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-rw-r--r--lsusb.c3827
1 files changed, 3827 insertions, 0 deletions
diff --git a/lsusb.c b/lsusb.c
new file mode 100644
index 0000000..5c64f42
--- /dev/null
+++ b/lsusb.c
@@ -0,0 +1,3827 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * lspci like utility for the USB bus
+ *
+ * Copyright (C) 1999-2001, 2003 Thomas Sailer (t.sailer@alumni.ethz.ch)
+ * Copyright (C) 2003-2005 David Brownell
+ */
+
+#include "config.h"
+#include <stdint.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <locale.h>
+#include <string.h>
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdarg.h>
+#include <stdbool.h>
+
+#ifdef HAVE_BYTESWAP_H
+#include <byteswap.h>
+#endif
+
+#include <libusb.h>
+#include <unistd.h>
+
+#include "lsusb.h"
+#include "names.h"
+#include "sysfs.h"
+#include "usbmisc.h"
+#include "desc-defs.h"
+#include "desc-dump.h"
+
+#include <getopt.h>
+
+#define le16_to_cpu(x) libusb_cpu_to_le16(libusb_cpu_to_le16(x))
+
+/* from USB 2.0 spec and updates */
+#define USB_DT_DEVICE_QUALIFIER 0x06
+#define USB_DT_OTHER_SPEED_CONFIG 0x07
+#define USB_DT_OTG 0x09
+#define USB_DT_DEBUG 0x0a
+#define USB_DT_INTERFACE_ASSOCIATION 0x0b
+#define USB_DT_SECURITY 0x0c
+#define USB_DT_KEY 0x0d
+#define USB_DT_ENCRYPTION_TYPE 0x0e
+#define USB_DT_BOS 0x0f
+#define USB_DT_DEVICE_CAPABILITY 0x10
+#define USB_DT_WIRELESS_ENDPOINT_COMP 0x11
+#define USB_DT_WIRE_ADAPTER 0x21
+#define USB_DT_RPIPE 0x22
+#define USB_DT_RC_INTERFACE 0x23
+#define USB_DT_SS_ENDPOINT_COMP 0x30
+
+/* Device Capability Type Codes (Wireless USB spec and USB 3.0 bus spec) */
+#define USB_DC_WIRELESS_USB 0x01
+#define USB_DC_20_EXTENSION 0x02
+#define USB_DC_SUPERSPEED 0x03
+#define USB_DC_CONTAINER_ID 0x04
+#define USB_DC_PLATFORM 0x05
+#define USB_DC_SUPERSPEEDPLUS 0x0a
+#define USB_DC_BILLBOARD 0x0d
+#define USB_DC_BILLBOARD_ALT_MODE 0x0f
+#define USB_DC_CONFIGURATION_SUMMARY 0x10
+
+/* Conventional codes for class-specific descriptors. The convention is
+ * defined in the USB "Common Class" Spec (3.11). Individual class specs
+ * are authoritative for their usage, not the "common class" writeup.
+ */
+#define USB_DT_CS_DEVICE (LIBUSB_REQUEST_TYPE_CLASS | LIBUSB_DT_DEVICE)
+#define USB_DT_CS_CONFIG (LIBUSB_REQUEST_TYPE_CLASS | LIBUSB_DT_CONFIG)
+#define USB_DT_CS_STRING (LIBUSB_REQUEST_TYPE_CLASS | LIBUSB_DT_STRING)
+#define USB_DT_CS_INTERFACE (LIBUSB_REQUEST_TYPE_CLASS | LIBUSB_DT_INTERFACE)
+#define USB_DT_CS_ENDPOINT (LIBUSB_REQUEST_TYPE_CLASS | LIBUSB_DT_ENDPOINT)
+
+#ifndef USB_CLASS_CCID
+#define USB_CLASS_CCID 0x0b
+#endif
+
+#ifndef USB_CLASS_VIDEO
+#define USB_CLASS_VIDEO 0x0e
+#endif
+
+#ifndef USB_CLASS_APPLICATION
+#define USB_CLASS_APPLICATION 0xfe
+#endif
+
+#ifndef USB_AUDIO_CLASS_1
+#define USB_AUDIO_CLASS_1 0x00
+#endif
+
+#ifndef USB_AUDIO_CLASS_2
+#define USB_AUDIO_CLASS_2 0x20
+#endif
+
+/* USB DCD for Audio Devices Release 3.0: Section A.6, pp139 */
+#ifndef USB_AUDIO_CLASS_3
+#define USB_AUDIO_CLASS_3 0x30
+#endif
+
+#ifndef USB_VIDEO_PROTOCOL_15
+#define USB_VIDEO_PROTOCOL_15 0x01
+#endif
+
+#define VERBLEVEL_DEFAULT 0 /* 0 gives lspci behaviour; 1, lsusb-0.9 */
+
+#define CTRL_TIMEOUT (5*1000) /* milliseconds */
+
+#define HUB_STATUS_BYTELEN 3 /* max 3 bytes status = hub + 23 ports */
+
+#define BILLBOARD_MAX_NUM_ALT_MODE (0x34)
+
+/* from WebUSB specification : https://wicg.github.io/webusb/ */
+#define WEBUSB_GUID "{3408b638-09a9-47a0-8bfd-a0768815b665}"
+#define WEBUSB_GET_URL 0x02
+#define USB_DT_WEBUSB_URL 0x03
+
+unsigned int verblevel = VERBLEVEL_DEFAULT;
+static int do_report_desc = 1;
+static const char * const encryption_type[] = {
+ "UNSECURE",
+ "WIRED",
+ "CCM_1",
+ "RSA_1",
+ "RESERVED"
+};
+
+static const char * const vconn_power[] = {
+ "1W",
+ "1.5W",
+ "2W",
+ "3W",
+ "4W",
+ "5W",
+ "6W",
+ "reserved"
+};
+
+static const char * const alt_mode_state[] = {
+ "Unspecified Error",
+ "Alternate Mode configuration not attempted",
+ "Alternate Mode configuration attempted but unsuccessful",
+ "Alternate Mode configuration successful"
+};
+
+static void dump_interface(libusb_device_handle *dev, const struct libusb_interface *interface);
+static void dump_endpoint(libusb_device_handle *dev, const struct libusb_interface_descriptor *interface, const struct libusb_endpoint_descriptor *endpoint);
+static void dump_audiocontrol_interface(libusb_device_handle *dev, const unsigned char *buf, int protocol);
+static void dump_audiostreaming_interface(libusb_device_handle *dev, const unsigned char *buf, int protocol);
+static void dump_midistreaming_interface(libusb_device_handle *dev, const unsigned char *buf);
+static void dump_videocontrol_interface(libusb_device_handle *dev, const unsigned char *buf, int protocol);
+static void dump_videostreaming_interface(const unsigned char *buf);
+static void dump_dfu_interface(const unsigned char *buf);
+static char *dump_comm_descriptor(libusb_device_handle *dev, const unsigned char *buf, char *indent);
+static void dump_hid_device(libusb_device_handle *dev, const struct libusb_interface_descriptor *interface, const unsigned char *buf);
+static void dump_printer_device(libusb_device_handle *dev, const struct libusb_interface_descriptor *interface, const unsigned char *buf);
+static void dump_audiostreaming_endpoint(libusb_device_handle *dev, const unsigned char *buf, int protocol);
+static void dump_midistreaming_endpoint(const unsigned char *buf);
+static void dump_hub(const char *prefix, const unsigned char *p, int tt_type);
+static void dump_ccid_device(const unsigned char *buf);
+static void dump_billboard_device_capability_desc(libusb_device_handle *dev, unsigned char *buf);
+
+/* ---------------------------------------------------------------------- */
+
+static unsigned int convert_le_u32 (const unsigned char *buf)
+{
+ return buf[0] | (buf[1] << 8) | (buf[2] << 16) | (buf[3] << 24);
+}
+
+static unsigned int convert_le_u16 (const unsigned char *buf)
+{
+ return buf[0] | (buf[1] << 8);
+}
+
+/* ---------------------------------------------------------------------- */
+
+/* workaround libusb API goofs: "byte" should never be sign extended;
+ * using "char" is trouble.
+ */
+
+static inline int typesafe_control_msg(libusb_device_handle *dev,
+ unsigned char requesttype, unsigned char request,
+ int value, int idx,
+ unsigned char *bytes, unsigned size, int timeout)
+{
+ int ret = libusb_control_transfer(dev, requesttype, request, value,
+ idx, bytes, size, timeout);
+
+ return ret;
+}
+
+#define usb_control_msg typesafe_control_msg
+
+static int get_protocol_string(char *buf, size_t size, uint8_t cls, uint8_t subcls, uint8_t proto)
+{
+ const char *cp;
+
+ if (size < 1)
+ return 0;
+ *buf = 0;
+ if (!(cp = names_protocol(cls, subcls, proto)))
+ return 0;
+ return snprintf(buf, size, "%s", cp);
+}
+
+static int get_videoterminal_string(char *buf, size_t size, uint16_t termt)
+{
+ const char *cp;
+
+ if (size < 1)
+ return 0;
+ *buf = 0;
+ if (!(cp = names_videoterminal(termt)))
+ return 0;
+ return snprintf(buf, size, "%s", cp);
+}
+
+static const char *get_guid(const unsigned char *buf)
+{
+ static char guid[39];
+
+ /* NOTE: see RFC 4122 for more information about GUID/UUID
+ * structure. The first fields fields are historically big
+ * endian numbers, dating from Apollo mc68000 workstations.
+ */
+ sprintf(guid, "{%02x%02x%02x%02x"
+ "-%02x%02x"
+ "-%02x%02x"
+ "-%02x%02x"
+ "-%02x%02x%02x%02x%02x%02x}",
+ buf[3], buf[2], buf[1], buf[0],
+ buf[5], buf[4],
+ buf[7], buf[6],
+ buf[8], buf[9],
+ buf[10], buf[11], buf[12], buf[13], buf[14], buf[15]);
+ return guid;
+}
+
+/* ---------------------------------------------------------------------- */
+
+static void dump_bytes(const unsigned char *buf, unsigned int len)
+{
+ unsigned int i;
+
+ for (i = 0; i < len; i++)
+ printf(" %02x", buf[i]);
+ printf("\n");
+}
+
+static void dump_junk(const unsigned char *buf, const char *indent, unsigned int len)
+{
+ unsigned int i;
+
+ if (buf[0] <= len)
+ return;
+ printf("%sjunk at descriptor end:", indent);
+ for (i = len; i < buf[0]; i++)
+ printf(" %02x", buf[i]);
+ printf("\n");
+}
+
+/*
+ * General config descriptor dump
+ */
+
+static void dump_device(
+ libusb_device *dev,
+ struct libusb_device_descriptor *descriptor
+)
+{
+ char vendor[128], product[128];
+ char cls[128], subcls[128], proto[128];
+ char mfg[128] = {0}, prod[128] = {0}, serial[128] = {0};
+ char sysfs_name[PATH_MAX];
+
+ get_vendor_product_with_fallback(vendor, sizeof(vendor),
+ product, sizeof(product), dev);
+ get_class_string(cls, sizeof(cls), descriptor->bDeviceClass);
+ get_subclass_string(subcls, sizeof(subcls),
+ descriptor->bDeviceClass, descriptor->bDeviceSubClass);
+ get_protocol_string(proto, sizeof(proto), descriptor->bDeviceClass,
+ descriptor->bDeviceSubClass, descriptor->bDeviceProtocol);
+
+ if (get_sysfs_name(sysfs_name, sizeof(sysfs_name), dev) >= 0) {
+ read_sysfs_prop(mfg, sizeof(mfg), sysfs_name, "manufacturer");
+ read_sysfs_prop(prod, sizeof(prod), sysfs_name, "product");
+ read_sysfs_prop(serial, sizeof(serial), sysfs_name, "serial");
+ }
+
+ printf("Device Descriptor:\n"
+ " bLength %5u\n"
+ " bDescriptorType %5u\n"
+ " bcdUSB %2x.%02x\n"
+ " bDeviceClass %5u %s\n"
+ " bDeviceSubClass %5u %s\n"
+ " bDeviceProtocol %5u %s\n"
+ " bMaxPacketSize0 %5u\n"
+ " idVendor 0x%04x %s\n"
+ " idProduct 0x%04x %s\n"
+ " bcdDevice %2x.%02x\n"
+ " iManufacturer %5u %s\n"
+ " iProduct %5u %s\n"
+ " iSerial %5u %s\n"
+ " bNumConfigurations %5u\n",
+ descriptor->bLength, descriptor->bDescriptorType,
+ descriptor->bcdUSB >> 8, descriptor->bcdUSB & 0xff,
+ descriptor->bDeviceClass, cls,
+ descriptor->bDeviceSubClass, subcls,
+ descriptor->bDeviceProtocol, proto,
+ descriptor->bMaxPacketSize0,
+ descriptor->idVendor, vendor, descriptor->idProduct, product,
+ descriptor->bcdDevice >> 8, descriptor->bcdDevice & 0xff,
+ descriptor->iManufacturer, mfg,
+ descriptor->iProduct, prod,
+ descriptor->iSerialNumber, serial,
+ descriptor->bNumConfigurations);
+}
+
+static void dump_wire_adapter(const unsigned char *buf)
+{
+
+ printf(" Wire Adapter Class Descriptor:\n"
+ " bLength %5u\n"
+ " bDescriptorType %5u\n"
+ " bcdWAVersion %2x.%02x\n"
+ " bNumPorts %5u\n"
+ " bmAttributes %5u\n"
+ " wNumRPRipes %5u\n"
+ " wRPipeMaxBlock %5u\n"
+ " bRPipeBlockSize %5u\n"
+ " bPwrOn2PwrGood %5u\n"
+ " bNumMMCIEs %5u\n"
+ " DeviceRemovable %5u\n",
+ buf[0], buf[1], buf[3], buf[2], buf[4], buf[5],
+ (buf[6] | buf[7] << 8),
+ (buf[8] | buf[9] << 8),
+ buf[10], buf[11], buf[12], buf[13]);
+}
+
+static void dump_rc_interface(const unsigned char *buf)
+{
+ printf(" Radio Control Interface Class Descriptor:\n"
+ " bLength %5u\n"
+ " bDescriptorType %5u\n"
+ " bcdRCIVersion %2x.%02x\n",
+ buf[0], buf[1], buf[3], buf[2]);
+
+}
+
+static void dump_security(const unsigned char *buf)
+{
+ printf(" Security Descriptor:\n"
+ " bLength %5u\n"
+ " bDescriptorType %5u\n"
+ " wTotalLength 0x%04x\n"
+ " bNumEncryptionTypes %5u\n",
+ buf[0], buf[1], (buf[3] << 8 | buf[2]), buf[4]);
+}
+
+static void dump_encryption_type(const unsigned char *buf)
+{
+ int b_encryption_type = buf[2] & 0x4;
+
+ printf(" Encryption Type Descriptor:\n"
+ " bLength %5u\n"
+ " bDescriptorType %5u\n"
+ " bEncryptionType %5u %s\n"
+ " bEncryptionValue %5u\n"
+ " bAuthKeyIndex %5u\n",
+ buf[0], buf[1], buf[2],
+ encryption_type[b_encryption_type], buf[3], buf[4]);
+}
+
+static void dump_association(libusb_device_handle *dev, const unsigned char *buf)
+{
+ char cls[128], subcls[128], proto[128];
+ char *func;
+
+ get_class_string(cls, sizeof(cls), buf[4]);
+ get_subclass_string(subcls, sizeof(subcls), buf[4], buf[5]);
+ get_protocol_string(proto, sizeof(proto), buf[4], buf[5], buf[6]);
+ func = get_dev_string(dev, buf[7]);
+
+ printf(" Interface Association:\n"
+ " bLength %5u\n"
+ " bDescriptorType %5u\n"
+ " bFirstInterface %5u\n"
+ " bInterfaceCount %5u\n"
+ " bFunctionClass %5u %s\n"
+ " bFunctionSubClass %5u %s\n"
+ " bFunctionProtocol %5u %s\n"
+ " iFunction %5u %s\n",
+ buf[0], buf[1],
+ buf[2], buf[3],
+ buf[4], cls,
+ buf[5], subcls,
+ buf[6], proto,
+ buf[7], func);
+
+ free(func);
+}
+
+static void dump_config(libusb_device_handle *dev, struct libusb_config_descriptor *config, unsigned speed)
+{
+ char *cfg;
+ int i;
+
+ cfg = get_dev_string(dev, config->iConfiguration);
+
+ printf(" Configuration Descriptor:\n"
+ " bLength %5u\n"
+ " bDescriptorType %5u\n"
+ " wTotalLength 0x%04x\n"
+ " bNumInterfaces %5u\n"
+ " bConfigurationValue %5u\n"
+ " iConfiguration %5u %s\n"
+ " bmAttributes 0x%02x\n",
+ config->bLength, config->bDescriptorType,
+ le16_to_cpu(config->wTotalLength),
+ config->bNumInterfaces, config->bConfigurationValue,
+ config->iConfiguration,
+ cfg, config->bmAttributes);
+
+ free(cfg);
+
+ if (!(config->bmAttributes & 0x80))
+ printf(" (Missing must-be-set bit!)\n");
+ if (config->bmAttributes & 0x40)
+ printf(" Self Powered\n");
+ else
+ printf(" (Bus Powered)\n");
+ if (config->bmAttributes & 0x20)
+ printf(" Remote Wakeup\n");
+ if (config->bmAttributes & 0x10)
+ printf(" Battery Powered\n");
+ printf(" MaxPower %5umA\n", config->MaxPower * (speed >= 0x0300 ? 8 : 2));
+
+ /* avoid re-ordering or hiding descriptors for display */
+ if (config->extra_length) {
+ int size = config->extra_length;
+ const unsigned char *buf = config->extra;
+
+ while (size >= 2) {
+ if (buf[0] < 2) {
+ dump_junk(buf, " ", size);
+ break;
+ }
+ switch (buf[1]) {
+ case USB_DT_OTG:
+ /* handled separately */
+ break;
+ case USB_DT_INTERFACE_ASSOCIATION:
+ dump_association(dev, buf);
+ break;
+ case USB_DT_SECURITY:
+ dump_security(buf);
+ break;
+ case USB_DT_ENCRYPTION_TYPE:
+ dump_encryption_type(buf);
+ break;
+ default:
+ /* often a misplaced class descriptor */
+ printf(" ** UNRECOGNIZED: ");
+ dump_bytes(buf, buf[0]);
+ break;
+ }
+ size -= buf[0];
+ buf += buf[0];
+ }
+ }
+ for (i = 0 ; i < config->bNumInterfaces ; i++)
+ dump_interface(dev, &config->interface[i]);
+}
+
+static void dump_altsetting(libusb_device_handle *dev, const struct libusb_interface_descriptor *interface)
+{
+ char cls[128], subcls[128], proto[128];
+ char *ifstr;
+
+ const unsigned char *buf;
+ unsigned size, i;
+
+ get_class_string(cls, sizeof(cls), interface->bInterfaceClass);
+ get_subclass_string(subcls, sizeof(subcls), interface->bInterfaceClass, interface->bInterfaceSubClass);
+ get_protocol_string(proto, sizeof(proto), interface->bInterfaceClass, interface->bInterfaceSubClass, interface->bInterfaceProtocol);
+ ifstr = get_dev_string(dev, interface->iInterface);
+
+ printf(" Interface Descriptor:\n"
+ " bLength %5u\n"
+ " bDescriptorType %5u\n"
+ " bInterfaceNumber %5u\n"
+ " bAlternateSetting %5u\n"
+ " bNumEndpoints %5u\n"
+ " bInterfaceClass %5u %s\n"
+ " bInterfaceSubClass %5u %s\n"
+ " bInterfaceProtocol %5u %s\n"
+ " iInterface %5u %s\n",
+ interface->bLength, interface->bDescriptorType, interface->bInterfaceNumber,
+ interface->bAlternateSetting, interface->bNumEndpoints, interface->bInterfaceClass, cls,
+ interface->bInterfaceSubClass, subcls, interface->bInterfaceProtocol, proto,
+ interface->iInterface, ifstr);
+
+ free(ifstr);
+
+ /* avoid re-ordering or hiding descriptors for display */
+ if (interface->extra_length) {
+ size = interface->extra_length;
+ buf = interface->extra;
+ while (size >= 2 * sizeof(uint8_t)) {
+ if (buf[0] < 2) {
+ dump_junk(buf, " ", size);
+ break;
+ }
+
+ switch (buf[1]) {
+
+ /* This is the polite way to provide class specific
+ * descriptors: explicitly tagged, using common class
+ * spec conventions.
