1 /* $FreeBSD: head/lib/libusb/libusb.h 277245 2015-01-16 12:11:01Z hselasky $ */ 2 /*- 3 * Copyright (c) 2009 Sylvestre Gallon. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 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. 13 * 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 24 * SUCH DAMAGE. 25 */ 26 27 #ifndef __LIBUSB_H__ 28 #define __LIBUSB_H__ 29 30 #ifndef LIBUSB_GLOBAL_INCLUDE_FILE 31 #include <stdint.h> 32 #include <sys/time.h> 33 #include <sys/types.h> 34 #endif 35 36 #define LIBUSB_CALL 37 38 #ifdef __cplusplus 39 extern "C" { 40 #endif 41 #if 0 42 } /* indent fix */ 43 44 #endif 45 46 /* libusb enums */ 47 48 enum libusb_class_code { 49 LIBUSB_CLASS_PER_INTERFACE = 0, 50 LIBUSB_CLASS_AUDIO = 1, 51 LIBUSB_CLASS_COMM = 2, 52 LIBUSB_CLASS_HID = 3, 53 LIBUSB_CLASS_PTP = 6, 54 LIBUSB_CLASS_IMAGE = 6, 55 LIBUSB_CLASS_PRINTER = 7, 56 LIBUSB_CLASS_MASS_STORAGE = 8, 57 LIBUSB_CLASS_HUB = 9, 58 LIBUSB_CLASS_DATA = 10, 59 LIBUSB_CLASS_SMART_CARD = 11, 60 LIBUSB_CLASS_CONTENT_SECURITY = 13, 61 LIBUSB_CLASS_VIDEO = 14, 62 LIBUSB_CLASS_PERSONAL_HEALTHCARE = 15, 63 LIBUSB_CLASS_DIAGNOSTIC_DEVICE = 0xdc, 64 LIBUSB_CLASS_WIRELESS = 0xe0, 65 LIBUSB_CLASS_APPLICATION = 0xfe, 66 LIBUSB_CLASS_VENDOR_SPEC = 0xff, 67 }; 68 69 enum libusb_descriptor_type { 70 LIBUSB_DT_DEVICE = 0x01, 71 LIBUSB_DT_CONFIG = 0x02, 72 LIBUSB_DT_STRING = 0x03, 73 LIBUSB_DT_INTERFACE = 0x04, 74 LIBUSB_DT_ENDPOINT = 0x05, 75 LIBUSB_DT_HID = 0x21, 76 LIBUSB_DT_REPORT = 0x22, 77 LIBUSB_DT_PHYSICAL = 0x23, 78 LIBUSB_DT_HUB = 0x29, 79 LIBUSB_DT_BOS = 0x0f, 80 LIBUSB_DT_DEVICE_CAPABILITY = 0x10, 81 LIBUSB_DT_SS_ENDPOINT_COMPANION = 0x30, 82 }; 83 84 enum libusb_device_capability_type { 85 LIBUSB_WIRELESS_USB_DEVICE_CAPABILITY = 0x1, 86 LIBUSB_USB_2_0_EXTENSION_DEVICE_CAPABILITY = 0x2, 87 LIBUSB_SS_USB_DEVICE_CAPABILITY = 0x3, 88 LIBUSB_CONTAINER_ID_DEVICE_CAPABILITY = 0x4, 89 }; 90 91 #define LIBUSB_DT_DEVICE_SIZE 18 92 #define LIBUSB_DT_CONFIG_SIZE 9 93 #define LIBUSB_DT_INTERFACE_SIZE 9 94 #define LIBUSB_DT_ENDPOINT_SIZE 7 95 #define LIBUSB_DT_ENDPOINT_AUDIO_SIZE 9 96 #define LIBUSB_DT_HUB_NONVAR_SIZE 7 97 #define LIBUSB_DT_SS_ENDPOINT_COMPANION_SIZE 6 98 #define LIBUSB_DT_BOS_SIZE 5 99 #define LIBUSB_USB_2_0_EXTENSION_DEVICE_CAPABILITY_SIZE 7 100 #define LIBUSB_SS_USB_DEVICE_CAPABILITY_SIZE 10 101 102 #define LIBUSB_ENDPOINT_ADDRESS_MASK 0x0f 103 #define LIBUSB_ENDPOINT_DIR_MASK 0x80 104 105 enum libusb_endpoint_direction { 106 LIBUSB_ENDPOINT_IN = 0x80, 107 LIBUSB_ENDPOINT_OUT = 0x00, 108 }; 109 110 #define LIBUSB_TRANSFER_TYPE_MASK 0x03 111 112 enum libusb_transfer_type { 113 LIBUSB_TRANSFER_TYPE_CONTROL = 0, 114 LIBUSB_TRANSFER_TYPE_ISOCHRONOUS = 1, 115 LIBUSB_TRANSFER_TYPE_BULK = 2, 116 LIBUSB_TRANSFER_TYPE_INTERRUPT = 3, 117 }; 118 119 enum libusb_standard_request { 120 LIBUSB_REQUEST_GET_STATUS = 0x00, 121 LIBUSB_REQUEST_CLEAR_FEATURE = 0x01, 122 LIBUSB_REQUEST_SET_FEATURE = 0x03, 