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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 10:05:51 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 10:05:51 +0000
commit5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 (patch)
treea94efe259b9009378be6d90eb30d2b019d95c194 /drivers/hid/hid-picolcd_core.c
parentInitial commit. (diff)
downloadlinux-upstream/5.10.209.tar.xz
linux-upstream/5.10.209.zip
Adding upstream version 5.10.209.upstream/5.10.209upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/hid/hid-picolcd_core.c')
-rw-r--r--drivers/hid/hid-picolcd_core.c661
1 files changed, 661 insertions, 0 deletions
diff --git a/drivers/hid/hid-picolcd_core.c b/drivers/hid/hid-picolcd_core.c
new file mode 100644
index 000000000..1b5c63241
--- /dev/null
+++ b/drivers/hid/hid-picolcd_core.c
@@ -0,0 +1,661 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/***************************************************************************
+ * Copyright (C) 2010-2012 by Bruno Prémont <bonbons@linux-vserver.org> *
+ * *
+ * Based on Logitech G13 driver (v0.4) *
+ * Copyright (C) 2009 by Rick L. Vinyard, Jr. <rvinyard@cs.nmsu.edu> *
+ * *
+ ***************************************************************************/
+
+#include <linux/hid.h>
+#include <linux/hid-debug.h>
+#include <linux/input.h>
+#include "hid-ids.h"
+
+#include <linux/fb.h>
+#include <linux/vmalloc.h>
+
+#include <linux/completion.h>
+#include <linux/uaccess.h>
+#include <linux/module.h>
+#include <linux/string.h>
+
+#include "hid-picolcd.h"
+
+
+/* Input device
+ *
+ * The PicoLCD has an IR receiver header, a built-in keypad with 5 keys
+ * and header for 4x4 key matrix. The built-in keys are part of the matrix.
+ */
+static const unsigned short def_keymap[PICOLCD_KEYS] = {
+ KEY_RESERVED, /* none */
+ KEY_BACK, /* col 4 + row 1 */
+ KEY_HOMEPAGE, /* col 3 + row 1 */
+ KEY_RESERVED, /* col 2 + row 1 */
+ KEY_RESERVED, /* col 1 + row 1 */
+ KEY_SCROLLUP, /* col 4 + row 2 */
+ KEY_OK, /* col 3 + row 2 */
+ KEY_SCROLLDOWN, /* col 2 + row 2 */
+ KEY_RESERVED, /* col 1 + row 2 */
+ KEY_RESERVED, /* col 4 + row 3 */
+ KEY_RESERVED, /* col 3 + row 3 */
+ KEY_RESERVED, /* col 2 + row 3 */
+ KEY_RESERVED, /* col 1 + row 3 */
+ KEY_RESERVED, /* col 4 + row 4 */
+ KEY_RESERVED, /* col 3 + row 4 */
+ KEY_RESERVED, /* col 2 + row 4 */
+ KEY_RESERVED, /* col 1 + row 4 */
+};
+
+
+/* Find a given report */
+struct hid_report *picolcd_report(int id, struct hid_device *hdev, int dir)
+{
+ struct list_head *feature_report_list = &hdev->report_enum[dir].report_list;
+ struct hid_report *report = NULL;
+
+ list_for_each_entry(report, feature_report_list, list) {
+ if (report->id == id)
+ return report;
+ }
+ hid_warn(hdev, "No report with id 0x%x found\n", id);
+ return NULL;
+}
+
+/* Submit a report and wait for a reply from device - if device fades away
+ * or does not respond in time, return NULL */
+struct picolcd_pending *picolcd_send_and_wait(struct hid_device *hdev,
+ int report_id, const u8 *raw_data, int size)
+{
+ struct picolcd_data *data = hid_get_drvdata(hdev);
+ struct picolcd_pending *work;
+ struct hid_report *report = picolcd_out_report(report_id, hdev);
+ unsigned long flags;
+ int i, j, k;