+ */
+ case USB_DT_CS_DEVICE:
+ case USB_DT_CS_INTERFACE:
+ switch (interface->bInterfaceClass) {
+ case LIBUSB_CLASS_AUDIO:
+ switch (interface->bInterfaceSubClass) {
+ case 1:
+ dump_audiocontrol_interface(dev, buf, interface->bInterfaceProtocol);
+ break;
+ case 2:
+ dump_audiostreaming_interface(dev, buf, interface->bInterfaceProtocol);
+ break;
+ case 3:
+ dump_midistreaming_interface(dev, buf);
+ break;
+ default:
+ goto dump;
+ }
+ break;
+ case LIBUSB_CLASS_COMM:
+ dump_comm_descriptor(dev, buf,
+ " ");
+ break;
+ case USB_CLASS_VIDEO:
+ switch (interface->bInterfaceSubClass) {
+ case 1:
+ dump_videocontrol_interface(dev, buf, interface->bInterfaceProtocol);
+ break;
+ case 2:
+ dump_videostreaming_interface(buf);
+ break;
+ default:
+ goto dump;
+ }
+ break;
+ case USB_CLASS_APPLICATION:
+ switch (interface->bInterfaceSubClass) {
+ case 1:
+ dump_dfu_interface(buf);
+ break;
+ default:
+ goto dump;
+ }
+ break;
+ case LIBUSB_CLASS_HID:
+ dump_hid_device(dev, interface, buf);
+ break;
+ case LIBUSB_CLASS_PRINTER:
+ dump_printer_device(dev, interface, buf);
+ break;
+ case USB_CLASS_CCID:
+ dump_ccid_device(buf);
+ break;
+ default:
+ goto dump;
+ }
+ break;
+
+ /* This is the ugly way: implicitly tagged,
+ * each class could redefine the type IDs.
+ */
+ default:
+ switch (interface->bInterfaceClass) {
+ case LIBUSB_CLASS_HID:
+ dump_hid_device(dev, interface, buf);
+ break;
+ case USB_CLASS_CCID:
+ dump_ccid_device(buf);
+ break;
+ case 0xe0: /* wireless */
+ switch (interface->bInterfaceSubClass) {
+ case 1:
+ switch (interface->bInterfaceProtocol) {
+ case 2:
+ dump_rc_interface(buf);
+ break;
+ default:
+ goto dump;
+ }
+ break;
+ case 2:
+ dump_wire_adapter(buf);
+ break;
+ default:
+ goto dump;
+ }
+ break;
+ case LIBUSB_CLASS_AUDIO:
+ switch (buf[1]) {
+ /* MISPLACED DESCRIPTOR */
+ case USB_DT_CS_ENDPOINT:
+ switch (interface->bInterfaceSubClass) {
+ case 2:
+ dump_audiostreaming_endpoint(dev, buf, interface->bInterfaceProtocol);
+ break;
+ default:
+ goto dump;
+ }
+ break;
+ default:
+ goto dump;
+ }
+ break;
+ default:
+ /* ... not everything is class-specific */
+ switch (buf[1]) {
+ case USB_DT_OTG:
+ /* handled separately */
+ break;
+ case USB_DT_INTERFACE_ASSOCIATION:
+ dump_association(dev, buf);
+ break;
+ default:
+dump:
+ /* often a misplaced class descriptor */
+ printf(" ** UNRECOGNIZED: ");
+ dump_bytes(buf, buf[0]);
+ break;
+ }
+ }
+ }
+ size -= buf[0];
+ buf += buf[0];
+ }
+ }
+
+ for (i = 0 ; i < interface->bNumEndpoints ; i++)
+ dump_endpoint(dev, interface, &interface->endpoint[i]);
+}
+
+static void dump_interface(libusb_device_handle *dev, const struct libusb_interface *interface)
+{
+ int i;
+
+ for (i = 0; i < interface->num_altsetting; i++)
+ dump_altsetting(dev, &interface->altsetting[i]);
+}
+
+static void dump_pipe_desc(const unsigned char *buf)
+{
+ static const char *pipe_name[] = {
+ "Reserved",
+ "Command pipe",
+ "Status pipe",
+ "Data-in pipe",
+ "Data-out pipe",
+ [5 ... 0xDF] = "Reserved",
+ [0xE0 ... 0xEF] = "Vendor specific",
+ [0xF0 ... 0xFF] = "Reserved",
+ };
+
+ if (buf[0] == 4 && buf[1] == 0x24) {
+ printf(" %s (0x%02x)\n", pipe_name[buf[2]], buf[2]);
+ } else {
+ printf(" INTERFACE CLASS: ");
+ dump_bytes(buf, buf[0]);
+ }
+}
+
+static void dump_endpoint(libusb_device_handle *dev, const struct libusb_interface_descriptor *interface, const struct libusb_endpoint_descriptor *endpoint)
+{
+ static const char * const typeattr[] = {
+ "Control",
+ "Isochronous",
+ "Bulk",
+ "Interrupt"
+ };
+ static const char * const syncattr[] = {
+ "None",
+ "Asynchronous",
+ "Adaptive",
+ "Synchronous"
+ };
+ static const char * const usage[] = {
+ "Data",
+ "Feedback",
+ "Implicit feedback Data",
+ "(reserved)"
+ };
+ static const char * const hb[] = { "1x", "2x", "3x", "(?\?)" };
+ const unsigned char *buf;
+ unsigned size;
+ unsigned wmax = le16_to_cpu(endpoint->wMaxPacketSize);
+
+ printf(" Endpoint Descriptor:\n"
+ " bLength %5u\n"
+ " bDescriptorType %5u\n"
+ " bEndpointAddress 0x%02x EP %u %s\n"
+ " bmAttributes %5u\n"
+ " Transfer Type %s\n"
+ " Synch Type %s\n"
+ " Usage Type %s\n"
+ " wMaxPacketSize 0x%04x %s %d bytes\n"
+ " bInterval %5u\n",
+ endpoint->bLength,
+ endpoint->bDescriptorType,
+ endpoint->bEndpointAddress,
+ endpoint->bEndpointAddress & 0x0f,
+ (endpoint->bEndpointAddress & 0x80) ? "IN" : "OUT",
+ endpoint->bmAttributes,
+ typeattr[endpoint->bmAttributes & 3],
+ syncattr[(endpoint->bmAttributes >> 2) & 3],
+ usage[(endpoint->bmAttributes >> 4) & 3],
+ wmax, hb[(wmax >> 11) & 3], wmax & 0x7ff,
+ endpoint->bInterval);
+ /* only for audio endpoints */
+ if (endpoint->bLength == 9)
+ printf(" bRefresh %5u\n"
+ " bSynchAddress %5u\n",
+ endpoint->bRefresh, endpoint->bSynchAddress);
+
+ /* avoid re-ordering or hiding descriptors for display */
+ if (endpoint->extra_length) {
+ size = endpoint->extra_length;
+ buf = endpoint->extra;
+ while (size >= 2 * sizeof(uint8_t)) {
+ if (buf[0] < 2) {
+ dump_junk(buf, " ", size);
+ break;
+ }
+ switch (buf[1]) {
+ case USB_DT_CS_ENDPOINT:
+ if (interface->bInterfaceClass == 1 && interface->bInterfaceSubClass == 2)
+ dump_audiostreaming_endpoint(dev, buf, interface->bInterfaceProtocol);
+ else if (interface->bInterfaceClass == 1 && interface->bInterfaceSubClass == 3)
+ dump_midistreaming_endpoint(buf);
+ break;
+ case USB_DT_CS_INTERFACE:
+ /* MISPLACED DESCRIPTOR ... less indent */
+ switch (interface->bInterfaceClass) {
+ case LIBUSB_CLASS_COMM:
+ case LIBUSB_CLASS_DATA: /* comm data */
+ dump_comm_descriptor(dev, buf,
+ " ");
+ break;
+ case LIBUSB_CLASS_MASS_STORAGE:
+ dump_pipe_desc(buf);
+ break;
+ default:
+ printf(" INTERFACE CLASS: ");
+ dump_bytes(buf, buf[0]);
+ }
+ break;
+ case USB_DT_CS_DEVICE:
+ /* MISPLACED DESCRIPTOR ... less indent */
+ switch (interface->bInterfaceClass) {
+ case USB_CLASS_CCID:
+ dump_ccid_device(buf);
+ break;
+ default:
+ printf(" DEVICE CLASS: ");
+ dump_bytes(buf, buf[0]);
+ }
+ break;
+ case USB_DT_OTG:
+ /* handled separately */
+ break;
+ case USB_DT_INTERFACE_ASSOCIATION:
+ dump_association(dev, buf);
+ break;
+ case USB_DT_SS_ENDPOINT_COMP:
+ printf(" bMaxBurst %15u\n", buf[2]);
+ /* Print bulk streams info or isoc "Mult" */
+ if ((endpoint->bmAttributes & 3) == 2 &&
+ (buf[3] & 0x1f))
+ printf(" MaxStreams %14u\n",
+ (unsigned) 1 << buf[3]);
+ if ((endpoint->bmAttributes & 3) == 1 &&
+ (buf[3] & 0x3))
+ printf(" Mult %20u\n",
+ buf[3] & 0x3);
+ break;
+ default:
+ /* often a misplaced class descriptor */
+ printf(" ** UNRECOGNIZED: ");
+ dump_bytes(buf, buf[0]);
+ break;
+ }
+ size -= buf[0];
+ buf += buf[0];
+ }
+ }
+}
+
+static void dump_unit(unsigned int data, unsigned int len)
+{
+ char *systems[5] = { "None", "SI Linear", "SI Rotation",
+ "English Linear", "English Rotation" };
+
+ char *units[5][8] = {
+ { "None", "None", "None", "None", "None",
+ "None", "None", "None" },
+ { "None", "Centimeter", "Gram", "Seconds", "Kelvin",
+ "Ampere", "Candela", "None" },
+ { "None", "Radians", "Gram", "Seconds", "Kelvin",
+ "Ampere", "Candela", "None" },
+ { "None", "Inch", "Slug", "Seconds", "Fahrenheit",
+ "Ampere", "Candela", "None" },
+ { "None", "Degrees", "Slug", "Seconds", "Fahrenheit",
+ "Ampere", "Candela", "None" },
+ };
+
+ unsigned int i;
+ unsigned int sys;
+ int earlier_unit = 0;
+
+ /* First nibble tells us which system we're in. */
+ sys = data & 0xf;
+ data >>= 4;
+
+ if (sys > 4) {
+ if (sys == 0xf)
+ printf("System: Vendor defined, Unit: (unknown)\n");
+ else
+ printf("System: Reserved, Unit: (unknown)\n");
+ return;
+ } else {
+ printf("System: %s, Unit: ", systems[sys]);
+ }
+ for (i = 1 ; i < len * 2 ; i++) {
+ char nibble = data & 0xf;
+ data >>= 4;
+ if (nibble != 0) {
+ if (earlier_unit++ > 0)
+ printf("*");
+ printf("%s", units[sys][i]);
+ if (nibble != 1) {
+ /* This is a _signed_ nibble(!) */
+
+ int val = nibble & 0x7;
+ if (nibble & 0x08)
+ val = -((0x7 & ~val) + 1);
+ printf("^%d", val);
+ }
+ }
+ }
+ if (earlier_unit == 0)
+ printf("(None)");
+ printf("\n");
+}
+
+/* ---------------------------------------------------------------------- */
+
+/*
+ * Audio Class descriptor dump
+ */
+
+static void dump_audio_subtype(libusb_device_handle *dev,
+ const char *name,
+ const struct desc * const desc[3],
+ const unsigned char *buf,
+ int protocol,
+ unsigned int indent)
+{
+ static const char * const strings[] = { "UAC1", "UAC2", "UAC3" };
+ unsigned int idx = 0;
+
+ switch (protocol) {
+ case USB_AUDIO_CLASS_2: idx = 1; break;
+ case USB_AUDIO_CLASS_3: idx = 2; break;
+ }
+
+ printf("(%s)\n", name);
+
+ if (desc[idx] == NULL) {
+ printf("%*sWarning: %s descriptors are illegal for %s\n",
+ indent * 2, "", name, strings[idx]);
+ return;
+ }
+
+ /* Skip the first three bytes; those common fields have already
+ * been dumped. */
+ desc_dump(dev, desc[idx], buf + 3, buf[0] - 3, indent);
+}
+
+/* USB Audio Class subtypes */
+enum uac_interface_subtype {
+ UAC_INTERFACE_SUBTYPE_AC_DESCRIPTOR_UNDEFINED = 0x00,
+ UAC_INTERFACE_SUBTYPE_HEADER = 0x01,
+ UAC_INTERFACE_SUBTYPE_INPUT_TERMINAL = 0x02,
+ UAC_INTERFACE_SUBTYPE_OUTPUT_TERMINAL = 0x03,
+ UAC_INTERFACE_SUBTYPE_EXTENDED_TERMINAL = 0x04,
+ UAC_INTERFACE_SUBTYPE_MIXER_UNIT = 0x05,
+ UAC_INTERFACE_SUBTYPE_SELECTOR_UNIT = 0x06,
+ UAC_INTERFACE_SUBTYPE_FEATURE_UNIT = 0x07,
+ UAC_INTERFACE_SUBTYPE_EFFECT_UNIT = 0x08,
+ UAC_INTERFACE_SUBTYPE_PROCESSING_UNIT = 0x09,
+ UAC_INTERFACE_SUBTYPE_EXTENSION_UNIT = 0x0a,
+ UAC_INTERFACE_SUBTYPE_CLOCK_SOURCE = 0x0b,
+ UAC_INTERFACE_SUBTYPE_CLOCK_SELECTOR = 0x0c,
+ UAC_INTERFACE_SUBTYPE_CLOCK_MULTIPLIER = 0x0d,
+ UAC_INTERFACE_SUBTYPE_SAMPLE_RATE_CONVERTER = 0x0e,
+ UAC_INTERFACE_SUBTYPE_CONNECTORS = 0x0f,
+ UAC_INTERFACE_SUBTYPE_POWER_DOMAIN = 0x10,
+};
+
+/*
+ * UAC1, UAC2, and UAC3 define bDescriptorSubtype differently for the
+ * AudioControl interface, so we need to do some ugly remapping:
+ *
+ * val | UAC1 | UAC2 | UAC3
+ * -----|-----------------|-----------------------|---------------------
+ * 0x00 | AC UNDEFINED | AC UNDEFINED | AC UNDEFINED
+ * 0x01 | HEADER | HEADER | HEADER
+ * 0x02 | INPUT_TERMINAL | INPUT_TERMINAL | INPUT_TERMINAL
+ * 0x03 | OUTPUT_TERMINAL | OUTPUT_TERMINAL | OUTPUT_TERMINAL
+ * 0x04 | MIXER_UNIT | MIXER_UNIT | EXTENDED_TERMINAL
+ * 0x05 | SELECTOR_UNIT | SELECTOR_UNIT | MIXER_UNIT
+ * 0x06 | FEATURE_UNIT | FEATURE_UNIT | SELECTOR_UNIT
+ * 0x07 | PROCESSING_UNIT | EFFECT_UNIT | FEATURE_UNIT
+ * 0x08 | EXTENSION_UNIT | PROCESSING_UNIT | EFFECT_UNIT
+ * 0x09 | - | EXTENSION_UNIT | PROCESSING_UNIT
+ * 0x0a | - | CLOCK_SOURCE | EXTENSION_UNIT
+ * 0x0b | - | CLOCK_SELECTOR | CLOCK_SOURCE
+ * 0x0c | - | CLOCK_MULTIPLIER | CLOCK_SELECTOR
+ * 0x0d | - | SAMPLE_RATE_CONVERTER | CLOCK_MULTIPLIER
+ * 0x0e | - | - | SAMPLE_RATE_CONVERTER
+ * 0x0f | - | - | CONNECTORS
+ * 0x10 | - | - | POWER_DOMAIN
+ */
+static enum uac_interface_subtype get_uac_interface_subtype(unsigned char c, int protocol)
+{
+ switch (protocol) {
+ case USB_AUDIO_CLASS_1:
+ switch(c) {
+ case 0x04: return UAC_INTERFACE_SUBTYPE_MIXER_UNIT;
+ case 0x05: return UAC_INTERFACE_SUBTYPE_SELECTOR_UNIT;
+ case 0x06: return UAC_INTERFACE_SUBTYPE_FEATURE_UNIT;
+ case 0x07: return UAC_INTERFACE_SUBTYPE_PROCESSING_UNIT;
+ case 0x08: return UAC_INTERFACE_SUBTYPE_EXTENSION_UNIT;
+ }
+ break;
+ case USB_AUDIO_CLASS_2:
+ switch(c) {
+ case 0x04: return UAC_INTERFACE_SUBTYPE_MIXER_UNIT;
+ case 0x05: return UAC_INTERFACE_SUBTYPE_SELECTOR_UNIT;
+ case 0x06: return UAC_INTERFACE_SUBTYPE_FEATURE_UNIT;
+ case 0x07: return UAC_INTERFACE_SUBTYPE_EFFECT_UNIT;
+ case 0x08: return UAC_INTERFACE_SUBTYPE_PROCESSING_UNIT;
+ case 0x09: return UAC_INTERFACE_SUBTYPE_EXTENSION_UNIT;
+ case 0x0a: return UAC_INTERFACE_SUBTYPE_CLOCK_SOURCE;
+ case 0x0b: return UAC_INTERFACE_SUBTYPE_CLOCK_SELECTOR;
+ case 0x0c: return UAC_INTERFACE_SUBTYPE_CLOCK_MULTIPLIER;
+ case 0x0d: return UAC_INTERFACE_SUBTYPE_SAMPLE_RATE_CONVERTER;
+ }
+ break;
+ case USB_AUDIO_CLASS_3:
+ /* No mapping required. */
+ break;
+ default:
+ /* Unknown protocol */
+ break;
+ }
+
+ /* If the protocol was unknown, or the value was not known to require
+ * mapping, just return it unchanged. */
+ return c;
+}
+
+static void dump_audiocontrol_interface(libusb_device_handle *dev, const unsigned char *buf, int protocol)
+{
+ enum uac_interface_subtype subtype;
+
+ if (buf[1] != USB_DT_CS_INTERFACE)
+ printf(" Warning: Invalid descriptor\n");
+ else if (buf[0] < 3)
+ printf(" Warning: Descriptor too short\n");
+ printf(" AudioControl Interface Descriptor:\n"
+ " bLength %5u\n"
+ " bDescriptorType %5u\n"
+ " bDescriptorSubtype %5u ",
+ buf[0], buf[1], buf[2]);
+
+ subtype = get_uac_interface_subtype(buf[2], protocol);
+
+ switch (subtype) {
+ case UAC_INTERFACE_SUBTYPE_HEADER:
