3 * Copyright (c) 2009 Sylvestre Gallon. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 #include <sys/types.h>
32 #include <sys/endian.h>
50 enum libusb_class_code {
51 LIBUSB_CLASS_PER_INTERFACE = 0,
52 LIBUSB_CLASS_AUDIO = 1,
53 LIBUSB_CLASS_COMM = 2,
56 LIBUSB_CLASS_PRINTER = 7,
57 LIBUSB_CLASS_MASS_STORAGE = 8,
59 LIBUSB_CLASS_DATA = 10,
60 LIBUSB_CLASS_VENDOR_SPEC = 0xff,
63 enum libusb_descriptor_type {
64 LIBUSB_DT_DEVICE = 0x01,
65 LIBUSB_DT_CONFIG = 0x02,
66 LIBUSB_DT_STRING = 0x03,
67 LIBUSB_DT_INTERFACE = 0x04,
68 LIBUSB_DT_ENDPOINT = 0x05,
70 LIBUSB_DT_REPORT = 0x22,
71 LIBUSB_DT_PHYSICAL = 0x23,
75 #define LIBUSB_DT_DEVICE_SIZE 18
76 #define LIBUSB_DT_CONFIG_SIZE 9
77 #define LIBUSB_DT_INTERFACE_SIZE 9
78 #define LIBUSB_DT_ENDPOINT_SIZE 7
79 #define LIBUSB_DT_ENDPOINT_AUDIO_SIZE 9
80 #define LIBUSB_DT_HUB_NONVAR_SIZE 7
82 #define LIBUSB_ENDPOINT_ADDRESS_MASK 0x0f
83 #define LIBUSB_ENDPOINT_DIR_MASK 0x80
85 enum libusb_endpoint_direction {
86 LIBUSB_ENDPOINT_IN = 0x80,
87 LIBUSB_ENDPOINT_OUT = 0x00,
90 #define LIBUSB_TRANSFER_TYPE_MASK 0x03
92 enum libusb_transfer_type {
93 LIBUSB_TRANSFER_TYPE_CONTROL = 0,
94 LIBUSB_TRANSFER_TYPE_ISOCHRONOUS = 1,
95 LIBUSB_TRANSFER_TYPE_BULK = 2,
96 LIBUSB_TRANSFER_TYPE_INTERRUPT = 3,
99 enum libusb_standard_request {
100 LIBUSB_REQUEST_GET_STATUS = 0x00,
101 LIBUSB_REQUEST_CLEAR_FEATURE = 0x01,
102 LIBUSB_REQUEST_SET_FEATURE = 0x03,
103 LIBUSB_REQUEST_SET_ADDRESS = 0x05,
104 LIBUSB_REQUEST_GET_DESCRIPTOR = 0x06,
105 LIBUSB_REQUEST_SET_DESCRIPTOR = 0x07,
106 LIBUSB_REQUEST_GET_CONFIGURATION = 0x08,
107 LIBUSB_REQUEST_SET_CONFIGURATION = 0x09,
108 LIBUSB_REQUEST_GET_INTERFACE = 0x0A,
109 LIBUSB_REQUEST_SET_INTERFACE = 0x0B,
110 LIBUSB_REQUEST_SYNCH_FRAME = 0x0C,
113 enum libusb_request_type {
114 LIBUSB_REQUEST_TYPE_STANDARD = (0x00 << 5),
115 LIBUSB_REQUEST_TYPE_CLASS = (0x01 << 5),
116 LIBUSB_REQUEST_TYPE_VENDOR = (0x02 << 5),
117 LIBUSB_REQUEST_TYPE_RESERVED = (0x03 << 5),
120 enum libusb_request_recipient {
121 LIBUSB_RECIPIENT_DEVICE = 0x00,
122 LIBUSB_RECIPIENT_INTERFACE = 0x01,
123 LIBUSB_RECIPIENT_ENDPOINT = 0x02,
124 LIBUSB_RECIPIENT_OTHER = 0x03,
127 #define LIBUSB_ISO_SYNC_TYPE_MASK 0x0C
129 enum libusb_iso_sync_type {
130 LIBUSB_ISO_SYNC_TYPE_NONE = 0,
131 LIBUSB_ISO_SYNC_TYPE_ASYNC = 1,
132 LIBUSB_ISO_SYNC_TYPE_ADAPTIVE = 2,
133 LIBUSB_ISO_SYNC_TYPE_SYNC = 3,
136 #define LIBUSB_ISO_USAGE_TYPE_MASK 0x30
138 enum libusb_iso_usage_type {
139 LIBUSB_ISO_USAGE_TYPE_DATA = 0,
140 LIBUSB_ISO_USAGE_TYPE_FEEDBACK = 1,
141 LIBUSB_ISO_USAGE_TYPE_IMPLICIT = 2,
146 LIBUSB_ERROR_IO = -1,
147 LIBUSB_ERROR_INVALID_PARAM = -2,
148 LIBUSB_ERROR_ACCESS = -3,
149 LIBUSB_ERROR_NO_DEVICE = -4,
150 LIBUSB_ERROR_NOT_FOUND = -5,
151 LIBUSB_ERROR_BUSY = -6,
152 LIBUSB_ERROR_TIMEOUT = -7,
153 LIBUSB_ERROR_OVERFLOW = -8,
154 LIBUSB_ERROR_PIPE = -9,
155 LIBUSB_ERROR_INTERRUPTED = -10,
156 LIBUSB_ERROR_NO_MEM = -11,
157 LIBUSB_ERROR_NOT_SUPPORTED = -12,
158 LIBUSB_ERROR_OTHER = -99,
161 enum libusb_transfer_status {