+
+ if (!report || !data)
+ return NULL;
+ if (data->status & PICOLCD_FAILED)
+ return NULL;
+ work = kzalloc(sizeof(*work), GFP_KERNEL);
+ if (!work)
+ return NULL;
+
+ init_completion(&work->ready);
+ work->out_report = report;
+ work->in_report = NULL;
+ work->raw_size = 0;
+
+ mutex_lock(&data->mutex);
+ spin_lock_irqsave(&data->lock, flags);
+ for (i = k = 0; i < report->maxfield; i++)
+ for (j = 0; j < report->field[i]->report_count; j++) {
+ hid_set_field(report->field[i], j, k < size ? raw_data[k] : 0);
+ k++;
+ }
+ if (data->status & PICOLCD_FAILED) {
+ kfree(work);
+ work = NULL;
+ } else {
+ data->pending = work;
+ hid_hw_request(data->hdev, report, HID_REQ_SET_REPORT);
+ spin_unlock_irqrestore(&data->lock, flags);
+ wait_for_completion_interruptible_timeout(&work->ready, HZ*2);
+ spin_lock_irqsave(&data->lock, flags);
+ data->pending = NULL;
+ }
+ spin_unlock_irqrestore(&data->lock, flags);
+ mutex_unlock(&data->mutex);
+ return work;
+}
+
+/*
+ * input class device
+ */
+static int picolcd_raw_keypad(struct picolcd_data *data,
+ struct hid_report *report, u8 *raw_data, int size)
+{
+ /*
+ * Keypad event
+ * First and second data bytes list currently pressed keys,
+ * 0x00 means no key and at most 2 keys may be pressed at same time
+ */
+ int i, j;
+
+ /* determine newly pressed keys */
+ for (i = 0; i < size; i++) {
+ unsigned int key_code;
+ if (raw_data[i] == 0)
+ continue;
+ for (j = 0; j < sizeof(data->pressed_keys); j++)
+ if (data->pressed_keys[j] == raw_data[i])
+ goto key_already_down;
+ for (j = 0; j < sizeof(data->pressed_keys); j++)
+ if (data->pressed_keys[j] == 0) {
+ data->pressed_keys[j] = raw_data[i];
+ break;
+ }
+ input_event(data->input_keys, EV_MSC, MSC_SCAN, raw_data[i]);
+ if (raw_data[i] < PICOLCD_KEYS)
+ key_code = data->keycode[raw_data[i]];
+ else
+ key_code = KEY_UNKNOWN;
+ if (key_code != KEY_UNKNOWN) {
+ dbg_hid(PICOLCD_NAME " got key press for %u:%d",
+ raw_data[i], key_code);
+ input_report_key(data->input_keys, key_code, 1);
+ }
+ input_sync(data->input_keys);
+key_already_down:
+ continue;
+ }
+
+ /* determine newly released keys */
+ for (j = 0; j < sizeof(data->pressed_keys); j++) {
+ unsigned int key_code;
+ if (data->pressed_keys[j] == 0)
+ continue;
+ for (i = 0; i < size; i++)
+ if (data->pressed_keys[j] == raw_data[i])
+ goto key_still_down;
+ input_event(data->input_keys, EV_MSC, MSC_SCAN, data->pressed_keys[j]);
+ if (data->pressed_keys[j] < PICOLCD_KEYS)
+ key_code = data->keycode[data->pressed_keys[j]];
+ else
+ key_code = KEY_UNKNOWN;
+ if (key_code != KEY_UNKNOWN) {
+ dbg_hid(PICOLCD_NAME " got key release for %u:%d",
+ data->pressed_keys[j], key_code);
+ input_report_key(data->input_keys, key_code, 0);
+ }
+ input_sync(data->input_keys);
+ data->pressed_keys[j] = 0;
+key_still_down:
+ continue;
+ }
+ return 1;
+}
+
+static int picolcd_check_version(struct hid_device *hdev)
+{
+ struct picolcd_data *data = hid_get_drvdata(hdev);
+ struct picolcd_pending *verinfo;
+ int ret = 0;
+
+ if (!data)
+ return -ENODEV;
+
+ verinfo = picolcd_send_and_wait(hdev, REPORT_VERSION, NULL, 0);
+ if (!verinfo) {
+ hid_err(hdev, "no version response from PicoLCD\n");
+ return -ENODEV;
+ }
+
+ if (verinfo->raw_size == 2) {