+ dump_audio_subtype(dev, "HEADER", desc_audio_ac_header, buf, protocol, 4);
+ break;
+
+ case UAC_INTERFACE_SUBTYPE_INPUT_TERMINAL:
+ dump_audio_subtype(dev, "INPUT_TERMINAL", desc_audio_ac_input_terminal, buf, protocol, 4);
+ break;
+
+ case UAC_INTERFACE_SUBTYPE_OUTPUT_TERMINAL:
+ dump_audio_subtype(dev, "OUTPUT_TERMINAL", desc_audio_ac_output_terminal, buf, protocol, 4);
+ break;
+
+ case UAC_INTERFACE_SUBTYPE_MIXER_UNIT:
+ dump_audio_subtype(dev, "MIXER_UNIT", desc_audio_ac_mixer_unit, buf, protocol, 4);
+ break;
+
+ case UAC_INTERFACE_SUBTYPE_SELECTOR_UNIT:
+ dump_audio_subtype(dev, "SELECTOR_UNIT", desc_audio_ac_selector_unit, buf, protocol, 4);
+ break;
+
+ case UAC_INTERFACE_SUBTYPE_FEATURE_UNIT:
+ dump_audio_subtype(dev, "FEATURE_UNIT", desc_audio_ac_feature_unit, buf, protocol, 4);
+ break;
+
+ case UAC_INTERFACE_SUBTYPE_PROCESSING_UNIT:
+ dump_audio_subtype(dev, "PROCESSING_UNIT", desc_audio_ac_processing_unit, buf, protocol, 4);
+ break;
+
+ case UAC_INTERFACE_SUBTYPE_EXTENSION_UNIT:
+ dump_audio_subtype(dev, "EXTENSION_UNIT", desc_audio_ac_extension_unit, buf, protocol, 4);
+ break;
+
+ case UAC_INTERFACE_SUBTYPE_CLOCK_SOURCE:
+ dump_audio_subtype(dev, "CLOCK_SOURCE", desc_audio_ac_clock_source, buf, protocol, 4);
+ break;
+
+ case UAC_INTERFACE_SUBTYPE_CLOCK_SELECTOR:
+ dump_audio_subtype(dev, "CLOCK_SELECTOR", desc_audio_ac_clock_selector, buf, protocol, 4);
+ break;
+
+ case UAC_INTERFACE_SUBTYPE_CLOCK_MULTIPLIER:
+ dump_audio_subtype(dev, "CLOCK_MULTIPLIER", desc_audio_ac_clock_multiplier, buf, protocol, 4);
+ break;
+
+ case UAC_INTERFACE_SUBTYPE_SAMPLE_RATE_CONVERTER:
+ dump_audio_subtype(dev, "SAMPLING_RATE_CONVERTER", desc_audio_ac_clock_multiplier, buf, protocol, 4);
+ break;
+
+ case UAC_INTERFACE_SUBTYPE_EFFECT_UNIT:
+ dump_audio_subtype(dev, "EFFECT_UNIT", desc_audio_ac_effect_unit, buf, protocol, 4);
+ break;
+
+ case UAC_INTERFACE_SUBTYPE_POWER_DOMAIN:
+ dump_audio_subtype(dev, "POWER_DOMAIN", desc_audio_ac_power_domain, buf, protocol, 4);
+ break;
+
+ default:
+ printf("(unknown)\n"
+ " Invalid desc subtype:");
+ dump_bytes(buf+3, buf[0]-3);
+ break;
+ }
+}
+
+
+static void dump_audiostreaming_interface(libusb_device_handle *dev, const unsigned char *buf, int protocol)
+{
+ static const char * const fmtItag[] = {
+ "TYPE_I_UNDEFINED", "PCM", "PCM8", "IEEE_FLOAT", "ALAW", "MULAW" };
+ static const char * const fmtIItag[] = { "TYPE_II_UNDEFINED", "MPEG", "AC-3" };
+ static const char * const fmtIIItag[] = {
+ "TYPE_III_UNDEFINED", "IEC1937_AC-3", "IEC1937_MPEG-1_Layer1",
+ "IEC1937_MPEG-Layer2/3/NOEXT", "IEC1937_MPEG-2_EXT",
+ "IEC1937_MPEG-2_Layer1_LS", "IEC1937_MPEG-2_Layer2/3_LS" };
+ unsigned int i, j, fmttag;
+ const char *fmtptr = "undefined";
+
+ if (buf[1] != USB_DT_CS_INTERFACE)
+ printf(" Warning: Invalid descriptor\n");
+ else if (buf[0] < 3)
+ printf(" Warning: Descriptor too short\n");
+ printf(" AudioStreaming Interface Descriptor:\n"
+ " bLength %5u\n"
+ " bDescriptorType %5u\n"
+ " bDescriptorSubtype %5u ",
+ buf[0], buf[1], buf[2]);
+ switch (buf[2]) {
+ case 0x01: /* AS_GENERAL */
+ dump_audio_subtype(dev, "AS_GENERAL", desc_audio_as_interface, buf, protocol, 4);
+ break;
+
+ case 0x02: /* FORMAT_TYPE */
+ printf("(FORMAT_TYPE)\n");
+ switch (protocol) {
+ case USB_AUDIO_CLASS_1:
+ if (buf[0] < 8)
+ printf(" Warning: Descriptor too short\n");
+ printf(" bFormatType %5u ", buf[3]);
+ switch (buf[3]) {
+ case 0x01: /* FORMAT_TYPE_I */
+ printf("(FORMAT_TYPE_I)\n");
+ j = buf[7] ? (buf[7]*3+8) : 14;
+ if (buf[0] < j)
+ printf(" Warning: Descriptor too short\n");
+ printf(" bNrChannels %5u\n"
+ " bSubframeSize %5u\n"
+ " bBitResolution %5u\n"
+ " bSamFreqType %5u %s\n",
+ buf[4], buf[5], buf[6], buf[7], buf[7] ? "Discrete" : "Continuous");
+ if (!buf[7])
+ printf(" tLowerSamFreq %7u\n"
+ " tUpperSamFreq %7u\n",
+ buf[8] | (buf[9] << 8) | (buf[10] << 16), buf[11] | (buf[12] << 8) | (buf[13] << 16));
+ else
+ for (i = 0; i < buf[7]; i++)
+ printf(" tSamFreq[%2u] %7u\n", i,
+ buf[8+3*i] | (buf[9+3*i] << 8) | (buf[10+3*i] << 16));
+ dump_junk(buf, " ", j);
+ break;
+
+ case 0x02: /* FORMAT_TYPE_II */
+ printf("(FORMAT_TYPE_II)\n");
+ j = buf[8] ? (buf[7]*3+9) : 15;
+ if (buf[0] < j)
+ printf(" Warning: Descriptor too short\n");
+ printf(" wMaxBitRate %5u\n"
+ " wSamplesPerFrame %5u\n"
+ " bSamFreqType %5u %s\n",
+ buf[4] | (buf[5] << 8), buf[6] | (buf[7] << 8), buf[8], buf[8] ? "Discrete" : "Continuous");
+ if (!buf[8])
+ printf(" tLowerSamFreq %7u\n"
+ " tUpperSamFreq %7u\n",
+ buf[9] | (buf[10] << 8) | (buf[11] << 16), buf[12] | (buf[13] << 8) | (buf[14] << 16));
+ else
+ for (i = 0; i < buf[8]; i++)
+ printf(" tSamFreq[%2u] %7u\n", i,
+ buf[9+3*i] | (buf[10+3*i] << 8) | (buf[11+3*i] << 16));
+ dump_junk(buf, " ", j);
+ break;
+
+ case 0x03: /* FORMAT_TYPE_III */
+ printf("(FORMAT_TYPE_III)\n");
+ j = buf[7] ? (buf[7]*3+8) : 14;
+ if (buf[0] < j)
+ printf(" Warning: Descriptor too short\n");
+ printf(" bNrChannels %5u\n"
+ " bSubframeSize %5u\n"
+ " bBitResolution %5u\n"
+ " bSamFreqType %5u %s\n",
+ buf[4], buf[5], buf[6], buf[7], buf[7] ? "Discrete" : "Continuous");
+ if (!buf[7])
+ printf(" tLowerSamFreq %7u\n"
+ " tUpperSamFreq %7u\n",
+ buf[8] | (buf[9] << 8) | (buf[10] << 16), buf[11] | (buf[12] << 8) | (buf[13] << 16));
+ else
+ for (i = 0; i < buf[7]; i++)
+ printf(" tSamFreq[%2u] %7u\n", i,
+ buf[8+3*i] | (buf[9+3*i] << 8) | (buf[10+3*i] << 16));
+ dump_junk(buf, " ", j);
+ break;
+
+ default:
+ printf("(unknown)\n"
+ " Invalid desc format type:");
+ dump_bytes(buf+4, buf[0]-4);
+ }
+
+ break;
+
+ case USB_AUDIO_CLASS_2:
+ printf(" bFormatType %5u ", buf[3]);
+ switch (buf[3]) {
+ case 0x01: /* FORMAT_TYPE_I */
+ printf("(FORMAT_TYPE_I)\n");
+ if (buf[0] < 6)
+ printf(" Warning: Descriptor too short\n");
+ printf(" bSubslotSize %5u\n"
+ " bBitResolution %5u\n",
+ buf[4], buf[5]);
+ dump_junk(buf, " ", 6);
+ break;
+
+ case 0x02: /* FORMAT_TYPE_II */
+ printf("(FORMAT_TYPE_II)\n");
+ if (buf[0] < 8)
+ printf(" Warning: Descriptor too short\n");
+ printf(" wMaxBitRate %5u\n"
+ " wSlotsPerFrame %5u\n",
+ buf[4] | (buf[5] << 8),
+ buf[6] | (buf[7] << 8));
+ dump_junk(buf, " ", 8);
+ break;
+
+ case 0x03: /* FORMAT_TYPE_III */
+ printf("(FORMAT_TYPE_III)\n");
+ if (buf[0] < 6)
+ printf(" Warning: Descriptor too short\n");
+ printf(" bSubslotSize %5u\n"
+ " bBitResolution %5u\n",
+ buf[4], buf[5]);
+ dump_junk(buf, " ", 6);
+ break;
+
+ case 0x04: /* FORMAT_TYPE_IV */
+ printf("(FORMAT_TYPE_IV)\n");
+ if (buf[0] < 4)
+ printf(" Warning: Descriptor too short\n");
+ printf(" bFormatType %5u\n", buf[3]);
+ dump_junk(buf, " ", 4);
+ break;
+
+ default:
+ printf("(unknown)\n"
+ " Invalid desc format type:");
+ dump_bytes(buf+4, buf[0]-4);
+ }
+
+ break;
+ } /* switch (protocol) */
+
+ break;
+
+ case 0x03: /* FORMAT_SPECIFIC */
+ printf("(FORMAT_SPECIFIC)\n");
+ if (buf[0] < 5)
+ printf(" Warning: Descriptor too short\n");
+ fmttag = buf[3] | (buf[4] << 8);
+ if (fmttag <= 5)
+ fmtptr = fmtItag[fmttag];
+ else if (fmttag >= 0x1000 && fmttag <= 0x1002)
+ fmtptr = fmtIItag[fmttag & 0xfff];
+ else if (fmttag >= 0x2000 && fmttag <= 0x2006)
+ fmtptr = fmtIIItag[fmttag & 0xfff];
+ printf(" wFormatTag %5u %s\n", fmttag, fmtptr);
+ switch (fmttag) {
+ case 0x1001: /* MPEG */
+ if (buf[0] < 8)
+ printf(" Warning: Descriptor too short\n");
+ printf(" bmMPEGCapabilities 0x%04x\n",
+ buf[5] | (buf[6] << 8));
+ if (buf[5] & 0x01)
+ printf(" Layer I\n");
+ if (buf[5] & 0x02)
+ printf(" Layer II\n");
+ if (buf[5] & 0x04)
+ printf(" Layer III\n");
+ if (buf[5] & 0x08)
+ printf(" MPEG-1 only\n");
+ if (buf[5] & 0x10)
+ printf(" MPEG-1 dual-channel\n");
+ if (buf[5] & 0x20)
+ printf(" MPEG-2 second stereo\n");
+ if (buf[5] & 0x40)
+ printf(" MPEG-2 7.1 channel augmentation\n");
+ if (buf[5] & 0x80)
+ printf(" Adaptive multi-channel prediction\n");
+ printf(" MPEG-2 multilingual support: ");
+ switch (buf[6] & 3) {
+ case 0:
+ printf("Not supported\n");
+ break;
+
+ case 1:
+ printf("Supported at Fs\n");
+ break;
+
+ case 2:
+ printf("Reserved\n");
+ break;
+
+ default:
+ printf("Supported at Fs and 1/2Fs\n");
+ break;
+ }
+ printf(" bmMPEGFeatures 0x%02x\n", buf[7]);
+ printf(" Internal Dynamic Range Control: ");
+ switch ((buf[7] >> 4) & 3) {
+ case 0:
+ printf("not supported\n");
+ break;
+
+ case 1:
+ printf("supported but not scalable\n");
+ break;
+
+ case 2:
+ printf("scalable, common boost and cut scaling value\n");
+ break;
+
+ default:
+ printf("scalable, separate boost and cut scaling value\n");
+ break;
+ }
+ dump_junk(buf, " ", 8);
+ break;
+
+ case 0x1002: /* AC-3 */
+ if (buf[0] < 10)
+ printf(" Warning: Descriptor too short\n");
+ printf(" bmBSID 0x%08x\n"
+ " bmAC3Features 0x%02x\n",
+ buf[5] | (buf[6] << 8) | (buf[7] << 16) | (buf[8] << 24), buf[9]);
+ if (buf[9] & 0x01)
+ printf(" RF mode\n");
+ if (buf[9] & 0x02)
+ printf(" Line mode\n");
+ if (buf[9] & 0x04)
+ printf(" Custom0 mode\n");
+ if (buf[9] & 0x08)
+ printf(" Custom1 mode\n");
+ printf(" Internal Dynamic Range Control: ");
+ switch ((buf[9] >> 4) & 3) {
+ case 0:
+ printf("not supported\n");
+ break;
+
+ case 1:
+ printf("supported but not scalable\n");
+ break;
+
+ case 2:
+ printf("scalable, common boost and cut scaling value\n");
+ break;
+
+ default:
+ printf("scalable, separate boost and cut scaling value\n");
+ break;
+ }
+ dump_junk(buf, " ", 8);
+ break;
+
+ default:
+ printf("(unknown)\n"
+ " Invalid desc format type:");
+ dump_bytes(buf+4, buf[0]-4);
+ }
+ break;
+
+ default:
+ printf(" Invalid desc subtype:");
+ dump_bytes(buf+3, buf[0]-3);
+ break;
+ }
+}
+
+static void dump_audiostreaming_endpoint(libusb_device_handle *dev, const unsigned char *buf, int protocol)
+{
+ static const char * const subtype[] = { "invalid", "EP_GENERAL" };
+
+ if (buf[1] != USB_DT_CS_ENDPOINT)
+ printf(" Warning: Invalid descriptor\n");
+
+ printf(" AudioStreaming Endpoint Descriptor:\n"
+ " bLength %5u\n"
+ " bDescriptorType %5u\n"
+ " bDescriptorSubtype %5u ",
+ buf[0], buf[1], buf[2]);
+
+ dump_audio_subtype(dev, subtype[buf[2] == 1],
+ desc_audio_as_isochronous_audio_data_endpoint, buf, protocol, 5);
+}
+
+static void dump_midistreaming_interface(libusb_device_handle *dev, const unsigned char *buf)
+{
+ static const char * const jacktypes[] = {"Undefined", "Embedded", "External"};
+ char *jackstr = NULL;
+ unsigned int j, tlength, capssize;
+ unsigned long caps;
+
+ if (buf[1] != USB_DT_CS_INTERFACE)
+ printf(" Warning: Invalid descriptor\n");
+ else if (buf[0] < 3)
+ printf(" Warning: Descriptor too short\n");
+ printf(" MIDIStreaming Interface Descriptor:\n"
+ " bLength %5u\n"
+ " bDescriptorType %5u\n"
+ " bDescriptorSubtype %5u ",
+ buf[0], buf[1], buf[2]);
+ switch (buf[2]) {
+ case 0x01:
+ printf("(HEADER)\n");
+ if (buf[0] < 7)
+ printf(" Warning: Descriptor too short\n");
+ tlength = buf[5] | (buf[6] << 8);
+ printf(" bcdADC %2x.%02x\n"
+ " wTotalLength 0x%04x\n",
+ buf[4], buf[3], tlength);
+ dump_junk(buf, " ", 7);
+ break;
+
+ case 0x02:
+ printf("(MIDI_IN_JACK)\n");
+ if (buf[0] < 6)
+ printf(" Warning: Descriptor too short\n");
+ jackstr = get_dev_string(dev, buf[5]);
+ printf(" bJackType %5u %s\n"
+ " bJackID %5u\n"
+ " iJack %5u %s\n",
+ buf[3], buf[3] < 3 ? jacktypes[buf[3]] : "Invalid",
+ buf[4], buf[5], jackstr);
+ dump_junk(buf, " ", 6);
+ break;
+
+ case 0x03:
+ printf("(MIDI_OUT_JACK)\n");
+ if (buf[0] < 9)
+ printf(" Warning: Descriptor too short\n");
+ printf(" bJackType %5u %s\n"
+ " bJackID %5u\n"
+ " bNrInputPins %5u\n",
+ buf[3], buf[3] < 3 ? jacktypes[buf[3]] : "Invalid",
+ buf[4], buf[5]);
+ for (j = 0; j < buf[5]; j++) {
+ printf(" baSourceID(%2u) %5u\n"
+ " BaSourcePin(%2u) %5u\n",
+ j, buf[2*j+6], j, buf[2*j+7]);
+ }
+ j = 6+buf[5]*2; /* midi10.pdf says, incorrectly: 5+2*p */
+ jackstr = get_dev_string(dev, buf[j]);
+ printf(" iJack %5u %s\n",
+ buf[j], jackstr);
+ dump_junk(buf, " ", j+1);
+ break;
+
+ case 0x04:
+ printf("(ELEMENT)\n");
+ if (buf[0] < 12)
+ printf(" Warning: Descriptor too short\n");
+ printf(" bElementID %5u\n"
+ " bNrInputPins %5u\n",
+ buf[3], buf[4]);
+ for (j = 0; j < buf[4]; j++) {
+ printf(" baSourceID(%2u) %5u\n"
+ " BaSourcePin(%2u) %5u\n",
+ j, buf[2*j+5], j, buf[2*j+6]);
+ }
+ j = 5+buf[4]*2;
+ printf(" bNrOutputPins %5u\n"
+ " bInTerminalLink %5u\n"
+ " bOutTerminalLink %5u\n"
+ " bElCapsSize %5u\n",
+ buf[j], buf[j+1], buf[j+2], buf[j+3]);
+ capssize = buf[j+3];
+ caps = 0;
+ for (j = 0; j < capssize; j++)
+ caps |= (buf[j+9+buf[4]*2] << (8*j));
+ printf(" bmElementCaps 0x%08lx\n", caps);
+ if (caps & 0x01)
+ printf(" Undefined\n");
+ if (caps & 0x02)
+ printf(" MIDI Clock\n");
+ if (caps & 0x04)
+ printf(" MTC (MIDI Time Code)\n");
+ if (caps & 0x08)
+ printf(" MMC (MIDI Machine Control)\n");
+ if (caps & 0x10)