123 LIBUSB_REQUEST_SET_ADDRESS = 0x05, 124 LIBUSB_REQUEST_GET_DESCRIPTOR = 0x06, 125 LIBUSB_REQUEST_SET_DESCRIPTOR = 0x07, 126 LIBUSB_REQUEST_GET_CONFIGURATION = 0x08, 127 LIBUSB_REQUEST_SET_CONFIGURATION = 0x09, 128 LIBUSB_REQUEST_GET_INTERFACE = 0x0A, 129 LIBUSB_REQUEST_SET_INTERFACE = 0x0B, 130 LIBUSB_REQUEST_SYNCH_FRAME = 0x0C, 131 LIBUSB_REQUEST_SET_SEL = 0x30, 132 LIBUSB_REQUEST_SET_ISOCH_DELAY = 0x31, 133 }; 134 135 enum libusb_request_type { 136 LIBUSB_REQUEST_TYPE_STANDARD = (0x00 << 5), 137 LIBUSB_REQUEST_TYPE_CLASS = (0x01 << 5), 138 LIBUSB_REQUEST_TYPE_VENDOR = (0x02 << 5), 139 LIBUSB_REQUEST_TYPE_RESERVED = (0x03 << 5), 140 }; 141 142 enum libusb_request_recipient { 143 LIBUSB_RECIPIENT_DEVICE = 0x00, 144 LIBUSB_RECIPIENT_INTERFACE = 0x01, 145 LIBUSB_RECIPIENT_ENDPOINT = 0x02, 146 LIBUSB_RECIPIENT_OTHER = 0x03, 147 }; 148 149 #define LIBUSB_ISO_SYNC_TYPE_MASK 0x0C 150 151 enum libusb_iso_sync_type { 152 LIBUSB_ISO_SYNC_TYPE_NONE = 0, 153 LIBUSB_ISO_SYNC_TYPE_ASYNC = 1, 154 LIBUSB_ISO_SYNC_TYPE_ADAPTIVE = 2, 155 LIBUSB_ISO_SYNC_TYPE_SYNC = 3, 156 }; 157 158 #define LIBUSB_ISO_USAGE_TYPE_MASK 0x30 159 160 enum libusb_iso_usage_type { 161 LIBUSB_ISO_USAGE_TYPE_DATA = 0, 162 LIBUSB_ISO_USAGE_TYPE_FEEDBACK = 1, 163 LIBUSB_ISO_USAGE_TYPE_IMPLICIT = 2, 164 }; 165 166 enum libusb_error { 167 LIBUSB_SUCCESS = 0, 168 LIBUSB_ERROR_IO = -1, 169 LIBUSB_ERROR_INVALID_PARAM = -2, 170 LIBUSB_ERROR_ACCESS = -3, 171 LIBUSB_ERROR_NO_DEVICE = -4, 172 LIBUSB_ERROR_NOT_FOUND = -5, 173 LIBUSB_ERROR_BUSY = -6, 174 LIBUSB_ERROR_TIMEOUT = -7, 175 LIBUSB_ERROR_OVERFLOW = -8, 176 LIBUSB_ERROR_PIPE = -9, 177 LIBUSB_ERROR_INTERRUPTED = -10, 178 LIBUSB_ERROR_NO_MEM = -11, 179 LIBUSB_ERROR_NOT_SUPPORTED = -12, 180 LIBUSB_ERROR_OTHER = -99, 181 }; 182 183 enum libusb_speed { 184 LIBUSB_SPEED_UNKNOWN = 0, 185 LIBUSB_SPEED_LOW = 1, 186 LIBUSB_SPEED_FULL = 2, 187 LIBUSB_SPEED_HIGH = 3, 188 LIBUSB_SPEED_SUPER = 4, 189 }; 190 191 enum libusb_transfer_status { 192 LIBUSB_TRANSFER_COMPLETED, 193 LIBUSB_TRANSFER_ERROR, 194 LIBUSB_TRANSFER_TIMED_OUT, 195 LIBUSB_TRANSFER_CANCELLED, 196 LIBUSB_TRANSFER_STALL, 197 LIBUSB_TRANSFER_NO_DEVICE, 198 LIBUSB_TRANSFER_OVERFLOW, 199 }; 200 201 enum libusb_transfer_flags { 202 LIBUSB_TRANSFER_SHORT_NOT_OK = 1 << 0, 203 LIBUSB_TRANSFER_FREE_BUFFER = 1 << 1, 204 LIBUSB_TRANSFER_FREE_TRANSFER = 1 << 2, 205 }; 206 207 enum libusb_log_level { 208 LIBUSB_LOG_LEVEL_NONE = 0, 209 LIBUSB_LOG_LEVEL_ERROR, 210 LIBUSB_LOG_LEVEL_WARNING, 211 LIBUSB_LOG_LEVEL_INFO, 212 LIBUSB_LOG_LEVEL_DEBUG 213 }; 214 215 /* 216 * XXX 217 * libusb_set_debug should take parameters from libusb_log_level 218 * above according to 219 * http://libusb.sourceforge.net/api-1.0/group__lib.html 220 */ 221 enum libusb_debug_level { 222 LIBUSB_DEBUG_NO=0, 223 LIBUSB_DEBUG_FUNCTION=1, 224 LIBUSB_DEBUG_TRANSFER=2, 225 }; 226 227 /* libusb structures */ 228 229 struct libusb_context; 230 struct libusb_device; 