+ data->version[0] = verinfo->raw_data[1];
+ data->version[1] = verinfo->raw_data[0];
+ if (data->status & PICOLCD_BOOTLOADER) {
+ hid_info(hdev, "PicoLCD, bootloader version %d.%d\n",
+ verinfo->raw_data[1], verinfo->raw_data[0]);
+ } else {
+ hid_info(hdev, "PicoLCD, firmware version %d.%d\n",
+ verinfo->raw_data[1], verinfo->raw_data[0]);
+ }
+ } else {
+ hid_err(hdev, "confused, got unexpected version response from PicoLCD\n");
+ ret = -EINVAL;
+ }
+ kfree(verinfo);
+ return ret;
+}
+
+/*
+ * Reset our device and wait for answer to VERSION request
+ */
+int picolcd_reset(struct hid_device *hdev)
+{
+ struct picolcd_data *data = hid_get_drvdata(hdev);
+ struct hid_report *report = picolcd_out_report(REPORT_RESET, hdev);
+ unsigned long flags;
+ int error;
+
+ if (!data || !report || report->maxfield != 1)
+ return -ENODEV;
+
+ spin_lock_irqsave(&data->lock, flags);
+ if (hdev->product == USB_DEVICE_ID_PICOLCD_BOOTLOADER)
+ data->status |= PICOLCD_BOOTLOADER;
+
+ /* perform the reset */
+ hid_set_field(report->field[0], 0, 1);
+ if (data->status & PICOLCD_FAILED) {
+ spin_unlock_irqrestore(&data->lock, flags);
+ return -ENODEV;
+ }
+ hid_hw_request(hdev, report, HID_REQ_SET_REPORT);
+ spin_unlock_irqrestore(&data->lock, flags);
+
+ error = picolcd_check_version(hdev);
+ if (error)
+ return error;
+
+ picolcd_resume_lcd(data);
+ picolcd_resume_backlight(data);
+ picolcd_fb_refresh(data);
+ picolcd_leds_set(data);
+ return 0;
+}
+
+/*
+ * The "operation_mode" sysfs attribute
+ */
+static ssize_t picolcd_operation_mode_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct picolcd_data *data = dev_get_drvdata(dev);
+
+ if (data->status & PICOLCD_BOOTLOADER)
+ return snprintf(buf, PAGE_SIZE, "[bootloader] lcd\n");
+ else
+ return snprintf(buf, PAGE_SIZE, "bootloader [lcd]\n");
+}
+
+static ssize_t picolcd_operation_mode_store(struct device *dev,
+ struct device_attribute *attr, const char *buf, size_t count)
+{
+ struct picolcd_data *data = dev_get_drvdata(dev);
+ struct hid_report *report = NULL;
+ int timeout = data->opmode_delay;
+ unsigned long flags;
+
+ if (sysfs_streq(buf, "lcd")) {
+ if (data->status & PICOLCD_BOOTLOADER)
+ report = picolcd_out_report(REPORT_EXIT_FLASHER, data->hdev);
+ } else if (sysfs_streq(buf, "bootloader")) {
+ if (!(data->status & PICOLCD_BOOTLOADER))
+ report = picolcd_out_report(REPORT_EXIT_KEYBOARD, data->hdev);
+ } else {
+ return -EINVAL;
+ }
+
+ if (!report || report->maxfield != 1)
+ return -EINVAL;
+
+ spin_lock_irqsave(&data->lock, flags);
+ hid_set_field(report->field[0], 0, timeout & 0xff);
+ hid_set_field(report->field[0], 1, (timeout >> 8) & 0xff);
+ hid_hw_request(data->hdev, report, HID_REQ_SET_REPORT);
+ spin_unlock_irqrestore(&data->lock, flags);
+ return count;
+}
+
+static DEVICE_ATTR(operation_mode, 0644, picolcd_operation_mode_show,
+ picolcd_operation_mode_store);
+
+/*
+ * The "operation_mode_delay" sysfs attribute
+ */
+static ssize_t picolcd_operation_mode_delay_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct picolcd_data *data = dev_get_drvdata(dev);
+
+ return snprintf(buf, PAGE_SIZE, "%hu\n", data->opmode_delay);
+}
+
+static ssize_t picolcd_operation_mode_delay_store(struct device *dev,