+ printf(" GM1 (General MIDI v.1)\n");
+ if (caps & 0x20)
+ printf(" GM2 (General MIDI v.2)\n");
+ if (caps & 0x40)
+ printf(" GS MIDI Extension\n");
+ if (caps & 0x80)
+ printf(" XG MIDI Extension\n");
+ if (caps & 0x100)
+ printf(" EFX\n");
+ if (caps & 0x200)
+ printf(" MIDI Patch Bay\n");
+ if (caps & 0x400)
+ printf(" DLS1 (Downloadable Sounds Level 1)\n");
+ if (caps & 0x800)
+ printf(" DLS2 (Downloadable Sounds Level 2)\n");
+ j = 9+2*buf[4]+capssize;
+ jackstr = get_dev_string(dev, buf[j]);
+ printf(" iElement %5u %s\n", buf[j], jackstr);
+ dump_junk(buf, " ", j+1);
+ break;
+
+ default:
+ printf("\n Invalid desc subtype: ");
+ dump_bytes(buf+3, buf[0]-3);
+ break;
+ }
+
+ free(jackstr);
+}
+
+static void dump_midistreaming_endpoint(const unsigned char *buf)
+{
+ unsigned int j;
+
+ if (buf[1] != USB_DT_CS_ENDPOINT)
+ printf(" Warning: Invalid descriptor\n");
+ else if (buf[0] < 5)
+ printf(" Warning: Descriptor too short\n");
+ printf(" MIDIStreaming Endpoint Descriptor:\n"
+ " bLength %5u\n"
+ " bDescriptorType %5u\n"
+ " bDescriptorSubtype %5u (%s)\n"
+ " bNumEmbMIDIJack %5u\n",
+ buf[0], buf[1], buf[2], buf[2] == 2 ? "GENERAL" : "Invalid", buf[3]);
+ for (j = 0; j < buf[3]; j++)
+ printf(" baAssocJackID(%2u) %5u\n", j, buf[4+j]);
+ dump_junk(buf, " ", 4+buf[3]);
+}
+
+/*
+ * Video Class descriptor dump
+ */
+
+static void dump_videocontrol_interface(libusb_device_handle *dev, const unsigned char *buf, int protocol)
+{
+ static const char * const ctrlnames[] = {
+ "Brightness", "Contrast", "Hue", "Saturation", "Sharpness", "Gamma",
+ "White Balance Temperature", "White Balance Component", "Backlight Compensation",
+ "Gain", "Power Line Frequency", "Hue, Auto", "White Balance Temperature, Auto",
+ "White Balance Component, Auto", "Digital Multiplier", "Digital Multiplier Limit",
+ "Analog Video Standard", "Analog Video Lock Status", "Contrast, Auto"
+ };
+ static const char * const camctrlnames[] = {
+ "Scanning Mode", "Auto-Exposure Mode", "Auto-Exposure Priority",
+ "Exposure Time (Absolute)", "Exposure Time (Relative)", "Focus (Absolute)",
+ "Focus (Relative)", "Iris (Absolute)", "Iris (Relative)", "Zoom (Absolute)",
+ "Zoom (Relative)", "PanTilt (Absolute)", "PanTilt (Relative)",
+ "Roll (Absolute)", "Roll (Relative)", "Reserved", "Reserved", "Focus, Auto",
+ "Privacy", "Focus, Simple", "Window", "Region of Interest"
+ };
+ static const char * const enctrlnames[] = {
+ "Select Layer", "Profile and Toolset", "Video Resolution", "Minimum Frame Interval",
+ "Slice Mode", "Rate Control Mode", "Average Bit Rate", "CPB Size", "Peak Bit Rate",
+ "Quantization Parameter", "Synchronization and Long-Term Reference Frame",
+ "Long-Term Buffer", "Picture Long-Term Reference", "LTR Validation",
+ "Level IDC", "SEI Message", "QP Range", "Priority ID", "Start or Stop Layer/View",
+ "Error Resiliency"
+ };
+ static const char * const stdnames[] = {
+ "None", "NTSC - 525/60", "PAL - 625/50", "SECAM - 625/50",
+ "NTSC - 625/50", "PAL - 525/60" };
+ unsigned int i, ctrls, stds, n, p, termt, freq;
+ char *term = NULL, termts[128];
+
+ if (buf[1] != USB_DT_CS_INTERFACE)
+ printf(" Warning: Invalid descriptor\n");
+ else if (buf[0] < 3)
+ printf(" Warning: Descriptor too short\n");
+ printf(" VideoControl Interface Descriptor:\n"
+ " bLength %5u\n"
+ " bDescriptorType %5u\n"
+ " bDescriptorSubtype %5u ",
+ buf[0], buf[1], buf[2]);
+ switch (buf[2]) {
+ case 0x01: /* HEADER */
+ printf("(HEADER)\n");
+ n = buf[11];
+ if (buf[0] < 12+n)
+ printf(" Warning: Descriptor too short\n");
+ freq = buf[7] | (buf[8] << 8) | (buf[9] << 16) | (buf[10] << 24);
+ printf(" bcdUVC %2x.%02x\n"
+ " wTotalLength 0x%04x\n"
+ " dwClockFrequency %5u.%06uMHz\n"
+ " bInCollection %5u\n",
+ buf[4], buf[3], buf[5] | (buf[6] << 8), freq / 1000000,
+ freq % 1000000, n);
+ for (i = 0; i < n; i++)
+ printf(" baInterfaceNr(%2u) %5u\n", i, buf[12+i]);
+ dump_junk(buf, " ", 12+n);
+ break;
+
+ case 0x02: /* INPUT_TERMINAL */
+ printf("(INPUT_TERMINAL)\n");
+ term = get_dev_string(dev, buf[7]);
+ termt = buf[4] | (buf[5] << 8);
+ n = termt == 0x0201 ? 7 : 0;
+ get_videoterminal_string(termts, sizeof(termts), termt);
+ if (buf[0] < 8 + n)
+ printf(" Warning: Descriptor too short\n");
+ printf(" bTerminalID %5u\n"
+ " wTerminalType 0x%04x %s\n"
+ " bAssocTerminal %5u\n",
+ buf[3], termt, termts, buf[6]);
+ printf(" iTerminal %5u %s\n",
+ buf[7], term);
+ if (termt == 0x0201) {
+ n += buf[14];
+ printf(" wObjectiveFocalLengthMin %5u\n"
+ " wObjectiveFocalLengthMax %5u\n"
+ " wOcularFocalLength %5u\n"
+ " bControlSize %5u\n",
+ buf[8] | (buf[9] << 8), buf[10] | (buf[11] << 8),
+ buf[12] | (buf[13] << 8), buf[14]);
+ ctrls = 0;
+ for (i = 0; i < 3 && i < buf[14]; i++)
+ ctrls = (ctrls << 8) | buf[8+n-i-1];
+ printf(" bmControls 0x%08x\n", ctrls);
+ if (protocol == USB_VIDEO_PROTOCOL_15) {
+ for (i = 0; i < 22; i++)
+ if ((ctrls >> i) & 1)
+ printf(" %s\n", camctrlnames[i]);
+ }
+ else {
+ for (i = 0; i < 19; i++)
+ if ((ctrls >> i) & 1)
+ printf(" %s\n", camctrlnames[i]);
+ }
+ }
+ dump_junk(buf, " ", 8+n);
+ break;
+
+ case 0x03: /* OUTPUT_TERMINAL */
+ printf("(OUTPUT_TERMINAL)\n");
+ term = get_dev_string(dev, buf[8]);
+ termt = buf[4] | (buf[5] << 8);
+ get_videoterminal_string(termts, sizeof(termts), termt);
+ if (buf[0] < 9)
+ printf(" Warning: Descriptor too short\n");
+ printf(" bTerminalID %5u\n"
+ " wTerminalType 0x%04x %s\n"
+ " bAssocTerminal %5u\n"
+ " bSourceID %5u\n"
+ " iTerminal %5u %s\n",
+ buf[3], termt, termts, buf[6], buf[7], buf[8], term);
+ dump_junk(buf, " ", 9);
+ break;
+
+ case 0x04: /* SELECTOR_UNIT */
+ printf("(SELECTOR_UNIT)\n");
+ p = buf[4];
+ if (buf[0] < 6+p)
+ printf(" Warning: Descriptor too short\n");
+ term = get_dev_string(dev, buf[5+p]);
+
+ printf(" bUnitID %5u\n"
+ " bNrInPins %5u\n",
+ buf[3], p);
+ for (i = 0; i < p; i++)
+ printf(" baSource(%2u) %5u\n", i, buf[5+i]);
+ printf(" iSelector %5u %s\n",
+ buf[5+p], term);
+ dump_junk(buf, " ", 6+p);
+ break;
+
+ case 0x05: /* PROCESSING_UNIT */
+ printf("(PROCESSING_UNIT)\n");
+ n = buf[7];
+ term = get_dev_string(dev, buf[8+n]);
+ if (buf[0] < 10+n)
+ printf(" Warning: Descriptor too short\n");
+ printf(" bUnitID %5u\n"
+ " bSourceID %5u\n"
+ " wMaxMultiplier %5u\n"
+ " bControlSize %5u\n",
+ buf[3], buf[4], buf[5] | (buf[6] << 8), n);
+ ctrls = 0;
+ for (i = 0; i < 3 && i < n; i++)
+ ctrls = (ctrls << 8) | buf[8+n-i-1];
+ printf(" bmControls 0x%08x\n", ctrls);
+ if (protocol == USB_VIDEO_PROTOCOL_15) {
+ for (i = 0; i < 19; i++)
+ if ((ctrls >> i) & 1)
+ printf(" %s\n", ctrlnames[i]);
+ }
+ else {
+ for (i = 0; i < 18; i++)
+ if ((ctrls >> i) & 1)
+ printf(" %s\n", ctrlnames[i]);
+ }
+ stds = buf[9+n];
+ printf(" iProcessing %5u %s\n"
+ " bmVideoStandards 0x%02x\n", buf[8+n], term, stds);
+ for (i = 0; i < 6; i++)
+ if ((stds >> i) & 1)
+ printf(" %s\n", stdnames[i]);
+ break;
+
+ case 0x06: /* EXTENSION_UNIT */
+ printf("(EXTENSION_UNIT)\n");
+ p = buf[21];
+ n = buf[22+p];
+ term = get_dev_string(dev, buf[23+p+n]);
+ if (buf[0] < 24+p+n)
+ printf(" Warning: Descriptor too short\n");
+ printf(" bUnitID %5u\n"
+ " guidExtensionCode %s\n"
+ " bNumControls %5u\n"
+ " bNrInPins %5u\n",
+ buf[3], get_guid(&buf[4]), buf[20], buf[21]);
+ for (i = 0; i < p; i++)
+ printf(" baSourceID(%2u) %5u\n", i, buf[22+i]);
+ printf(" bControlSize %5u\n", buf[22+p]);
+ for (i = 0; i < n; i++)
+ printf(" bmControls(%2u) 0x%02x\n", i, buf[23+p+i]);
+ printf(" iExtension %5u %s\n",
+ buf[23+p+n], term);
+ dump_junk(buf, " ", 24+p+n);
+ break;
+
+ case 0x07: /* ENCODING UNIT */
+ printf("(ENCODING UNIT)\n");
+ term = get_dev_string(dev, buf[5]);
+ if (buf[0] < 13)
+ printf(" Warning: Descriptor too short\n");
+ printf(" bUnitID %5u\n"
+ " bSourceID %5u\n"
+ " iEncoding %5u %s\n"
+ " bControlSize %5u\n",
+ buf[3], buf[4], buf[5], term, buf[6]);
+ ctrls = 0;
+ for (i = 0; i < 3; i++)
+ ctrls = (ctrls << 8) | buf[9-i];
+ printf(" bmControls 0x%08x\n", ctrls);
+ for (i = 0; i < 20; i++)
+ if ((ctrls >> i) & 1)
+ printf(" %s\n", enctrlnames[i]);
+ for (i = 0; i< 3; i++)
+ ctrls = (ctrls << 8) | buf[12-i];
+ printf(" bmControlsRuntime 0x%08x\n", ctrls);
+ for (i = 0; i < 20; i++)
+ if ((ctrls >> i) & 1)
+ printf(" %s\n", enctrlnames[i]);
+ break;
+
+ default:
+ printf("(unknown)\n"
+ " Invalid desc subtype:");
+ dump_bytes(buf+3, buf[0]-3);
+ break;
+ }
+
+ free(term);
+}
+
+static void dump_videostreaming_interface(const unsigned char *buf)
+{
+ static const char * const colorPrims[] = { "Unspecified", "BT.709,sRGB",
+ "BT.470-2 (M)", "BT.470-2 (B,G)", "SMPTE 170M", "SMPTE 240M" };
+ static const char * const transferChars[] = { "Unspecified", "BT.709",
+ "BT.470-2 (M)", "BT.470-2 (B,G)", "SMPTE 170M", "SMPTE 240M",
+ "Linear", "sRGB"};
+ static const char * const matrixCoeffs[] = { "Unspecified", "BT.709",
+ "FCC", "BT.470-2 (B,G)", "SMPTE 170M (BT.601)", "SMPTE 240M" };
+ unsigned int i, m, n, p, flags, len;
+
+ if (buf[1] != USB_DT_CS_INTERFACE)
+ printf(" Warning: Invalid descriptor\n");
+ else if (buf[0] < 3)
+ printf(" Warning: Descriptor too short\n");
+ printf(" VideoStreaming Interface Descriptor:\n"
+ " bLength %5u\n"
+ " bDescriptorType %5u\n"
+ " bDescriptorSubtype %5u ",
+ buf[0], buf[1], buf[2]);
+ switch (buf[2]) {
+ case 0x01: /* INPUT_HEADER */
+ printf("(INPUT_HEADER)\n");
+ p = buf[3];
+ n = buf[12];
+ if (buf[0] < 13+p*n)
+ printf(" Warning: Descriptor too short\n");
+ printf(" bNumFormats %5u\n"
+ " wTotalLength 0x%04x\n"
+ " bEndpointAddress 0x%02x EP %u %s\n"
+ " bmInfo %5u\n"
+ " bTerminalLink %5u\n"
+ " bStillCaptureMethod %5u\n"
+ " bTriggerSupport %5u\n"
+ " bTriggerUsage %5u\n"
+ " bControlSize %5u\n",
+ p, buf[4] | (buf[5] << 8),
+ buf[6], buf[6] & 0x0f, (buf[6] & 0x80) ? "IN" : "OUT",
+ buf[7], buf[8], buf[9], buf[10], buf[11], n);
+ for (i = 0; i < p; i++)
+ printf(
+ " bmaControls(%2u) %5u\n",
+ i, buf[13+i*n]);
+ dump_junk(buf, " ", 13+p*n);
+ break;
+
+ case 0x02: /* OUTPUT_HEADER */
+ printf("(OUTPUT_HEADER)\n");
+ p = buf[3];
+ n = buf[8];
+ if (buf[0] < 9+p*n)
+ printf(" Warning: Descriptor too short\n");
+ printf(" bNumFormats %5u\n"
+ " wTotalLength 0x%04x\n"
+ " bEndpointAddress 0x%02x EP %u %s\n"
+ " bTerminalLink %5u\n"
+ " bControlSize %5u\n",
+ p, buf[4] | (buf[5] << 8),
+ buf[6], buf[6] & 0x0f, (buf[6] & 0x80) ? "IN" : "OUT",
+ buf[7], n);
+ for (i = 0; i < p; i++)
+ printf(
+ " bmaControls(%2u) %5u\n",
+ i, buf[9+i*n]);
+ dump_junk(buf, " ", 9+p*n);
+ break;
+
+ case 0x03: /* STILL_IMAGE_FRAME */
+ printf("(STILL_IMAGE_FRAME)\n");
+ n = buf[4];
+ m = buf[5+4*n];
+ if (buf[0] < 6+4*n+m)
+ printf(" Warning: Descriptor too short\n");
+ printf(" bEndpointAddress 0x%02x EP %u %s\n"
+ " bNumImageSizePatterns %3u\n",
+ buf[3], buf[3] & 0x0f, (buf[3] & 0x80) ? "IN" : "OUT", n);
+ for (i = 0; i < n; i++)
+ printf(" wWidth(%2u) %5u\n"
+ " wHeight(%2u) %5u\n",
+ i, buf[5+4*i] | (buf[6+4*i] << 8),
+ i, buf[7+4*i] | (buf[8+4*i] << 8));
+ printf(" bNumCompressionPatterns %3u\n", m);
+ for (i = 0; i < m; i++)
+ printf(" bCompression(%2u) %5u\n",
+ i, buf[6+4*n+i]);
+ dump_junk(buf, " ", 6+4*n+m);
+ break;
+
+ case 0x04: /* FORMAT_UNCOMPRESSED */
+ case 0x10: /* FORMAT_FRAME_BASED */
+ if (buf[2] == 0x04) {
+ printf("(FORMAT_UNCOMPRESSED)\n");
+ len = 27;
+ } else {
+ printf("(FORMAT_FRAME_BASED)\n");
+ len = 28;
+ }
+ if (buf[0] < len)
+ printf(" Warning: Descriptor too short\n");
+ flags = buf[25];
+ printf(" bFormatIndex %5u\n"
+ " bNumFrameDescriptors %5u\n"
+ " guidFormat %s\n"
+ " bBitsPerPixel %5u\n"
+ " bDefaultFrameIndex %5u\n"
+ " bAspectRatioX %5u\n"
+ " bAspectRatioY %5u\n"
+ " bmInterlaceFlags 0x%02x\n",
+ buf[3], buf[4], get_guid(&buf[5]), buf[21], buf[22],
+ buf[23], buf[24], flags);
+ printf(" Interlaced stream or variable: %s\n",
+ (flags & (1 << 0)) ? "Yes" : "No");
+ printf(" Fields per frame: %u fields\n",
+ (flags & (1 << 1)) ? 1 : 2);
+ printf(" Field 1 first: %s\n",
+ (flags & (1 << 2)) ? "Yes" : "No");
+ printf(" Field pattern: ");
+ switch ((flags >> 4) & 0x03) {
+ case 0:
+ printf("Field 1 only\n");
+ break;
+ case 1:
+ printf("Field 2 only\n");
+ break;
+ case 2:
+ printf("Regular pattern of fields 1 and 2\n");
+ break;
+ case 3:
+ printf("Random pattern of fields 1 and 2\n");
+ break;
+ }
+ printf(" bCopyProtect %5u\n", buf[26]);
+ if (buf[2] == 0x10)
+ printf(" bVariableSize %5u\n", buf[27]);
+ dump_junk(buf, " ", len);
+ break;
+
+ case 0x05: /* FRAME UNCOMPRESSED */
+ case 0x07: /* FRAME_MJPEG */
+ case 0x11: /* FRAME_FRAME_BASED */
+ if (buf[2] == 0x05) {
+ printf("(FRAME_UNCOMPRESSED)\n");
+ n = 25;
+ } else if (buf[2] == 0x07) {
+ printf("(FRAME_MJPEG)\n");
+ n = 25;
+ } else {
+ printf("(FRAME_FRAME_BASED)\n");
+ n = 21;
+ }
+ len = (buf[n] != 0) ? (26+buf[n]*4) : 38;