162 LIBUSB_TRANSFER_COMPLETED,
163 LIBUSB_TRANSFER_ERROR,
164 LIBUSB_TRANSFER_TIMED_OUT,
165 LIBUSB_TRANSFER_CANCELLED,
166 LIBUSB_TRANSFER_STALL,
167 LIBUSB_TRANSFER_NO_DEVICE,
168 LIBUSB_TRANSFER_OVERFLOW,
171 enum libusb_transfer_flags {
172 LIBUSB_TRANSFER_SHORT_NOT_OK = 1 << 0,
173 LIBUSB_TRANSFER_FREE_BUFFER = 1 << 1,
174 LIBUSB_TRANSFER_FREE_TRANSFER = 1 << 2,
177 enum libusb_debug_level {
179 LIBUSB_DEBUG_FUNCTION=1,
180 LIBUSB_DEBUG_TRANSFER=2,
183 /* libusb structures */
185 struct libusb_context;
186 struct libusb_device;
187 struct libusb_transfer;
188 struct libusb_device_handle;
190 struct libusb_pollfd {
195 typedef struct libusb_context libusb_context;
196 typedef struct libusb_device libusb_device;
197 typedef struct libusb_device_handle libusb_device_handle;
198 typedef struct libusb_pollfd libusb_pollfd;
199 typedef void (*libusb_pollfd_added_cb) (int fd, short events, void *user_data);
200 typedef void (*libusb_pollfd_removed_cb) (int fd, void *user_data);
202 typedef struct libusb_device_descriptor {
204 uint8_t bDescriptorType;
206 uint8_t bDeviceClass;
207 uint8_t bDeviceSubClass;
208 uint8_t bDeviceProtocol;
209 uint8_t bMaxPacketSize0;
213 uint8_t iManufacturer;
215 uint8_t iSerialNumber;
216 uint8_t bNumConfigurations;
217 } libusb_device_descriptor;
219 typedef struct libusb_endpoint_descriptor {
221 uint8_t bDescriptorType;
222 uint8_t bEndpointAddress;
223 uint8_t bmAttributes;
224 uint16_t wMaxPacketSize;
227 uint8_t bSynchAddress;
230 } libusb_endpoint_descriptor __aligned(sizeof(void *));
232 typedef struct libusb_interface_descriptor {
234 uint8_t bDescriptorType;
235 uint8_t bInterfaceNumber;
236 uint8_t bAlternateSetting;
237 uint8_t bNumEndpoints;
238 uint8_t bInterfaceClass;
239 uint8_t bInterfaceSubClass;
240 uint8_t bInterfaceProtocol;
242 struct libusb_endpoint_descriptor *endpoint;
245 } libusb_interface_descriptor __aligned(sizeof(void *));
247 typedef struct libusb_interface {
248 struct libusb_interface_descriptor *altsetting;
250 } libusb_interface __aligned(sizeof(void *));
252 typedef struct libusb_config_descriptor {
254 uint8_t bDescriptorType;
255 uint16_t wTotalLength;
256 uint8_t bNumInterfaces;
257 uint8_t bConfigurationValue;
258 uint8_t iConfiguration;
259 uint8_t bmAttributes;
261 struct libusb_interface *interface;
264 } libusb_config_descriptor __aligned(sizeof(void *));
266 typedef struct libusb_control_setup {
267 uint8_t bmRequestType;
272 } libusb_control_setup;
274 #define LIBUSB_CONTROL_SETUP_SIZE 8 /* bytes */
276 typedef struct libusb_iso_packet_descriptor {
278 uint32_t actual_length;
279 enum libusb_transfer_status status;
280 } libusb_iso_packet_descriptor __aligned(sizeof(void *));
282 typedef void (*libusb_transfer_cb_fn) (struct libusb_transfer *transfer);
284 typedef struct libusb_transfer {
285 libusb_device_handle *dev_handle;
290 enum libusb_transfer_status status;
293 libusb_transfer_cb_fn callback;
298 struct libusb_iso_packet_descriptor iso_packet_desc[0];
299 } libusb_transfer __aligned(sizeof(void *));