+ struct device_attribute *attr, const char *buf, size_t count)
+{
+ struct picolcd_data *data = dev_get_drvdata(dev);
+ unsigned u;
+ if (sscanf(buf, "%u", &u) != 1)
+ return -EINVAL;
+ if (u > 30000)
+ return -EINVAL;
+ else
+ data->opmode_delay = u;
+ return count;
+}
+
+static DEVICE_ATTR(operation_mode_delay, 0644, picolcd_operation_mode_delay_show,
+ picolcd_operation_mode_delay_store);
+
+/*
+ * Handle raw report as sent by device
+ */
+static int picolcd_raw_event(struct hid_device *hdev,
+ struct hid_report *report, u8 *raw_data, int size)
+{
+ struct picolcd_data *data = hid_get_drvdata(hdev);
+ unsigned long flags;
+ int ret = 0;
+
+ if (!data)
+ return 1;
+
+ if (size > 64) {
+ hid_warn(hdev, "invalid size value (%d) for picolcd raw event (%d)\n",
+ size, report->id);
+ return 0;
+ }
+
+ if (report->id == REPORT_KEY_STATE) {
+ if (data->input_keys)
+ ret = picolcd_raw_keypad(data, report, raw_data+1, size-1);
+ } else if (report->id == REPORT_IR_DATA) {
+ ret = picolcd_raw_cir(data, report, raw_data+1, size-1);
+ } else {
+ spin_lock_irqsave(&data->lock, flags);
+ /*
+ * We let the caller of picolcd_send_and_wait() check if the
+ * report we got is one of the expected ones or not.
+ */
+ if (data->pending) {
+ memcpy(data->pending->raw_data, raw_data+1, size-1);
+ data->pending->raw_size = size-1;
+ data->pending->in_report = report;
+ complete(&data->pending->ready);
+ }
+ spin_unlock_irqrestore(&data->lock, flags);
+ }
+
+ picolcd_debug_raw_event(data, hdev, report, raw_data, size);
+ return 1;
+}
+
+#ifdef CONFIG_PM
+static int picolcd_suspend(struct hid_device *hdev, pm_message_t message)
+{
+ if (PMSG_IS_AUTO(message))
+ return 0;
+
+ picolcd_suspend_backlight(hid_get_drvdata(hdev));
+ dbg_hid(PICOLCD_NAME " device ready for suspend\n");
+ return 0;
+}
+
+static int picolcd_resume(struct hid_device *hdev)
+{
+ int ret;
+ ret = picolcd_resume_backlight(hid_get_drvdata(hdev));
+ if (ret)
+ dbg_hid(PICOLCD_NAME " restoring backlight failed: %d\n", ret);
+ return 0;
+}
+
+static int picolcd_reset_resume(struct hid_device *hdev)
+{
+ int ret;
+ ret = picolcd_reset(hdev);
+ if (ret)
+ dbg_hid(PICOLCD_NAME " resetting our device failed: %d\n", ret);
+ ret = picolcd_fb_reset(hid_get_drvdata(hdev), 0);
+ if (ret)
+ dbg_hid(PICOLCD_NAME " restoring framebuffer content failed: %d\n", ret);
+ ret = picolcd_resume_lcd(hid_get_drvdata(hdev));
+ if (ret)
+ dbg_hid(PICOLCD_NAME " restoring lcd failed: %d\n", ret);
+ ret = picolcd_resume_backlight(hid_get_drvdata(hdev));
+ if (ret)
+ dbg_hid(PICOLCD_NAME " restoring backlight failed: %d\n", ret);
+ picolcd_leds_set(hid_get_drvdata(hdev));
+ return 0;
+}
+#endif
+
+/* initialize keypad input device */
+static int picolcd_init_keys(struct picolcd_data *data,
+ struct hid_report *report)
+{
+ struct hid_device *hdev = data->hdev;
+ struct input_dev *idev;
+ int error, i;
+
+ if (!report)
+ return -ENODEV;
+ if (report->maxfield != 1 || report->field[0]->report_count != 2 ||
+ report->field[0]->report_size != 8) {
+ hid_err(hdev, "unsupported KEY_STATE report\n");
+ return -EINVAL;
+ }
+
+ idev = input_allocate_device();
+ if (idev == NULL) {
+ hid_err(hdev, "failed to allocate input device\n");
+ return -ENOMEM;
+ }
+ input_set_drvdata(idev, hdev);