+ if (buf[0] < len)
+ printf(" Warning: Descriptor too short\n");
+ flags = buf[4];
+ printf(" bFrameIndex %5u\n"
+ " bmCapabilities 0x%02x\n",
+ buf[3], flags);
+ printf(" Still image %ssupported\n",
+ (flags & (1 << 0)) ? "" : "un");
+ if (flags & (1 << 1))
+ printf(" Fixed frame-rate\n");
+ printf(" wWidth %5u\n"
+ " wHeight %5u\n"
+ " dwMinBitRate %9u\n"
+ " dwMaxBitRate %9u\n",
+ buf[5] | (buf[6] << 8), buf[7] | (buf[8] << 8),
+ buf[9] | (buf[10] << 8) | (buf[11] << 16) | (buf[12] << 24),
+ buf[13] | (buf[14] << 8) | (buf[15] << 16) | (buf[16] << 24));
+ if (buf[2] == 0x11)
+ printf(" dwDefaultFrameInterval %9u\n"
+ " bFrameIntervalType %5u\n"
+ " dwBytesPerLine %9u\n",
+ buf[17] | (buf[18] << 8) | (buf[19] << 16) | (buf[20] << 24),
+ buf[21],
+ buf[22] | (buf[23] << 8) | (buf[24] << 16) | (buf[25] << 24));
+ else
+ printf(" dwMaxVideoFrameBufferSize %9u\n"
+ " dwDefaultFrameInterval %9u\n"
+ " bFrameIntervalType %5u\n",
+ buf[17] | (buf[18] << 8) | (buf[19] << 16) | (buf[20] << 24),
+ buf[21] | (buf[22] << 8) | (buf[23] << 16) | (buf[24] << 24),
+ buf[25]);
+ if (buf[n] == 0)
+ printf(" dwMinFrameInterval %9u\n"
+ " dwMaxFrameInterval %9u\n"
+ " dwFrameIntervalStep %9u\n",
+ buf[26] | (buf[27] << 8) | (buf[28] << 16) | (buf[29] << 24),
+ buf[30] | (buf[31] << 8) | (buf[32] << 16) | (buf[33] << 24),
+ buf[34] | (buf[35] << 8) | (buf[36] << 16) | (buf[37] << 24));
+ else
+ for (i = 0; i < buf[n]; i++)
+ printf(" dwFrameInterval(%2u) %9u\n",
+ i, buf[26+4*i] | (buf[27+4*i] << 8) |
+ (buf[28+4*i] << 16) | (buf[29+4*i] << 24));
+ dump_junk(buf, " ", len);
+ break;
+
+ case 0x06: /* FORMAT_MJPEG */
+ printf("(FORMAT_MJPEG)\n");
+ if (buf[0] < 11)
+ printf(" Warning: Descriptor too short\n");
+ flags = buf[5];
+ printf(" bFormatIndex %5u\n"
+ " bNumFrameDescriptors %5u\n"
+ " bFlags %5u\n",
+ buf[3], buf[4], flags);
+ printf(" Fixed-size samples: %s\n",
+ (flags & (1 << 0)) ? "Yes" : "No");
+ flags = buf[9];
+ printf(" bDefaultFrameIndex %5u\n"
+ " bAspectRatioX %5u\n"
+ " bAspectRatioY %5u\n"
+ " bmInterlaceFlags 0x%02x\n",
+ buf[6], buf[7], buf[8], flags);
+ printf(" Interlaced stream or variable: %s\n",
+ (flags & (1 << 0)) ? "Yes" : "No");
+ printf(" Fields per frame: %u fields\n",
+ (flags & (1 << 1)) ? 2 : 1);
+ printf(" Field 1 first: %s\n",
+ (flags & (1 << 2)) ? "Yes" : "No");
+ printf(" Field pattern: ");
+ switch ((flags >> 4) & 0x03) {
+ case 0:
+ printf("Field 1 only\n");
+ break;
+ case 1:
+ printf("Field 2 only\n");
+ break;
+ case 2:
+ printf("Regular pattern of fields 1 and 2\n");
+ break;
+ case 3:
+ printf("Random pattern of fields 1 and 2\n");
+ break;
+ }
+ printf(" bCopyProtect %5u\n", buf[10]);
+ dump_junk(buf, " ", 11);
+ break;
+
+ case 0x0a: /* FORMAT_MPEG2TS */
+ printf("(FORMAT_MPEG2TS)\n");
+ len = buf[0] < 23 ? 7 : 23;
+ if (buf[0] < len)
+ printf(" Warning: Descriptor too short\n");
+ printf(" bFormatIndex %5u\n"
+ " bDataOffset %5u\n"
+ " bPacketLength %5u\n"
+ " bStrideLength %5u\n",
+ buf[3], buf[4], buf[5], buf[6]);
+ if (len > 7)
+ printf(" guidStrideFormat %s\n",
+ get_guid(&buf[7]));
+ dump_junk(buf, " ", len);
+ break;
+
+ case 0x0d: /* COLORFORMAT */
+ printf("(COLORFORMAT)\n");
+ if (buf[0] < 6)
+ printf(" Warning: Descriptor too short\n");
+ printf(" bColorPrimaries %5u (%s)\n",
+ buf[3], (buf[3] <= 5) ? colorPrims[buf[3]] : "Unknown");
+ printf(" bTransferCharacteristics %5u (%s)\n",
+ buf[4], (buf[4] <= 7) ? transferChars[buf[4]] : "Unknown");
+ printf(" bMatrixCoefficients %5u (%s)\n",
+ buf[5], (buf[5] <= 5) ? matrixCoeffs[buf[5]] : "Unknown");
+ dump_junk(buf, " ", 6);
+ break;
+
+ case 0x12: /* FORMAT_STREAM_BASED */
+ printf("(FORMAT_STREAM_BASED)\n");
+ if (buf[0] != 24)
+ printf(" Warning: Incorrect descriptor length\n");
+
+ printf(" bFormatIndex %5u\n"
+ " guidFormat %s\n"
+ " dwPacketLength %7u\n",
+ buf[3], get_guid(&buf[4]), buf[20]);
+ dump_junk(buf, " ", 24);
+ break;
+
+ default:
+ printf(" Invalid desc subtype:");
+ dump_bytes(buf+3, buf[0]-3);
+ break;
+ }
+}
+
+static void dump_dfu_interface(const unsigned char *buf)
+{
+ if (buf[1] != USB_DT_CS_DEVICE)
+ printf(" Warning: Invalid descriptor\n");
+ else if (buf[0] < 7)
+ printf(" Warning: Descriptor too short\n");
+ printf(" Device Firmware Upgrade Interface Descriptor:\n"
+ " bLength %5u\n"
+ " bDescriptorType %5u\n"
+ " bmAttributes %5u\n",
+ buf[0], buf[1], buf[2]);
+ if (buf[2] & 0xf0)
+ printf(" (unknown attributes!)\n");
+ printf(" Will %sDetach\n", (buf[2] & 0x08) ? "" : "Not ");
+ printf(" Manifestation %s\n", (buf[2] & 0x04) ? "Tolerant" : "Intolerant");
+ printf(" Upload %s\n", (buf[2] & 0x02) ? "Supported" : "Unsupported");
+ printf(" Download %s\n", (buf[2] & 0x01) ? "Supported" : "Unsupported");
+ printf(" wDetachTimeout %5u milliseconds\n"
+ " wTransferSize %5u bytes\n",
+ buf[3] | (buf[4] << 8), buf[5] | (buf[6] << 8));
+
+ /* DFU 1.0 defines no version code, DFU 1.1 does */
+ if (buf[0] < 9)
+ return;
+ printf(" bcdDFUVersion %x.%02x\n",
+ buf[8], buf[7]);
+}
+
+static void dump_hub(const char *prefix, const unsigned char *p, int tt_type)
+{
+ unsigned int l, i, j;
+ unsigned int offset;
+ unsigned int wHubChar = (p[4] << 8) | p[3];
+
+ printf("%sHub Descriptor:\n", prefix);
+ printf("%s bLength %3u\n", prefix, p[0]);
+ printf("%s bDescriptorType %3u\n", prefix, p[1]);
+ printf("%s nNbrPorts %3u\n", prefix, p[2]);
+ printf("%s wHubCharacteristic 0x%04x\n", prefix, wHubChar);
+ switch (wHubChar & 0x03) {
+ case 0:
+ printf("%s Ganged power switching\n", prefix);
+ break;
+ case 1:
+ printf("%s Per-port power switching\n", prefix);
+ break;
+ default:
+ printf("%s No power switching (usb 1.0)\n", prefix);
+ break;
+ }
+ if (wHubChar & 0x04)
+ printf("%s Compound device\n", prefix);
+ switch ((wHubChar >> 3) & 0x03) {
+ case 0:
+ printf("%s Ganged overcurrent protection\n", prefix);
+ break;
+ case 1:
+ printf("%s Per-port overcurrent protection\n", prefix);
+ break;
+ default:
+ printf("%s No overcurrent protection\n", prefix);
+ break;
+ }
+ /* USB 3.0 hubs don't have TTs. */
+ if (tt_type >= 1 && tt_type < 3) {
+ l = (wHubChar >> 5) & 0x03;
+ printf("%s TT think time %d FS bits\n", prefix, (l + 1) * 8);
+ }
+ /* USB 3.0 hubs don't have port indicators. Sad face. */
+ if (tt_type != 3 && wHubChar & (1<<7))
+ printf("%s Port indicators\n", prefix);
+ printf("%s bPwrOn2PwrGood %3u * 2 milli seconds\n", prefix, p[5]);
+
+ /* USB 3.0 hubs report current in units of aCurrentUnit, or 4 mA */
+ if (tt_type == 3)
+ printf("%s bHubContrCurrent %4u milli Ampere\n",
+ prefix, p[6]*4);
+ else
+ printf("%s bHubContrCurrent %3u milli Ampere\n",
+ prefix, p[6]);
+
+ if (tt_type == 3) {
+ printf("%s bHubDecLat 0.%1u micro seconds\n",
+ prefix, p[7]);
+ printf("%s wHubDelay %4u nano seconds\n",
+ prefix, (p[8] << 4) +(p[7]));
+ offset = 10;
+ } else {
+ offset = 7;
+ }
+
+ l = (p[2] >> 3) + 1; /* this determines the variable number of bytes following */
+ if (l > HUB_STATUS_BYTELEN)
+ l = HUB_STATUS_BYTELEN;
+ printf("%s DeviceRemovable ", prefix);
+ for (i = 0; i < l; i++)
+ printf(" 0x%02x", p[offset+i]);
+
+ if (tt_type != 3) {
+ printf("\n%s PortPwrCtrlMask ", prefix);
+ for (j = 0; j < l; j++)
+ printf(" 0x%02x", p[offset+i+j]);
+ }
+ printf("\n");
+}
+
+static void dump_ccid_device(const unsigned char *buf)
+{
+ unsigned int us;
+
+ if (buf[0] < 54) {
+ printf(" Warning: Descriptor too short\n");
+ return;
+ }
+ printf(" ChipCard Interface Descriptor:\n"
+ " bLength %5u\n"
+ " bDescriptorType %5u\n"
+ " bcdCCID %2x.%02x",
+ buf[0], buf[1], buf[3], buf[2]);
+ if (buf[3] != 1 || buf[2] != 0)
+ fputs(" (Warning: Only accurate for version 1.0)", stdout);
+ putchar('\n');
+
+ printf(" nMaxSlotIndex %5u\n"
+ " bVoltageSupport %5u %s%s%s\n",
+ buf[4],
+ buf[5],
+ (buf[5] & 1) ? "5.0V " : "",
+ (buf[5] & 2) ? "3.0V " : "",
+ (buf[5] & 4) ? "1.8V " : "");
+
+ us = convert_le_u32 (buf+6);
+ printf(" dwProtocols %5u ", us);
+ if ((us & 1))
+ fputs(" T=0", stdout);
+ if ((us & 2))
+ fputs(" T=1", stdout);
+ if ((us & ~3))
+ fputs(" (Invalid values detected)", stdout);
+ putchar('\n');
+
+ us = convert_le_u32(buf+10);
+ printf(" dwDefaultClock %5u\n", us);
+ us = convert_le_u32(buf+14);
+ printf(" dwMaxiumumClock %5u\n", us);
+ printf(" bNumClockSupported %5u\n", buf[18]);
+ us = convert_le_u32(buf+19);
+ printf(" dwDataRate %7u bps\n", us);
+ us = convert_le_u32(buf+23);
+ printf(" dwMaxDataRate %7u bps\n", us);
+ printf(" bNumDataRatesSupp. %5u\n", buf[27]);
+
+ us = convert_le_u32(buf+28);
+ printf(" dwMaxIFSD %5u\n", us);
+
+ us = convert_le_u32(buf+32);
+ printf(" dwSyncProtocols %08X ", us);
+ if ((us&1))
+ fputs(" 2-wire", stdout);
+ if ((us&2))
+ fputs(" 3-wire", stdout);
+ if ((us&4))
+ fputs(" I2C", stdout);
+ putchar('\n');
+
+ us = convert_le_u32(buf+36);
+ printf(" dwMechanical %08X ", us);
+ if ((us & 1))
+ fputs(" accept", stdout);
+ if ((us & 2))
+ fputs(" eject", stdout);
+ if ((us & 4))
+ fputs(" capture", stdout);
+ if ((us & 8))
+ fputs(" lock", stdout);
+ putchar('\n');
+
+ us = convert_le_u32(buf+40);
+ printf(" dwFeatures %08X\n", us);
+ if ((us & 0x0002))
+ fputs(" Auto configuration based on ATR\n", stdout);
+ if ((us & 0x0004))
+ fputs(" Auto activation on insert\n", stdout);
+ if ((us & 0x0008))
+ fputs(" Auto voltage selection\n", stdout);
+ if ((us & 0x0010))
+ fputs(" Auto clock change\n", stdout);
+ if ((us & 0x0020))
+ fputs(" Auto baud rate change\n", stdout);
+ if ((us & 0x0040))
+ fputs(" Auto parameter negotiation made by CCID\n", stdout);
+ else if ((us & 0x0080))
+ fputs(" Auto PPS made by CCID\n", stdout);
+ else if ((us & (0x0040 | 0x0080)))
+ fputs(" WARNING: conflicting negotiation features\n", stdout);
+
+ if ((us & 0x0100))
+ fputs(" CCID can set ICC in clock stop mode\n", stdout);
+ if ((us & 0x0200))
+ fputs(" NAD value other than 0x00 accepted\n", stdout);
+ if ((us & 0x0400))
+ fputs(" Auto IFSD exchange\n", stdout);
+
+ if ((us & 0x00010000))
+ fputs(" TPDU level exchange\n", stdout);
+ else if ((us & 0x00020000))
+ fputs(" Short APDU level exchange\n", stdout);
+ else if ((us & 0x00040000))
+ fputs(" Short and extended APDU level exchange\n", stdout);
+ else if ((us & 0x00070000))
+ fputs(" WARNING: conflicting exchange levels\n", stdout);
+
+ us = convert_le_u32(buf+44);
+ printf(" dwMaxCCIDMsgLen %5u\n", us);
+
+ printf(" bClassGetResponse ");
+ if (buf[48] == 0xff)
+ fputs("echo\n", stdout);
+ else
+ printf(" %02X\n", buf[48]);
+
+ printf(" bClassEnvelope ");
+ if (buf[49] == 0xff)
+ fputs("echo\n", stdout);
+ else
+ printf(" %02X\n", buf[48]);
+
+ printf(" wlcdLayout ");
+ if (!buf[50] && !buf[51])
+ fputs("none\n", stdout);
+ else
+ printf("%u cols %u lines\n", buf[50], buf[51]);
+
+ printf(" bPINSupport %5u ", buf[52]);
+ if ((buf[52] & 1))
+ fputs(" verification", stdout);
+ if ((buf[52] & 2))
+ fputs(" modification", stdout);
+ putchar('\n');
+
+ printf(" bMaxCCIDBusySlots %5u\n", buf[53]);
+
+ if (buf[0] > 54) {
+ fputs(" junk ", stdout);
+ dump_bytes(buf+54, buf[0]-54);
+ }
+}
+
+/* ---------------------------------------------------------------------- */
+
+/*
+ * HID descriptor
+ */
+
+static void dump_report_desc(unsigned char *b, int l)
+{
+ unsigned int j, bsize, btag, btype, data = 0xffff, hut = 0xffff;
+ int i;
+ char *types[4] = { "Main", "Global", "Local", "reserved" };
+ char indent[] = " ";
+
+ printf(" Report Descriptor: (length is %d)\n", l);
+ for (i = 0; i < l; ) {
+ bsize = b[i] & 0x03;
+ if (bsize == 3)
+ bsize = 4;
+ btype = b[i] & (0x03 << 2);
+ btag = b[i] & ~0x03; /* 2 LSB bits encode length */
+ printf(" Item(%-6s): %s, data=", types[btype>>2],
+ names_reporttag(btag));
+ if (bsize > 0) {
+ printf(" [ ");
+ data = 0;
+ for (j = 0; j < bsize; j++) {
+ printf("0x%02x ", b[i+1+j]);
+ data += (b[i+1+j] << (8*j));
+ }
+ printf("] %d", data);
+ } else
+ printf("none");
+ printf("\n");
+ switch (btag) {
+ case 0x04: /* Usage Page */
+ printf("%s%s\n", indent, names_huts(data));
+ hut = data;
+ break;
+
+ case 0x08: /* Usage */
+ case 0x18: /* Usage Minimum */
+ case 0x28: /* Usage Maximum */
+ printf("%s%s\n", indent,
+ names_hutus((hut << 16) + data));
+ break;
+
+ case 0x54: /* Unit Exponent */
+ printf("%sUnit Exponent: %i\n", indent,
+ (signed char)data);
+ break;
+
+ case 0x64: /* Unit */
+ printf("%s", indent);
+ dump_unit(data, bsize);
+ break;
+
+ case 0xa0: /* Collection */
+ printf("%s", indent);
+ switch (data) {
+ case 0x00:
+ printf("Physical\n");
+ break;
+
+ case 0x01:
+ printf("Application\n");
+ break;
+
+ case 0x02:
+ printf("Logical\n");
+ break;
+
+ case 0x03:
+ printf("Report\n");
+ break;
+
+ case 0x04:
+ printf("Named Array\n");
+ break;
+
+ case 0x05:
+ printf("Usage Switch\n");
+ break;
+
+ case 0x06:
+ printf("Usage Modifier\n");
+ break;
+
+ default:
+ if (data & 0x80)
+ printf("Vendor defined\n");
+ else
+ printf("Reserved for future use.\n");
+ }
+ break;
+ case 0x80: /* Input */
+ case 0x90: /* Output */
+ case 0xb0: /* Feature */
+ printf("%s%s %s %s %s %s\n%s%s %s %s %s\n",
+ indent,
+ data & 0x01 ? "Constant" : "Data",
+ data & 0x02 ? "Variable" : "Array",
+ data & 0x04 ? "Relative" : "Absolute",
+ data & 0x08 ? "Wrap" : "No_Wrap",
+ data & 0x10 ? "Non_Linear" : "Linear",
+ indent,
+ data & 0x20 ? "No_Preferred_State" : "Preferred_State",
+ data & 0x40 ? "Null_State" : "No_Null_Position",
+ data & 0x80 ? "Volatile" : "Non_Volatile",
+ data & 0x100 ? "Buffered Bytes" : "Bitfield");
+ break;
+ }
+ i += 1 + bsize;
+ }
+}
+
+static void dump_printer_device(libusb_device_handle *dev,
+ const struct libusb_interface_descriptor *interface,
+ const unsigned char *buf)
+{
+ unsigned int i;
+ unsigned int n;
+
+ if (interface->bInterfaceProtocol != 0x04) /* IPP-over-USB */
+ return;
+
+ printf(" IPP Printer Descriptor:\n"
+ " bLength %5u\n"
+ " bDescriptorType %5u\n"
+ " bcdReleaseNumber %5u\n"
+ " bcdNumDescriptors %5u\n",
+ buf[0], buf[1], buf[2], buf[3]);
+
+ n = 4;
+ for (i = 0 ; i < buf[3] ; i++) {
+ switch (buf[n]) {
+ case 0x00: { /* Basic capabilities */
+ uint16_t caps = le16_to_cpu(*((uint16_t*)&buf[n+2]));
+ char *uuid = get_dev_string(dev, buf[n+5]);
+
+ printf(" iIPPVersionsSupported %5u\n", buf[n+4]);
+ printf(" iIPPPrinterUUID %5u %s\n", buf[n+5], uuid);
+ printf(" wBasicCapabilities 0x%04x ", caps);
+ if (caps & 0x01)
+ printf(" Print");
+ if (caps & 0x02)
+ printf(" Scan");
+ if (caps & 0x04)
+ printf(" Fax");
+ if (caps & 0x08)
+ printf(" Other");
+ if (caps & 0x10)
+ printf(" HTTP-over-USB");
+ if ((caps & 0x60) == 0x00)
+ printf(" No-Auth");
+ else if ((caps & 0x60) == 0x20)
+ printf(" Username-Auth");
+ else if ((caps & 0x60) == 0x40)
+ printf(" Reserved-Auth");
+ else if ((caps & 0x60) == 0x60)
+ printf(" Negotiable-Auth");
+ printf("\n");
+ free(uuid);
+ break;
+ }
+ default:
+ /* Vendor Specific, Ignore for now. */
+ printf(" UnknownCapabilities %5u %5u\n", buf[n], buf[n+1]);
+ break;
+ }
+ n += 2 + buf[n+1];
+ }
+}
+
+static void dump_hid_device(libusb_device_handle *dev,
+ const struct libusb_interface_descriptor *interface,
+ const unsigned char *buf)
+{
+ int i, len;
+ unsigned char dbuf[8192];
+
+ if (buf[1] != LIBUSB_DT_HID)
+ printf(" Warning: Invalid descriptor\n");
+ else if (buf[0] < 6+3*buf[5])
+ printf(" Warning: Descriptor too short\n");
+ printf(" HID Device Descriptor:\n"
+ " bLength %5u\n"
+ " bDescriptorType %5u\n"
+ " bcdHID %2x.%02x\n"
+ " bCountryCode %5u %s\n"
+ " bNumDescriptors %5u\n",
+ buf[0], buf[1], buf[3], buf[2], buf[4],
+ names_countrycode(buf[4]) ? : "Unknown", buf[5]);
+ for (i = 0; i < buf[5]; i++)
+ printf(" bDescriptorType %5u %s\n"
+ " wDescriptorLength %5u\n",
+ buf[6+3*i], names_hid(buf[6+3*i]),
+ buf[7+3*i] | (buf[8+3*i] << 8));
+ dump_junk(buf, " ", 6+3*buf[5]);
+ if (!do_report_desc)
+ return;
+
+ if (!dev) {
+ printf(" Report Descriptors: \n"
+ " ** UNAVAILABLE **\n");
+ return;
+ }
+
+ for (i = 0; i < buf[5]; i++) {
+ /* we are just interested in report descriptors*/
+ if (buf[6+3*i] != LIBUSB_DT_REPORT)
+ continue;
+ len = buf[7+3*i] | (buf[8+3*i] << 8);
+ if (len > (int)sizeof(dbuf)) {
+ printf("report descriptor too long\n");
+ continue;
+ }
+ if (libusb_claim_interface(dev, interface->bInterfaceNumber) == 0) {
+ int retries = 4;
+ int n = 0;
+ while (n < len && retries--)
+ n = usb_control_msg(dev,
+ LIBUSB_ENDPOINT_IN | LIBUSB_REQUEST_TYPE_STANDARD
+ | LIBUSB_RECIPIENT_INTERFACE,
+ LIBUSB_REQUEST_GET_DESCRIPTOR,
+ (LIBUSB_DT_REPORT << 8),
+ interface->bInterfaceNumber,
+ dbuf, len,
+ CTRL_TIMEOUT);
+
+ if (n > 0) {
+ if (n < len)
+ printf(" Warning: incomplete report descriptor\n");
+ dump_report_desc(dbuf, n);
+ } else {
+ printf(" Warning: can't get report descriptor, %s\n",
+ libusb_error_name(n));
+ }
+ libusb_release_interface(dev, interface->bInterfaceNumber);
+ } else {
+ /* recent Linuxes require claim() for RECIP_INTERFACE,
+ * so "rmmod hid" will often make these available.
+ */
+ printf(" Report Descriptors: \n"
+ " ** UNAVAILABLE **\n");
+ }
+ }
+}
+
+static char *
+dump_comm_descriptor(libusb_device_handle *dev, const unsigned char *buf, char *indent)
+{
+ int tmp;
+ char *str = NULL;
+ char *type;
+
+ switch (buf[2]) {
+ case 0:
+ type = "Header";
+ if (buf[0] != 5)
+ goto bad;
+ printf("%sCDC Header:\n"
+ "%s bcdCDC %x.%02x\n",
+ indent,
+ indent, buf[4], buf[3]);
+ break;
+ case 0x01: /* call management functional desc */
+ type = "Call Management";
+ if (buf[0] != 5)
+ goto bad;
+ printf("%sCDC Call Management:\n"
+ "%s bmCapabilities 0x%02x\n",
+ indent,
+ indent, buf[3]);
+ if (buf[3] & 0x01)
+ printf("%s call management\n", indent);
+ if (buf[3] & 0x02)
+ printf("%s use DataInterface\n", indent);
+ printf("%s bDataInterface %d\n", indent, buf[4]);
+ break;
+ case 0x02: /* acm functional desc */
+ type = "ACM";
+ if (buf[0] != 4)
+ goto bad;
+ printf("%sCDC ACM:\n"
+ "%s bmCapabilities 0x%02x\n",
+ indent,
+ indent, buf[3]);
+ if (buf[3] & 0x08)
+ printf("%s connection notifications\n", indent);
+ if (buf[3] & 0x04)
+ printf("%s sends break\n", indent);
+ if (buf[3] & 0x02)
+ printf("%s line coding and serial state\n", indent);
+ if (buf[3] & 0x01)
+ printf("%s get/set/clear comm features\n", indent);
+ break;
+#if 0
+ case 0x03: /* direct line management */
+ case 0x04: /* telephone ringer */
+ case 0x05: /* telephone call and line state reporting */
+#endif
+ case 0x06: /* union desc */
+ type = "Union";
+ if (buf[0] < 5)
+ goto bad;
+ printf("%sCDC Union:\n"
+ "%s bMasterInterface %d\n"
+ "%s bSlaveInterface ",
+ indent,
+ indent, buf[3],
+ indent);
+ for (tmp = 4; tmp < buf[0]; tmp++)
+ printf("%d ", buf[tmp]);
+ printf("\n");
+ break;
+ case 0x07: /* country selection functional desc */
+ type = "Country Selection";
+ if (buf[0] < 6 || (buf[0] & 1) != 0)
+ goto bad;
+ str = get_dev_string(dev, buf[3]);
+ printf("%sCountry Selection:\n"
+ "%s iCountryCodeRelDate %4d %s\n",
+ indent,
+ indent, buf[3], (buf[3] && *str) ? str : "(?\?)");
+ for (tmp = 4; tmp < buf[0]; tmp += 2) {
+ printf("%s wCountryCode 0x%02x%02x\n",
+ indent, buf[tmp], buf[tmp + 1]);
+ }
+ break;
+ case 0x08: /* telephone operational modes */
+ type = "Telephone Operations";
+ if (buf[0] != 4)
+ goto bad;
+ printf("%sCDC Telephone operations:\n"
+ "%s bmCapabilities 0x%02x\n",
+ indent,
+ indent, buf[3]);
+ if (buf[3] & 0x04)
+ printf("%s computer centric mode\n", indent);
+ if (buf[3] & 0x02)
+ printf("%s standalone mode\n", indent);
+ if (buf[3] & 0x01)
+ printf("%s simple mode\n", indent);
+ break;
+#if 0
+ case 0x09: /* USB terminal */
+#endif
+ case 0x0a: /* network channel terminal */
+ type = "Network Channel Terminal";
+ if (buf[0] != 7)
+ goto bad;
+ str = get_dev_string(dev, buf[4]);
+ printf("%sNetwork Channel Terminal:\n"
+ "%s bEntityId %3d\n"
+ "%s iName %3d %s\n"
+ "%s bChannelIndex %3d\n"
+ "%s bPhysicalInterface %3d\n",
+ indent,
+ indent, buf[3],
+ indent, buf[4], str,
+ indent, buf[5],
+ indent, buf[6]);
+ break;
+#if 0
+ case 0x0b: /* protocol unit */
+ case 0x0c: /* extension unit */
+ case 0x0d: /* multi-channel management */
+ case 0x0e: /* CAPI control management*/
+#endif
+ case 0x0f: /* ethernet functional desc */
+ type = "Ethernet";
+ if (buf[0] != 13)
+ goto bad;
+ str = get_dev_string(dev, buf[3]);
+ tmp = buf[7] << 8;
+ tmp |= buf[6]; tmp <<= 8;
+ tmp |= buf[5]; tmp <<= 8;
+ tmp |= buf[4];
+ printf("%sCDC Ethernet:\n"
+ "%s iMacAddress %10d %s\n"
+ "%s bmEthernetStatistics 0x%08x\n",
+ indent,
+ indent, buf[3], (buf[3] && *str) ? str : "(?\?)",
+ indent, tmp);
+ /* FIXME dissect ALL 28 bits */
+ printf("%s wMaxSegmentSize %10d\n"
+ "%s wNumberMCFilters 0x%04x\n"
+ "%s bNumberPowerFilters %10d\n",
+ indent, (buf[9]<<8)|buf[8],
+ indent, (buf[11]<<8)|buf[10],
+ indent, buf[12]);
+ break;
+#if 0
+ case 0x10: /* ATM networking */
+#endif
+ case 0x11: /* WHCM functional desc */
+ type = "WHCM version";
+ if (buf[0] != 5)
+ goto bad;
+ printf("%sCDC WHCM:\n"
+ "%s bcdVersion %x.%02x\n",
+ indent,
+ indent, buf[4], buf[3]);
+ break;
+ case 0x12: /* MDLM functional desc */
+ type = "MDLM";
+ if (buf[0] != 21)
+ goto bad;
+ printf("%sCDC MDLM:\n"
+ "%s bcdCDC %x.%02x\n"
+ "%s bGUID %s\n",
+ indent,
+ indent, buf[4], buf[3],
+ indent, get_guid(buf + 5));
+ break;
+ case 0x13: /* MDLM detail desc */
+ type = "MDLM detail";
+ if (buf[0] < 5)
+ goto bad;
+ printf("%sCDC MDLM detail:\n"
+ "%s bGuidDescriptorType %02x\n"
+ "%s bDetailData ",
+ indent,
+ indent, buf[3],
+ indent);
+ dump_bytes(buf + 4, buf[0] - 4);
+ break;
+ case 0x14: /* device management functional desc */
+ type = "Device Management";
+ if (buf[0] != 7)
+ goto bad;
+ printf("%sCDC Device Management:\n"
+ "%s bcdVersion %x.%02x\n"
+ "%s wMaxCommand %d\n",
+ indent,
+ indent, buf[4], buf[3],
+ indent, (buf[6] << 8) | buf[5]);
+ break;
+ case 0x15: /* OBEX functional desc */
+ type = "OBEX";
+ if (buf[0] != 5)
+ goto bad;
+ printf("%sCDC OBEX:\n"
+ "%s bcdVersion %x.%02x\n",
+ indent,
+ indent, buf[4], buf[3]);
+ break;
+ case 0x16: /* command set functional desc */
+ type = "Command Set";
+ if (buf[0] != 22)
+ goto bad;
+ str = get_dev_string(dev, buf[5]);
+ printf("%sCDC Command Set:\n"
+ "%s bcdVersion %x.%02x\n"
+ "%s iCommandSet %4d %s\n"
+ "%s bGUID %s\n",
+ indent,
+ indent, buf[4], buf[3],
+ indent, buf[5], (buf[5] && *str) ? str : "(?\?)",
+ indent, get_guid(buf + 6));
+ break;
+#if 0
+ case 0x17: /* command set detail desc */
+ case 0x18: /* telephone control model functional desc */
+#endif
+ case 0x1a: /* NCM functional desc */
+ type = "NCM";
+ if (buf[0] != 6)
+ goto bad;
+ printf("%sCDC NCM:\n"
+ "%s bcdNcmVersion %x.%02x\n"
+ "%s bmNetworkCapabilities 0x%02x\n",
+ indent,
+ indent, buf[4], buf[3],
+ indent, buf[5]);
+ if (buf[5] & 1<<5)
+ printf("%s 8-byte ntb input size\n", indent);
+ if (buf[5] & 1<<4)
+ printf("%s crc mode\n", indent);
+ if (buf[5] & 1<<3)
+ printf("%s max datagram size\n", indent);
+ if (buf[5] & 1<<2)
+ printf("%s encapsulated commands\n", indent);
+ if (buf[5] & 1<<1)
+ printf("%s net address\n", indent);
+ if (buf[5] & 1<<0)
+ printf("%s packet filter\n", indent);
+ break;
+ case 0x1b: /* MBIM functional desc */
+ type = "MBIM";
+ if (buf[0] != 12)
+ goto bad;
+ printf("%sCDC MBIM:\n"
+ "%s bcdMBIMVersion %x.%02x\n"
+ "%s wMaxControlMessage %d\n"
+ "%s bNumberFilters %d\n"
+ "%s bMaxFilterSize %d\n"
+ "%s wMaxSegmentSize %d\n"
+ "%s bmNetworkCapabilities 0x%02x\n",
+ indent,
+ indent, buf[4], buf[3],
+ indent, (buf[6] << 8) | buf[5],
+ indent, buf[7],
+ indent, buf[8],
+ indent, (buf[10] << 8) | buf[9],
+ indent, buf[11]);
+ if (buf[11] & 0x20)
+ printf("%s 8-byte ntb input size\n", indent);
+ if (buf[11] & 0x08)
+ printf("%s max datagram size\n", indent);
+ break;
+ case 0x1c: /* MBIM extended functional desc */
+ type = "MBIM Extended";
+ if (buf[0] != 8)
+ goto bad;
+ printf("%sCDC MBIM Extended:\n"
+ "%s bcdMBIMExtendedVersion %2x.%02x\n"
+ "%s bMaxOutstandingCommandMessages %3d\n"
+ "%s wMTU %5d\n",
+ indent,
+ indent, buf[4], buf[3],
+ indent, buf[5],
+ indent, buf[6] | (buf[7] << 8));
+ break;
+ default:
+ /* FIXME there are about a dozen more descriptor types */
+ printf("%sUNRECOGNIZED CDC: ", indent);
+ dump_bytes(buf, buf[0]);
+ return "unrecognized comm descriptor";
+ }
+
+ free(str);
+
+ return 0;
+
+bad:
+ printf("%sINVALID CDC (%s): ", indent, type);
+ dump_bytes(buf, buf[0]);
+ return "corrupt comm descriptor";
+}
+
+/* ---------------------------------------------------------------------- */
+
+static void do_hub(libusb_device_handle *fd, unsigned tt_type, unsigned speed,
+ bool has_ssp)
+{
+ unsigned char buf[7 /* base descriptor */
+ + 2 /* bitmasks */ * HUB_STATUS_BYTELEN];
+ int i, ret, value;
+ unsigned int link_state;
+ const char * const link_state_descriptions[] = {
+ "U0",
+ "U1",
+ "U2",
+ "suspend",
+ "SS.disabled",
+ "Rx.Detect",
+ "SS.Inactive",
+ "Polling",
+ "Recovery",
+ "Hot Reset",
+ "Compliance",
+ "Loopback",
+ };
+ bool is_ext_status = tt_type == 3 && speed >= 0x0310 && has_ssp;
+
+ /* USB 3.x hubs have a slightly different descriptor */
+ if (speed >= 0x0300)
+ value = 0x2A;
+ else
+ value = 0x29;
+
+ ret = usb_control_msg(fd,
+ LIBUSB_ENDPOINT_IN | LIBUSB_REQUEST_TYPE_CLASS | LIBUSB_RECIPIENT_DEVICE,
+ LIBUSB_REQUEST_GET_DESCRIPTOR,
+ value << 8, 0,
+ buf, sizeof buf, CTRL_TIMEOUT);
+ if (ret < 0) {
+ /* Linux returns EHOSTUNREACH for suspended devices */
+ if (errno != EHOSTUNREACH)
+ fprintf(stderr, "can't get hub descriptor, %s (%s)\n",
+ libusb_error_name(ret), strerror(errno));
+ return;
+ }
+ if (ret < 9 /* at least one port's bitmasks */) {
+ fprintf(stderr,
+ "incomplete hub descriptor, %d bytes\n",