301 /* Library initialisation */
303 void libusb_set_debug(libusb_context * ctx, int level);
304 int libusb_init(libusb_context ** context);
305 void libusb_exit(struct libusb_context *ctx);
307 /* Device handling and enumeration */
309 ssize_t libusb_get_device_list(libusb_context * ctx, libusb_device *** list);
310 void libusb_free_device_list(libusb_device ** list, int unref_devices);
311 uint8_t libusb_get_bus_number(libusb_device * dev);
312 uint8_t libusb_get_device_address(libusb_device * dev);
313 int libusb_clear_halt(libusb_device_handle *devh, uint8_t endpoint);
314 int libusb_get_max_packet_size(libusb_device * dev, uint8_t endpoint);
315 libusb_device *libusb_ref_device(libusb_device * dev);
316 void libusb_unref_device(libusb_device * dev);
317 int libusb_open(libusb_device * dev, libusb_device_handle ** devh);
318 libusb_device_handle *libusb_open_device_with_vid_pid(libusb_context * ctx, uint16_t vendor_id, uint16_t product_id);
319 void libusb_close(libusb_device_handle * devh);
320 libusb_device *libusb_get_device(libusb_device_handle * devh);
321 int libusb_get_configuration(libusb_device_handle * devh, int *config);
322 int libusb_set_configuration(libusb_device_handle * devh, int configuration);
323 int libusb_claim_interface(libusb_device_handle * devh, int interface_number);
324 int libusb_release_interface(libusb_device_handle * devh, int interface_number);
325 int libusb_reset_device(libusb_device_handle * devh);
326 int libusb_kernel_driver_active(libusb_device_handle * devh, int interface);
327 int libusb_detach_kernel_driver(libusb_device_handle * devh, int interface);
328 int libusb_attach_kernel_driver(libusb_device_handle * devh, int interface);
329 int libusb_set_interface_alt_setting(libusb_device_handle * devh, int interface_number, int alternate_setting);
331 /* USB Descriptors */
333 int libusb_get_device_descriptor(libusb_device * dev, struct libusb_device_descriptor *desc);
334 int libusb_get_active_config_descriptor(libusb_device * dev, struct libusb_config_descriptor **config);
335 int libusb_get_config_descriptor(libusb_device * dev, uint8_t config_index, struct libusb_config_descriptor **config);
336 int libusb_get_config_descriptor_by_value(libusb_device * dev, uint8_t bConfigurationValue, struct libusb_config_descriptor **config);
337 void libusb_free_config_descriptor(struct libusb_config_descriptor *config);
338 int libusb_get_string_descriptor_ascii(libusb_device_handle * devh, uint8_t desc_index, uint8_t *data, int length);
339 int libusb_get_descriptor(libusb_device_handle * devh, uint8_t desc_type, uint8_t desc_index, uint8_t *data, int length);
341 /* Asynchronous device I/O */
343 struct libusb_transfer *libusb_alloc_transfer(int iso_packets);
344 void libusb_free_transfer(struct libusb_transfer *transfer);
345 int libusb_submit_transfer(struct libusb_transfer *transfer);
346 int libusb_cancel_transfer(struct libusb_transfer *transfer);