+ memcpy(data->keycode, def_keymap, sizeof(def_keymap));
+ idev->name = hdev->name;
+ idev->phys = hdev->phys;
+ idev->uniq = hdev->uniq;
+ idev->id.bustype = hdev->bus;
+ idev->id.vendor = hdev->vendor;
+ idev->id.product = hdev->product;
+ idev->id.version = hdev->version;
+ idev->dev.parent = &hdev->dev;
+ idev->keycode = &data->keycode;
+ idev->keycodemax = PICOLCD_KEYS;
+ idev->keycodesize = sizeof(data->keycode[0]);
+ input_set_capability(idev, EV_MSC, MSC_SCAN);
+ set_bit(EV_REP, idev->evbit);
+ for (i = 0; i < PICOLCD_KEYS; i++)
+ input_set_capability(idev, EV_KEY, data->keycode[i]);
+ error = input_register_device(idev);
+ if (error) {
+ hid_err(hdev, "error registering the input device\n");
+ input_free_device(idev);
+ return error;
+ }
+ data->input_keys = idev;
+ return 0;
+}
+
+static void picolcd_exit_keys(struct picolcd_data *data)
+{
+ struct input_dev *idev = data->input_keys;
+
+ data->input_keys = NULL;
+ if (idev)
+ input_unregister_device(idev);
+}
+
+static int picolcd_probe_lcd(struct hid_device *hdev, struct picolcd_data *data)
+{
+ int error;
+
+ /* Setup keypad input device */
+ error = picolcd_init_keys(data, picolcd_in_report(REPORT_KEY_STATE, hdev));
+ if (error)
+ goto err;
+
+ /* Setup CIR input device */
+ error = picolcd_init_cir(data, picolcd_in_report(REPORT_IR_DATA, hdev));
+ if (error)
+ goto err;
+
+ /* Set up the framebuffer device */
+ error = picolcd_init_framebuffer(data);
+ if (error)
+ goto err;
+
+ /* Setup lcd class device */
+ error = picolcd_init_lcd(data, picolcd_out_report(REPORT_CONTRAST, hdev));
+ if (error)
+ goto err;
+
+ /* Setup backlight class device */
+ error = picolcd_init_backlight(data, picolcd_out_report(REPORT_BRIGHTNESS, hdev));
+ if (error)
+ goto err;
+
+ /* Setup the LED class devices */
+ error = picolcd_init_leds(data, picolcd_out_report(REPORT_LED_STATE, hdev));
+ if (error)
+ goto err;
+
+ picolcd_init_devfs(data, picolcd_out_report(REPORT_EE_READ, hdev),
+ picolcd_out_report(REPORT_EE_WRITE, hdev),
+ picolcd_out_report(REPORT_READ_MEMORY, hdev),
+ picolcd_out_report(REPORT_WRITE_MEMORY, hdev),
+ picolcd_out_report(REPORT_RESET, hdev));
+ return 0;
+err:
+ picolcd_exit_leds(data);
+ picolcd_exit_backlight(data);
+ picolcd_exit_lcd(data);
+ picolcd_exit_framebuffer(data);
+ picolcd_exit_cir(data);
+ picolcd_exit_keys(data);
+ return error;
+}
+
+static int picolcd_probe_bootloader(struct hid_device *hdev, struct picolcd_data *data)
+{
+ picolcd_init_devfs(data, NULL, NULL,
+ picolcd_out_report(REPORT_BL_READ_MEMORY, hdev),
+ picolcd_out_report(REPORT_BL_WRITE_MEMORY, hdev), NULL);
+ return 0;
+}
+
+static int picolcd_probe(struct hid_device *hdev,
+ const struct hid_device_id *id)
+{
+ struct picolcd_data *data;
+ int error = -ENOMEM;
+
+ dbg_hid(PICOLCD_NAME " hardware probe...\n");
+
+ /*
+ * Let's allocate the picolcd data structure, set some reasonable
+ * defaults, and associate it with the device
+ */
+ data = kzalloc(sizeof(struct picolcd_data), GFP_KERNEL);
+ if (data == NULL) {
+ hid_err(hdev, "can't allocate space for Minibox PicoLCD device data\n");
+ return -ENOMEM;
+ }
+
+ spin_lock_init(&data->lock);
+ mutex_init(&data->mutex);
+ data->hdev = hdev;
+ data->opmode_delay = 5000;