+ ret);
+ return;
+ }
+ dump_hub("", buf, tt_type);
+
+ printf(" Hub Port Status:\n");
+ for (i = 0; i < buf[2]; i++) {
+ unsigned char status[8];
+
+ /* Request EXT_PORT_STATUS for USB 3.1 SuperSpeedPlus hubs,
+ PORT_STATUS otherwise */
+ ret = usb_control_msg(fd,
+ LIBUSB_ENDPOINT_IN | LIBUSB_REQUEST_TYPE_CLASS
+ | LIBUSB_RECIPIENT_OTHER,
+ LIBUSB_REQUEST_GET_STATUS,
+ is_ext_status ? 2 : 0, i + 1,
+ status, is_ext_status ? 8 : 4,
+ CTRL_TIMEOUT);
+ if (ret < 0) {
+ fprintf(stderr,
+ "cannot read port %d status, %s (%d)\n",
+ i + 1, strerror(errno), errno);
+ break;
+ }
+
+ printf(" Port %d: %02x%02x.%02x%02x", i + 1,
+ status[3], status[2],
+ status[1], status[0]);
+ /* CAPS are used to highlight "transient" states */
+ if (speed < 0x0300) {
+ printf("%s%s%s%s%s",
+ (status[2] & 0x10) ? " C_RESET" : "",
+ (status[2] & 0x08) ? " C_OC" : "",
+ (status[2] & 0x04) ? " C_SUSPEND" : "",
+ (status[2] & 0x02) ? " C_ENABLE" : "",
+ (status[2] & 0x01) ? " C_CONNECT" : "");
+ printf("%s%s%s%s%s%s%s%s%s%s%s\n",
+ (status[1] & 0x10) ? " indicator" : "",
+ (status[1] & 0x08) ? " test" : "",
+ (status[1] & 0x04) ? " highspeed" : "",
+ (status[1] & 0x02) ? " lowspeed" : "",
+ (status[1] & 0x01) ? " power" : "",
+ (status[0] & 0x20) ? " L1" : "",
+ (status[0] & 0x10) ? " RESET" : "",
+ (status[0] & 0x08) ? " oc" : "",
+ (status[0] & 0x04) ? " suspend" : "",
+ (status[0] & 0x02) ? " enable" : "",
+ (status[0] & 0x01) ? " connect" : "");
+ } else {
+ link_state = ((status[0] & 0xe0) >> 5) +
+ ((status[1] & 0x1) << 3);
+ printf("%s%s%s%s%s%s",
+ (status[2] & 0x80) ? " C_CONFIG_ERROR" : "",
+ (status[2] & 0x40) ? " C_LINK_STATE" : "",
+ (status[2] & 0x20) ? " C_BH_RESET" : "",
+ (status[2] & 0x10) ? " C_RESET" : "",
+ (status[2] & 0x08) ? " C_OC" : "",
+ (status[2] & 0x01) ? " C_CONNECT" : "");
+ printf("%s%s",
+ ((status[1] & 0x1C) == 0) ? " 5Gbps" : " Unknown Speed",
+ (status[1] & 0x02) ? " power" : "");
+ /* Link state is bits 8:5 */
+ if (link_state < (sizeof(link_state_descriptions) /
+ sizeof(*link_state_descriptions)))
+ printf(" %s", link_state_descriptions[link_state]);
+ printf("%s%s%s%s\n",
+ (status[0] & 0x10) ? " RESET" : "",
+ (status[0] & 0x08) ? " oc" : "",
+ (status[0] & 0x02) ? " enable" : "",
+ (status[0] & 0x01) ? " connect" : "");
+ }
+
+ if (is_ext_status && (status[0] & 0x01)) {
+ printf(" Ext Status: %02x%02x.%02x%02x\n",
+ status[7], status[6],
+ status[5], status[4]);
+ printf(" RX Speed Attribute ID: %d Lanes: %d\n",
+ status[4] & 0x0f, (status[5] & 0x0f)+1);
+ printf(" TX Speed Attribute ID: %d Lanes: %d\n",
+ (status[4] >> 4) & 0x0f, ((status[5] >> 4) & 0x0f)+1);
+ }
+ }
+}
+
+static void do_dualspeed(libusb_device_handle *fd)
+{
+ unsigned char buf[10];
+ char cls[128], subcls[128], proto[128];
+ int ret;
+
+ ret = usb_control_msg(fd,
+ LIBUSB_ENDPOINT_IN | LIBUSB_REQUEST_TYPE_STANDARD | LIBUSB_RECIPIENT_DEVICE,
+ LIBUSB_REQUEST_GET_DESCRIPTOR,
+ USB_DT_DEVICE_QUALIFIER << 8, 0,
+ buf, sizeof buf, CTRL_TIMEOUT);
+
+ /* We don't need to complain to the user if the device is claimed
+ * and we aren't allowed to access the device qualifier.
+ */
+ if (ret < 0 && errno != EPIPE) {
+ if (verblevel > 1 || errno != EAGAIN)
+ perror("can't get device qualifier");
+ }
+
+ /* all dual-speed devices have a qualifier */
+ if (ret != sizeof buf
+ || buf[0] != ret
+ || buf[1] != USB_DT_DEVICE_QUALIFIER)
+ return;
+
+ get_class_string(cls, sizeof(cls),
+ buf[4]);
+ get_subclass_string(subcls, sizeof(subcls),
+ buf[4], buf[5]);
+ get_protocol_string(proto, sizeof(proto),
+ buf[4], buf[5], buf[6]);
+ printf("Device Qualifier (for other device speed):\n"
+ " bLength %5u\n"
+ " bDescriptorType %5u\n"
+ " bcdUSB %2x.%02x\n"
+ " bDeviceClass %5u %s\n"
+ " bDeviceSubClass %5u %s\n"
+ " bDeviceProtocol %5u %s\n"
+ " bMaxPacketSize0 %5u\n"
+ " bNumConfigurations %5u\n",
+ buf[0], buf[1],
+ buf[3], buf[2],
+ buf[4], cls,
+ buf[5], subcls,
+ buf[6], proto,
+ buf[7], buf[8]);
+
+ /* FIXME also show the OTHER_SPEED_CONFIG descriptors */
+}
+
+static void do_debug(libusb_device_handle *fd)
+{
+ unsigned char buf[4];
+ int ret;
+
+ ret = usb_control_msg(fd,
+ LIBUSB_ENDPOINT_IN | LIBUSB_REQUEST_TYPE_STANDARD | LIBUSB_RECIPIENT_DEVICE,
+ LIBUSB_REQUEST_GET_DESCRIPTOR,
+ USB_DT_DEBUG << 8, 0,
+ buf, sizeof buf, CTRL_TIMEOUT);
+
+ /* We don't need to complain to the user if the device is claimed
+ * and we aren't allowed to access the debug descriptor.
+ */
+ if (ret < 0 && errno != EPIPE) {
+ if (verblevel > 1 || errno != EAGAIN)
+ perror("can't get debug descriptor");
+ }
+
+ /* some high speed devices are also "USB2 debug devices", meaning
+ * you can use them with some EHCI implementations as another kind
+ * of system debug channel: like JTAG, RS232, or a console.
+ */
+ if (ret != sizeof buf
+ || buf[0] != ret
+ || buf[1] != USB_DT_DEBUG)
+ return;
+
+ printf("Debug descriptor:\n"
+ " bLength %4u\n"
+ " bDescriptorType %4u\n"
+ " bDebugInEndpoint 0x%02x\n"
+ " bDebugOutEndpoint 0x%02x\n",
+ buf[0], buf[1],
+ buf[2], buf[3]);
+}
+
+static const unsigned char *find_otg(const unsigned char *buf, int buflen)
+{
+ if (!buf)
+ return 0;
+ while (buflen >= 3) {
+ if (buf[0] == 3 && buf[1] == USB_DT_OTG)
+ return buf;
+ if (buf[0] > buflen)
+ return 0;
+ buflen -= buf[0];
+ buf += buf[0];
+ }
+ return 0;
+}
+
+static int do_otg(struct libusb_config_descriptor *config)
+{
+ unsigned i, k;
+ int j;
+ const unsigned char *desc;
+
+ /* each config of an otg device has an OTG descriptor */
+ desc = find_otg(config->extra, config->extra_length);
+ for (i = 0; !desc && i < config->bNumInterfaces; i++) {
+ const struct libusb_interface *intf;
+
+ intf = &config->interface[i];
+ for (j = 0; !desc && j < intf->num_altsetting; j++) {
+ const struct libusb_interface_descriptor *alt;
+
+ alt = &intf->altsetting[j];
+ desc = find_otg(alt->extra, alt->extra_length);
+ for (k = 0; !desc && k < alt->bNumEndpoints; k++) {
+ const struct libusb_endpoint_descriptor *ep;
+
+ ep = &alt->endpoint[k];
+ desc = find_otg(ep->extra, ep->extra_length);
+ }
+ }
+ }
+ if (!desc)
+ return 0;
+
+ printf("OTG Descriptor:\n"
+ " bLength %3u\n"
+ " bDescriptorType %3u\n"
+ " bmAttributes 0x%02x\n"
+ "%s%s",
+ desc[0], desc[1], desc[2],
+ (desc[2] & 0x01)
+ ? " SRP (Session Request Protocol)\n" : "",
+ (desc[2] & 0x02)
+ ? " HNP (Host Negotiation Protocol)\n" : "");
+ return 1;
+}
+
+static void
+dump_device_status(libusb_device_handle *fd, int otg, int super_speed)
+{
+ unsigned char status[8];
+ int ret;
+
+ ret = usb_control_msg(fd, LIBUSB_ENDPOINT_IN | LIBUSB_REQUEST_TYPE_STANDARD
+ | LIBUSB_RECIPIENT_DEVICE,
+ LIBUSB_REQUEST_GET_STATUS,
+ 0, 0,
+ status, 2,
+ CTRL_TIMEOUT);
+ if (ret < 0) {
+ fprintf(stderr,
+ "cannot read device status, %s (%d)\n",
+ strerror(errno), errno);
+ return;
+ }
+
+ printf("Device Status: 0x%02x%02x\n",
+ status[1], status[0]);
+ if (status[0] & (1 << 0))
+ printf(" Self Powered\n");
+ else
+ printf(" (Bus Powered)\n");
+ if (status[0] & (1 << 1))
+ printf(" Remote Wakeup Enabled\n");
+ if (super_speed) {
+ if (status[0] & (1 << 2))
+ printf(" U1 Enabled\n");
+ if (status[0] & (1 << 3))
+ printf(" U2 Enabled\n");
+ if (status[0] & (1 << 4))
+ printf(" Latency Tolerance Messaging (LTM) Enabled\n");
+ }
+ /* if both HOST and DEVICE support OTG */
+ if (otg) {
+ if (status[0] & (1 << 3))
+ printf(" HNP Enabled\n");
+ if (status[0] & (1 << 4))
+ printf(" HNP Capable\n");
+ if (status[0] & (1 << 5))
+ printf(" ALT port is HNP Capable\n");
+ }
+ /* for high speed devices with debug descriptors */
+ if (status[0] & (1 << 6))
+ printf(" Debug Mode\n");
+}
+
+static void dump_usb2_device_capability_desc(unsigned char *buf)
+{
+ unsigned int wide;
+
+ wide = buf[3] + (buf[4] << 8) +
+ (buf[5] << 16) + (buf[6] << 24);
+ printf(" USB 2.0 Extension Device Capability:\n"
+ " bLength %5u\n"
+ " bDescriptorType %5u\n"
+ " bDevCapabilityType %5u\n"
+ " bmAttributes 0x%08x\n",
+ buf[0], buf[1], buf[2], wide);
+ if (!(wide & 0x02))
+ printf(" (Missing must-be-set LPM bit!)\n");
+ else if (!(wide & 0x04))
+ printf(" HIRD Link Power Management (LPM)"
+ " Supported\n");
+ else {
+ printf(" BESL Link Power Management (LPM)"
+ " Supported\n");
+ if (wide & 0x08)
+ printf(" BESL value %5u us \n", wide & 0xf00);
+ if (wide & 0x10)
+ printf(" Deep BESL value %5u us \n",
+ wide & 0xf000);
+ }
+}
+
+static void dump_ss_device_capability_desc(unsigned char *buf)
+{
+ if (buf[0] < 10) {
+ fprintf(stderr, " Bad SuperSpeed USB Device Capability descriptor.\n");
+ return;
+ }
+ printf(" SuperSpeed USB Device Capability:\n"
+ " bLength %5u\n"
+ " bDescriptorType %5u\n"
+ " bDevCapabilityType %5u\n"
+ " bmAttributes 0x%02x\n",
+ buf[0], buf[1], buf[2], buf[3]);
+ if (buf[3] & 0x02)
+ printf(" Latency Tolerance Messages (LTM)"
+ " Supported\n");
+ printf(" wSpeedsSupported 0x%02x%02x\n", buf[5], buf[4]);
+ if (buf[4] & (1 << 0))
+ printf(" Device can operate at Low Speed (1Mbps)\n");
+ if (buf[4] & (1 << 1))
+ printf(" Device can operate at Full Speed (12Mbps)\n");
+ if (buf[4] & (1 << 2))
+ printf(" Device can operate at High Speed (480Mbps)\n");
+ if (buf[4] & (1 << 3))
+ printf(" Device can operate at SuperSpeed (5Gbps)\n");
+
+ printf(" bFunctionalitySupport %3u\n", buf[6]);
+ switch(buf[6]) {
+ case 0:
+ printf(" Lowest fully-functional device speed is "
+ "Low Speed (1Mbps)\n");
+ break;
+ case 1:
+ printf(" Lowest fully-functional device speed is "
+ "Full Speed (12Mbps)\n");
+ break;
+ case 2:
+ printf(" Lowest fully-functional device speed is "
+ "High Speed (480Mbps)\n");
+ break;
+ case 3:
+ printf(" Lowest fully-functional device speed is "
+ "SuperSpeed (5Gbps)\n");
+ break;
+ default:
+ printf(" Lowest fully-functional device speed is "
+ "at an unknown speed!\n");
+ break;
+ }
+ printf(" bU1DevExitLat %4u micro seconds\n", buf[7]);
+ printf(" bU2DevExitLat %8u micro seconds\n", buf[8] + (buf[9] << 8));
+}
+
+static void dump_ssp_device_capability_desc(unsigned char *buf)
+{
+ int i;
+ unsigned int bm_attr, ss_attr;
+ char bitrate_prefix[] = " KMG";
+
+ if (buf[0] < 12) {
+ fprintf(stderr, " Bad SuperSpeedPlus USB Device Capability descriptor.\n");
+ return;
+ }
+
+ bm_attr = convert_le_u32(buf + 4);
+ printf(" SuperSpeedPlus USB Device Capability:\n"
+ " bLength %5u\n"
+ " bDescriptorType %5u\n"
+ " bDevCapabilityType %5u\n"
+ " bmAttributes 0x%08x\n",
+ buf[0], buf[1], buf[2], bm_attr);
+
+ printf(" Sublink Speed Attribute count %u\n", (buf[4] & 0x1f)+1);
+ printf(" Sublink Speed ID count %u\n", ((bm_attr >> 5) & 0xf)+1);
+ printf(" wFunctionalitySupport 0x%02x%02x\n", buf[9], buf[8]);
+ printf(" Min functional Speed Attribute ID: %u\n", buf[8] & 0x0f);
+ printf(" Min functional RX lanes: %u\n", buf[9] & 0x0f);
+ printf(" Min functional TX lanes: %u\n", (buf[9] >> 4) & 0x0f);
+
+ for (i = 0; i <= (buf[4] & 0x1f); i++) {
+ ss_attr = convert_le_u32(buf + 12 + (i * 4));
+ printf(" bmSublinkSpeedAttr[%u] 0x%08x\n", i, ss_attr);
+ printf(" Speed Attribute ID: %u %u%cb/s %s %s SuperSpeed%s\n",
+ ss_attr & 0x0f,
+ ss_attr >> 16,
+ (bitrate_prefix[((ss_attr >> 4) & 0x3)]),
+ (ss_attr & 0x40)? "Asymmetric" : "Symmetric",
+ (ss_attr & 0x80)? "TX" : "RX",
+ (ss_attr & 0x4000)? "Plus": "" );
+ }
+}
+
+static void dump_container_id_device_capability_desc(unsigned char *buf)
+{
+ if (buf[0] < 20) {
+ fprintf(stderr, " Bad Container ID Device Capability descriptor.\n");
+ return;
+ }
+ printf(" Container ID Device Capability:\n"
+ " bLength %5u\n"
+ " bDescriptorType %5u\n"
+ " bDevCapabilityType %5u\n"
+ " bReserved %5u\n",
+ buf[0], buf[1], buf[2], buf[3]);
+ printf(" ContainerID %s\n",
+ get_guid(&buf[4]));
+}
+
+static char *get_webusb_url(libusb_device_handle *fd, uint8_t vendor_req, uint8_t id)
+{
+ unsigned char url_buf[255];
+ char *scheme;
+ char *url, *chr;
+ unsigned char i;
+ int ret;
+
+ ret = usb_control_msg(fd,
+ LIBUSB_ENDPOINT_IN | LIBUSB_RECIPIENT_DEVICE | LIBUSB_REQUEST_TYPE_VENDOR,
+ vendor_req, id, WEBUSB_GET_URL,
+ url_buf, sizeof(url_buf), CTRL_TIMEOUT);
+ if (ret <= 0)
+ return strdup("");
+ else if (url_buf[0] <= 3 || url_buf[1] != USB_DT_WEBUSB_URL || ret != url_buf[0])
+ return strdup("");
+
+ switch (url_buf[2]) {
+ case 0:
+ scheme = "http://";
+ break;
+ case 1:
+ scheme = "https://";
+ break;
+ case 255:
+ scheme = "";
+ break;
+ default:
+ fprintf(stderr, "Bad URL scheme.\n");
+ return strdup("");
+ }
+ url = malloc(strlen(scheme) + (url_buf[0] - 3) + 1);
+ if (!url)
+ return strdup("");
+ strcpy(url, scheme);
+ chr = url + strlen(scheme);
+ for (i = 3; i < url_buf[0]; i++)
+ /* crude UTF-8 to ASCII conversion */
+ if (url_buf[i] < 0x80)
+ *chr++ = url_buf[i];
+ *chr = '\0';
+
+ return url;
+}
+
+static void dump_platform_device_capability_desc(libusb_device_handle *fd, unsigned char *buf)
