1 files changed, 92 insertions, 0 deletions
diff --git a/usbhid-dump/src/iface_list.h b/usbhid-dump/src/iface_list.h
new file mode 100644
index 0000000..d99f761
--- /dev/null
+++ b/usbhid-dump/src/iface_list.h
@@ -0,0 +1,92 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * usbhid-dump - interface list
+ *
+ * Copyright (C) 2010 Nikolai Kondrashov <spbnick@gmail.com>
+ */
+
+#ifndef __UHD_IFACE_LIST_H__
+#define __UHD_IFACE_LIST_H__
+
+#include <stdint.h>
+#include "dev_list.h"
+#include "iface.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * Check if an interface list is valid.
+ *
+ * @param list  Interface list to check.
+ *
+ * @return True if the interface list is valid, false otherwise.
+ */
+extern bool uhd_iface_list_valid(const uhd_iface *list);
+
+/**
+ * Check if an interface list is empty.
+ *
+ * @param list  Interface list to check.
+ *
+ * @return True if the interface list is empty, false otherwise.
+ */
+static inline bool
+uhd_iface_list_empty(const uhd_iface *list)
+{
+    return list == NULL;
+}
+
+/**
+ * Calculate length of an interface list.
+ *
+ * @param list  The list to calculate length of.
+ *
+ * @return The list length.
+ */
+extern size_t uhd_iface_list_len(const uhd_iface *list);
+
+/**
+ * Free an interface list.
+ *
+ * @param list  The interface list to free.
+ */
+extern void uhd_iface_list_free(uhd_iface *list);
+
+/**
+ * Iterate over an interface list.
+ *
+ * @param _iface    Loop interface variable.
+ * @param _list     Interface list to iterate over.
+ */
+#define UHD_IFACE_LIST_FOR_EACH(_iface, _list) \
+    for (_iface = _list; _iface != NULL; _iface = _iface->next)
+
+/**
+ * Fetch a list of HID interfaces from a device list.
+ *
+ * @param dev_list      The device list to fetch interface list from.
+ * @param plist         Location for the resulting list head; could be NULL.
+ *
+ * @return Libusb error code.
+ */
+extern enum libusb_error uhd_iface_list_new(uhd_dev    *dev_list,
+                                            uhd_iface **plist);
+
+/**
+ * Filter an interface list by an interface number.
+ *
+ * @param plist     The original list head.
+ * @param number    The interface number to match against.
+ *
+ * @return The resulting list head.
+ */
+extern uhd_iface *uhd_iface_list_fltr_by_num(uhd_iface *list,
+                                             uint8_t    number);
+
+#ifdef __cplusplus
+} /* extern "C" */
+#endif
+
+#endif /* __UHD_IFACE_LIST_H__ */