+ if (hdev->product == USB_DEVICE_ID_PICOLCD_BOOTLOADER)
+ data->status |= PICOLCD_BOOTLOADER;
+ hid_set_drvdata(hdev, data);
+
+ /* Parse the device reports and start it up */
+ error = hid_parse(hdev);
+ if (error) {
+ hid_err(hdev, "device report parse failed\n");
+ goto err_cleanup_data;
+ }
+
+ error = hid_hw_start(hdev, 0);
+ if (error) {
+ hid_err(hdev, "hardware start failed\n");
+ goto err_cleanup_data;
+ }
+
+ error = hid_hw_open(hdev);
+ if (error) {
+ hid_err(hdev, "failed to open input interrupt pipe for key and IR events\n");
+ goto err_cleanup_hid_hw;
+ }
+
+ error = device_create_file(&hdev->dev, &dev_attr_operation_mode_delay);
+ if (error) {
+ hid_err(hdev, "failed to create sysfs attributes\n");
+ goto err_cleanup_hid_ll;
+ }
+
+ error = device_create_file(&hdev->dev, &dev_attr_operation_mode);
+ if (error) {
+ hid_err(hdev, "failed to create sysfs attributes\n");
+ goto err_cleanup_sysfs1;
+ }
+
+ if (data->status & PICOLCD_BOOTLOADER)
+ error = picolcd_probe_bootloader(hdev, data);
+ else
+ error = picolcd_probe_lcd(hdev, data);
+ if (error)
+ goto err_cleanup_sysfs2;
+
+ dbg_hid(PICOLCD_NAME " activated and initialized\n");
+ return 0;
+
+err_cleanup_sysfs2:
+ device_remove_file(&hdev->dev, &dev_attr_operation_mode);
+err_cleanup_sysfs1:
+ device_remove_file(&hdev->dev, &dev_attr_operation_mode_delay);
+err_cleanup_hid_ll:
+ hid_hw_close(hdev);
+err_cleanup_hid_hw:
+ hid_hw_stop(hdev);
+err_cleanup_data:
+ kfree(data);
+ return error;
+}
+
+static void picolcd_remove(struct hid_device *hdev)
+{
+ struct picolcd_data *data = hid_get_drvdata(hdev);
+ unsigned long flags;
+
+ dbg_hid(PICOLCD_NAME " hardware remove...\n");
+ spin_lock_irqsave(&data->lock, flags);
+ data->status |= PICOLCD_FAILED;
+ spin_unlock_irqrestore(&data->lock, flags);
+
+ picolcd_exit_devfs(data);
+ device_remove_file(&hdev->dev, &dev_attr_operation_mode);
+ device_remove_file(&hdev->dev, &dev_attr_operation_mode_delay);
+ hid_hw_close(hdev);
+ hid_hw_stop(hdev);
+
+ /* Shortcut potential pending reply that will never arrive */
+ spin_lock_irqsave(&data->lock, flags);
+ if (data->pending)
+ complete(&data->pending->ready);
+ spin_unlock_irqrestore(&data->lock, flags);
+
+ /* Cleanup LED */
+ picolcd_exit_leds(data);
+ /* Clean up the framebuffer */
+ picolcd_exit_backlight(data);
+ picolcd_exit_lcd(data);
+ picolcd_exit_framebuffer(data);
+ /* Cleanup input */
+ picolcd_exit_cir(data);
+ picolcd_exit_keys(data);
+
+ mutex_destroy(&data->mutex);
+ /* Finally, clean up the picolcd data itself */
+ kfree(data);
+}
+
+static const struct hid_device_id picolcd_devices[] = {
+ { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICOLCD) },
+ { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICOLCD_BOOTLOADER) },
+ { }
+};
+MODULE_DEVICE_TABLE(hid, picolcd_devices);
+
+static struct hid_driver picolcd_driver = {
+ .name = "hid-picolcd",
+ .id_table = picolcd_devices,
+ .probe = picolcd_probe,
+ .remove = picolcd_remove,
+ .raw_event = picolcd_raw_event,
+#ifdef CONFIG_PM
+ .suspend = picolcd_suspend,
+ .resume = picolcd_resume,
+ .reset_resume = picolcd_reset_resume,
+#endif
+};
+module_hid_driver(picolcd_driver);
+
+MODULE_DESCRIPTION("Minibox graphics PicoLCD Driver");
+MODULE_LICENSE("GPL v2");