+{
+ unsigned char desc_len = buf[0];
+ unsigned char cap_data_len = desc_len - 20;
+ unsigned char i;
+ const char *guid;
+ if (desc_len < 20) {
+ fprintf(stderr, " Bad Platform Device Capability descriptor.\n");
+ return;
+ }
+ printf(" Platform Device Capability:\n"
+ " bLength %5u\n"
+ " bDescriptorType %5u\n"
+ " bDevCapabilityType %5u\n"
+ " bReserved %5u\n",
+ buf[0], buf[1], buf[2], buf[3]);
+ guid = get_guid(&buf[4]);
+ printf(" PlatformCapabilityUUID %s\n", guid);
+
+ if (!strcmp(WEBUSB_GUID , guid) && desc_len == 24) {
+ /* WebUSB platform descriptor */
+ char *url = get_webusb_url(fd, buf[22], buf[23]);
+ printf(" WebUSB:\n"
+ " bcdVersion %2x.%02x\n"
+ " bVendorCode %5u\n"
+ " iLandingPage %5u %s\n",
+ buf[21], buf[20], buf[22], buf[23], url);
+ free(url);
+ return;
+ }
+
+ for (i = 0; i < cap_data_len; i++) {
+ printf(" CapabilityData[%u] 0x%02x\n", i, buf[20 + i]);
+ }
+}
+
+static void dump_billboard_device_capability_desc(libusb_device_handle *dev, unsigned char *buf)
+{
+ char *url, *alt_mode_str;
+ int w_vconn_power, alt_mode, i, svid, state;
+ const char *vconn;
+ unsigned char *bmConfigured;
+
+ if (buf[0] < 48) {
+ fprintf(stderr, " Bad Billboard Capability descriptor.\n");
+ return;
+ }
+
+ if (buf[4] > BILLBOARD_MAX_NUM_ALT_MODE) {
+ fprintf(stderr, " Invalid value for bNumberOfAlternateModes.\n");
+ return;
+ }
+
+ if (buf[0] < (44 + buf[4] * 4)) {
+ fprintf(stderr, " bLength does not match with bNumberOfAlternateModes.\n");
+ return;
+ }
+
+ url = get_dev_string(dev, buf[3]);
+ w_vconn_power = convert_le_u16(buf+6);
+ if (w_vconn_power & (1 << 15)) {
+ vconn = "VCONN power not required";
+ } else if (w_vconn_power < 7) {
+ vconn = vconn_power[w_vconn_power & 0x7];
+ } else {
+ vconn = "reserved";
+ }
+ printf(" Billboard Capability:\n"
+ " bLength %5u\n"
+ " bDescriptorType %5u\n"
+ " bDevCapabilityType %5u\n"
+ " iAdditionalInfoURL %5u %s\n"
+ " bNumberOfAlternateModes %5u\n"
+ " bPreferredAlternateMode %5u\n"
+ " VCONN Power %5u %s\n",
+ buf[0], buf[1], buf[2],
+ buf[3], url,
+ buf[4], buf[5],
+ w_vconn_power, vconn);
+
+ bmConfigured = &buf[8];
+
+ printf(" bmConfigured ");
+ dump_bytes(bmConfigured, 32);
+
+ printf(
+ " bcdVersion %2x.%02x\n"
+ " bAdditionalFailureInfo %5u\n"
+ " bReserved %5u\n",
+ (buf[41] == 0) ? 1 : buf[41], buf[40],
+ buf[42], buf[43]);
+
+ printf(" Alternate Modes supported by Device Container:\n");
+ i = 44; /* Alternate mode 0 starts at index 44 */
+ for (alt_mode = 0; alt_mode < buf[4]; alt_mode++) {
+ svid = convert_le_u16(buf+i);
+ alt_mode_str = get_dev_string(dev, buf[i+3]);
+ state = ((bmConfigured[alt_mode >> 2]) >> ((alt_mode & 0x3) << 1)) & 0x3;
+ printf(
+ " Alternate Mode %d : %s\n"
+ " wSVID[%d] 0x%04X\n"
+ " bAlternateMode[%d] %5u\n"
+ " iAlternateModeString[%d] %5u %s\n",
+ alt_mode, alt_mode_state[state],
+ alt_mode, svid,
+ alt_mode, buf[i+2],
+ alt_mode, buf[i+3], alt_mode_str);
+ free(alt_mode_str);
+ i += 4;
+ }
+
+ free (url);
+}
+
+static void dump_billboard_alt_mode_capability_desc(unsigned char *buf)
+{
+ if (buf[0] != 8) {
+ fprintf(stderr, " Bad Billboard Alternate Mode Capability descriptor.\n");
+ return;
+ }
+
+ printf(" Billboard Alternate Mode Capability:\n"
+ " bLength %5u\n"
+ " bDescriptorType %5u\n"
+ " bDevCapabilityType %5u\n"
+ " bIndex %5u\n"
+ " dwAlternateModeVdo 0x%02X%02X%02X%02X\n",
+ buf[0], buf[1], buf[2], buf[3],
+ buf[4], buf[5], buf[6], buf[7]);
+}
+
+static void dump_bos_descriptor(libusb_device_handle *fd, bool* has_ssp)
+{
+ /* Total length of BOS descriptors varies.
+ * Read first static 5 bytes which include the total length before
+ * allocating and reading the full BOS
+ */
+
+ unsigned char bos_desc_static[5];
+ unsigned char *bos_desc;
+ unsigned int bos_desc_size;
+ int size, ret;
+ unsigned char *buf;
+
+ /* Get the first 5 bytes to get the wTotalLength field */
+ ret = usb_control_msg(fd,
+ LIBUSB_ENDPOINT_IN | LIBUSB_RECIPIENT_DEVICE,
+ LIBUSB_REQUEST_GET_DESCRIPTOR,
+ USB_DT_BOS << 8, 0,
+ bos_desc_static, 5, CTRL_TIMEOUT);
+ if (ret <= 0)
+ return;
+ else if (bos_desc_static[0] != 5 || bos_desc_static[1] != USB_DT_BOS)
+ return;
+
+ bos_desc_size = bos_desc_static[2] + (bos_desc_static[3] << 8);
+ printf("Binary Object Store Descriptor:\n"
+ " bLength %5u\n"
+ " bDescriptorType %5u\n"
+ " wTotalLength 0x%04x\n"
+ " bNumDeviceCaps %5u\n",
+ bos_desc_static[0], bos_desc_static[1],
+ bos_desc_size, bos_desc_static[4]);
+
+ if (bos_desc_size <= 5) {
+ if (bos_desc_static[4] > 0)
+ fprintf(stderr, "Couldn't get "
+ "device capability descriptors\n");
+ return;
+ }
+ bos_desc = malloc(bos_desc_size);
+ if (!bos_desc)
+ return;
+ memset(bos_desc, 0, bos_desc_size);
+
+ ret = usb_control_msg(fd,
+ LIBUSB_ENDPOINT_IN | LIBUSB_RECIPIENT_DEVICE,
+ LIBUSB_REQUEST_GET_DESCRIPTOR,
+ USB_DT_BOS << 8, 0,
+ bos_desc, bos_desc_size, CTRL_TIMEOUT);
+ if (ret < 0) {
+ fprintf(stderr, "Couldn't get device capability descriptors\n");
+ goto out;
+ }
+
+ size = bos_desc_size - 5;
+ buf = &bos_desc[5];
+
+ while (size >= 3) {
+ if (buf[0] < 3) {
+ printf("buf[0] = %u\n", buf[0]);
+ goto out;
+ }
+ switch (buf[2]) {
+ case USB_DC_WIRELESS_USB:
+ /* FIXME */
+ break;
+ case USB_DC_20_EXTENSION:
+ dump_usb2_device_capability_desc(buf);
+ break;
+ case USB_DC_SUPERSPEED:
+ dump_ss_device_capability_desc(buf);
+ break;
+ case USB_DC_SUPERSPEEDPLUS:
+ dump_ssp_device_capability_desc(buf);
+ *has_ssp = true;
+ break;
+ case USB_DC_CONTAINER_ID:
+ dump_container_id_device_capability_desc(buf);
+ break;
+ case USB_DC_PLATFORM:
+ dump_platform_device_capability_desc(fd, buf);
+ break;
+ case USB_DC_BILLBOARD:
+ dump_billboard_device_capability_desc(fd, buf);
+ break;
+ case USB_DC_BILLBOARD_ALT_MODE:
+ dump_billboard_alt_mode_capability_desc(buf);
+ break;
+ case USB_DC_CONFIGURATION_SUMMARY:
+ printf(" Configuration Summary Device Capability:\n");
+ desc_dump(fd, desc_usb3_dc_configuration_summary,
+ buf, DESC_BUF_LEN_FROM_BUF, 2);
+ break;
+ default:
+ printf(" ** UNRECOGNIZED: ");
+ dump_bytes(buf, buf[0]);
+ break;
+ }
+ size -= buf[0];
+ buf += buf[0];
+ }
+out:
+ free(bos_desc);
+}
+
+static void dumpdev(libusb_device *dev)
+{
+ libusb_device_handle *udev;
+ struct libusb_device_descriptor desc;
+ int i, ret;
+ int otg;
+ bool has_ssp = false;
+
+ otg = 0;
+ ret = libusb_open(dev, &udev);
+ if (ret) {
+ fprintf(stderr, "Couldn't open device, some information "
+ "will be missing\n");
+ udev = NULL;
+ }
+
+ libusb_get_device_descriptor(dev, &desc);
+ dump_device(dev, &desc);
+ if (desc.bNumConfigurations) {
+ struct libusb_config_descriptor *config;
+
+ ret = libusb_get_config_descriptor(dev, 0, &config);
+ if (ret) {
+ fprintf(stderr, "Couldn't get configuration descriptor 0, "
+ "some information will be missing\n");
+ } else {
+ otg = do_otg(config) || otg;
+ libusb_free_config_descriptor(config);
+ }
+
+ for (i = 0; i < desc.bNumConfigurations; ++i) {
+ ret = libusb_get_config_descriptor(dev, i, &config);
+ if (ret) {
+ fprintf(stderr, "Couldn't get configuration "
+ "descriptor %d, some information will "
+ "be missing\n", i);
+ } else {
+ dump_config(udev, config, desc.bcdUSB);
+ libusb_free_config_descriptor(config);
+ }
+ }
+ }
+ if (!udev)
+ return;
+
+ if (desc.bcdUSB >= 0x0201)
+ dump_bos_descriptor(udev, &has_ssp);
+ if (desc.bDeviceClass == LIBUSB_CLASS_HUB)
+ do_hub(udev, desc.bDeviceProtocol, desc.bcdUSB, has_ssp);
+ if (desc.bcdUSB == 0x0200) {
+ do_dualspeed(udev);
+ }
+ do_debug(udev);
+ dump_device_status(udev, otg, desc.bcdUSB >= 0x0300);
+ libusb_close(udev);
+}
+
+/* ---------------------------------------------------------------------- */
+
+static int dump_one_device(libusb_context *ctx, const char *path)
+{
+ libusb_device *dev;
+ struct libusb_device_descriptor desc;
+ char vendor[128], product[128];
+
+ dev = get_usb_device(ctx, path);
+ if (!dev) {
+ fprintf(stderr, "Cannot open %s\n", path);
+ return 1;
+ }
+ libusb_get_device_descriptor(dev, &desc);
+ get_vendor_product_with_fallback(vendor, sizeof(vendor),
+ product, sizeof(product), dev);
+ printf("Device: ID %04x:%04x %s %s\n", desc.idVendor,
+ desc.idProduct,
+ vendor,
+ product);
+ dumpdev(dev);
+ return 0;
+}
+
+static void sort_device_list(libusb_device **list, ssize_t num_devs)
+{
+ struct libusb_device *dev, *dev_next;
+ int bnum, bnum_next, dnum, dnum_next;
+ ssize_t i;
+ int sorted;
+ sorted = 0;
+ do {
+ sorted = 1;
+ for (i = 0; i < num_devs - 1; ++i) {
+ dev = list[i];
+ dev_next = list[i + 1];
+ bnum = libusb_get_bus_number(dev);
+ dnum = libusb_get_device_address(dev);
+ bnum_next = libusb_get_bus_number(dev_next);
+ dnum_next = libusb_get_device_address(dev_next);
+ if ((bnum == bnum_next && dnum > dnum_next) || bnum > bnum_next) {
+ list[i] = dev_next;
+ list[i + 1] = dev;
+ sorted = 0;
+ }
+ }
+ } while(!sorted);
+}
+
+static int list_devices(libusb_context *ctx, int busnum, int devnum, int vendorid, int productid)
+{
+ libusb_device **list;
+ struct libusb_device_descriptor desc;
+ char vendor[128], product[128];
+ int status;
+ ssize_t num_devs, i;
+
+ status = 1; /* 1 device not found, 0 device found */
+
+ num_devs = libusb_get_device_list(ctx, &list);
+ if (num_devs < 0)
+ goto error;
+
+ sort_device_list(list, num_devs);
+ for (i = 0; i < num_devs; ++i) {
+ libusb_device *dev = list[i];
+ uint8_t bnum = libusb_get_bus_number(dev);
+ uint8_t dnum = libusb_get_device_address(dev);
+
+ if ((busnum != -1 && busnum != bnum) ||
+ (devnum != -1 && devnum != dnum))
+ continue;
+ libusb_get_device_descriptor(dev, &desc);
+ if ((vendorid != -1 && vendorid != desc.idVendor) ||
+ (productid != -1 && productid != desc.idProduct))
+ continue;
+ status = 0;
+
+ get_vendor_product_with_fallback(vendor, sizeof(vendor),
+ product, sizeof(product), dev);
+
+ if (verblevel > 0)
+ printf("\n");
+ printf("Bus %03u Device %03u: ID %04x:%04x %s %s\n",
+ bnum, dnum,
+ desc.idVendor,
+ desc.idProduct,
+ vendor, product);
+ if (verblevel > 0)
+ dumpdev(dev);
+ }
+
+ libusb_free_device_list(list, 0);
+error:
+ return status;
+}
+
+
+/* ---------------------------------------------------------------------- */
+
+int main(int argc, char *argv[])
+{
+ static const struct option long_options[] = {
+ { "version", 0, 0, 'V' },
+ { "verbose", 0, 0, 'v' },
+ { "help", 0, 0, 'h' },
+ { "tree", 0, 0, 't' },
+ { 0, 0, 0, 0 }
+ };
+ libusb_context *ctx;
+ int c, err = 0;
+ unsigned int treemode = 0;
+ int bus = -1, devnum = -1, vendor = -1, product = -1;
+ const char *devdump = NULL;
+ int help = 0;
+ char *cp;
+ int status;
+
+ setlocale(LC_CTYPE, "");
+
+ while ((c = getopt_long(argc, argv, "D:vtP:p:s:d:Vh",
+ long_options, NULL)) != EOF) {
+ switch (c) {
+ case 'V':
+ printf("lsusb (" PACKAGE ") " VERSION "\n");
+ return EXIT_SUCCESS;
+ case 'v':
+ verblevel++;
+ break;
+
+ case 'h':
+ help=1;
+ break;
+
+ case 't':
+ treemode = 1;
+ break;
+
+ case 's':
+ cp = strchr(optarg, ':');
+ if (cp) {
+ *cp++ = 0;
+ if (*optarg)
+ bus = strtoul(optarg, NULL, 10);
+ if (*cp)
+ devnum = strtoul(cp, NULL, 10);
+ } else {
+ if (*optarg)
+ devnum = strtoul(optarg, NULL, 10);
+ }
+ break;
+
+ case 'd':
+ cp = strchr(optarg, ':');
+ if (!cp) {
+ err++;
+ break;
+ }
+ *cp++ = 0;
+ if (*optarg)
+ vendor = strtoul(optarg, NULL, 16);
+ if (*cp)
+ product = strtoul(cp, NULL, 16);
+ break;
+
+ case 'D':
+ devdump = optarg;
+ break;
+
+ case '?':
+ default:
+ err++;
+ break;
+ }
+ }
+ if (err || argc > optind || help) {
+ fprintf(stderr, "Usage: lsusb [options]...\n"
+ "List USB devices\n"
+ " -v, --verbose\n"
+ " Increase verbosity (show descriptors)\n"
+ " -s [[bus]:][devnum]\n"
+ " Show only devices with specified device and/or\n"
+ " bus numbers (in decimal)\n"
+ " -d vendor:[product]\n"
+ " Show only devices with the specified vendor and\n"
+ " product ID numbers (in hexadecimal)\n"
+ " -D device\n"
+ " Selects which device lsusb will examine\n"
+ " -t, --tree\n"
+ " Dump the physical USB device hierarchy as a tree\n"
+ " -V, --version\n"
+ " Show version of program\n"
+ " -h, --help\n"
+ " Show usage and help\n"
+ );
+ if (help && !err)
+ return 0;
+ else
+ return EXIT_FAILURE;
+ }
+
+
+ /* by default, print names as well as numbers */
+ if (names_init() < 0)
+ fprintf(stderr, "unable to initialize usb spec");
+
+ status = 0;
+
+ if (treemode) {
+ status = lsusb_t();
+ names_exit();
+ return status;
+ }
+
+ err = libusb_init(&ctx);
+ if (err) {
+ fprintf(stderr, "unable to initialize libusb: %i\n", err);
+ return EXIT_FAILURE;
+ }
+
+ if (devdump)
+ status = dump_one_device(ctx, devdump);
+ else
+ status = list_devices(ctx, bus, devnum, vendor, product);
+
+ names_exit();
+ libusb_exit(ctx);
+ return status;
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-06-12 10:27:19 +0000