347 uint8_t *libusb_get_iso_packet_buffer(struct libusb_transfer *transfer, uint32_t index);
348 uint8_t *libusb_get_iso_packet_buffer_simple(struct libusb_transfer *transfer, uint32_t index);
349 void libusb_set_iso_packet_lengths(struct libusb_transfer *transfer, uint32_t length);
350 uint8_t *libusb_control_transfer_get_data(struct libusb_transfer *transfer);
351 struct libusb_control_setup *libusb_control_transfer_get_setup(struct libusb_transfer *transfer);
352 void libusb_fill_control_setup(uint8_t *buf, uint8_t bmRequestType, uint8_t bRequest, uint16_t wValue, uint16_t wIndex, uint16_t wLength);
353 void libusb_fill_control_transfer(struct libusb_transfer *transfer, libusb_device_handle *devh, uint8_t *buf, libusb_transfer_cb_fn callback, void *user_data, uint32_t timeout);
354 void libusb_fill_bulk_transfer(struct libusb_transfer *transfer, libusb_device_handle *devh, uint8_t endpoint, uint8_t *buf, int length, libusb_transfer_cb_fn callback, void *user_data, uint32_t timeout);
355 void libusb_fill_interrupt_transfer(struct libusb_transfer *transfer, libusb_device_handle *devh, uint8_t endpoint, uint8_t *buf, int length, libusb_transfer_cb_fn callback, void *user_data, uint32_t timeout);
356 void libusb_fill_iso_transfer(struct libusb_transfer *transfer, libusb_device_handle *devh, uint8_t endpoint, uint8_t *buf, int length, int npacket, libusb_transfer_cb_fn callback, void *user_data, uint32_t timeout);
358 /* Polling and timing */
360 int libusb_try_lock_events(libusb_context * ctx);
361 void libusb_lock_events(libusb_context * ctx);
362 void libusb_unlock_events(libusb_context * ctx);
363 int libusb_event_handling_ok(libusb_context * ctx);
364 int libusb_event_handler_active(libusb_context * ctx);
365 void libusb_lock_event_waiters(libusb_context * ctx);
366 void libusb_unlock_event_waiters(libusb_context * ctx);
367 int libusb_wait_for_event(libusb_context * ctx, struct timeval *tv);
368 int libusb_handle_events_timeout(libusb_context * ctx, struct timeval *tv);
369 int libusb_handle_events(libusb_context * ctx);
370 int libusb_handle_events_locked(libusb_context * ctx, struct timeval *tv);
371 int libusb_get_next_timeout(libusb_context * ctx, struct timeval *tv);
372 void libusb_set_pollfd_notifiers(libusb_context * ctx, libusb_pollfd_added_cb added_cb, libusb_pollfd_removed_cb removed_cb, void *user_data);
373 struct libusb_pollfd **libusb_get_pollfds(libusb_context * ctx);
375 /* Synchronous device I/O */
377 int libusb_control_transfer(libusb_device_handle * devh, uint8_t bmRequestType, uint8_t bRequest, uint16_t wValue, uint16_t wIndex, uint8_t *data, uint16_t wLength, uint32_t timeout);
378 int libusb_bulk_transfer(libusb_device_handle * devh, uint8_t endpoint, uint8_t *data, int length, int *transferred, uint32_t timeout);
379 int libusb_interrupt_transfer(libusb_device_handle * devh, uint8_t endpoint, uint8_t *data, int length, int *transferred, uint32_t timeout);
383 uint16_t libusb_cpu_to_le16(uint16_t x);
384 uint16_t libusb_le16_to_cpu(uint16_t x);
394 #endif /* __LIBUSB_H__ */