231 struct libusb_transfer; 232 struct libusb_device_handle; 233 234 struct libusb_pollfd { 235 int fd; 236 short events; 237 }; 238 239 typedef struct libusb_context libusb_context; 240 typedef struct libusb_device libusb_device; 241 typedef struct libusb_device_handle libusb_device_handle; 242 typedef struct libusb_pollfd libusb_pollfd; 243 typedef void (*libusb_pollfd_added_cb) (int fd, short events, void *user_data); 244 typedef void (*libusb_pollfd_removed_cb) (int fd, void *user_data); 245 246 typedef struct libusb_device_descriptor { 247 uint8_t bLength; 248 uint8_t bDescriptorType; 249 uint16_t bcdUSB; 250 uint8_t bDeviceClass; 251 uint8_t bDeviceSubClass; 252 uint8_t bDeviceProtocol; 253 uint8_t bMaxPacketSize0; 254 uint16_t idVendor; 255 uint16_t idProduct; 256 uint16_t bcdDevice; 257 uint8_t iManufacturer; 258 uint8_t iProduct; 259 uint8_t iSerialNumber; 260 uint8_t bNumConfigurations; 261 } libusb_device_descriptor; 262 263 typedef struct libusb_endpoint_descriptor { 264 uint8_t bLength; 265 uint8_t bDescriptorType; 266 uint8_t bEndpointAddress; 267 uint8_t bmAttributes; 268 uint16_t wMaxPacketSize; 269 uint8_t bInterval; 270 uint8_t bRefresh; 271 uint8_t bSynchAddress; 272 uint8_t *extra; 273 int extra_length; 274 } libusb_endpoint_descriptor __aligned(sizeof(void *)); 275 276 typedef struct libusb_ss_endpoint_companion_descriptor { 277 uint8_t bLength; 278 uint8_t bDescriptorType; 279 uint8_t bMaxBurst; 280 uint8_t bmAttributes; 281 uint16_t wBytesPerInterval; 282 } libusb_ss_endpoint_companion_descriptor __aligned(sizeof(void *)); 283 284 typedef struct libusb_interface_descriptor { 285 uint8_t bLength; 286 uint8_t bDescriptorType; 287 uint8_t bInterfaceNumber; 288 uint8_t bAlternateSetting; 289 uint8_t bNumEndpoints; 290 uint8_t bInterfaceClass; 291 uint8_t bInterfaceSubClass; 292 uint8_t bInterfaceProtocol; 293 uint8_t iInterface; 294 struct libusb_endpoint_descriptor *endpoint; 295 uint8_t *extra; 296 int extra_length; 297 } libusb_interface_descriptor __aligned(sizeof(void *)); 298 299 typedef struct libusb_interface { 300 struct libusb_interface_descriptor *altsetting; 301 int num_altsetting; 302 } libusb_interface __aligned(sizeof(void *)); 303 304 typedef struct libusb_config_descriptor { 305 uint8_t bLength; 306 uint8_t bDescriptorType; 307 uint16_t wTotalLength; 308 uint8_t bNumInterfaces; 309 uint8_t bConfigurationValue; 310 uint8_t iConfiguration; 311 uint8_t bmAttributes; 312 uint8_t MaxPower; 313 struct libusb_interface *interface; 314 uint8_t *extra; 315 int extra_length; 316 } libusb_config_descriptor __aligned(sizeof(void *)); 317 318 typedef struct libusb_usb_2_0_device_capability_descriptor { 319 uint8_t bLength; 320 uint8_t bDescriptorType; 321 uint8_t bDevCapabilityType; 322 uint32_t bmAttributes; 323 #define LIBUSB_USB_2_0_CAPABILITY_LPM_SUPPORT (1 << 1) 324 } libusb_usb_2_0_device_capability_descriptor __aligned(sizeof(void *)); 325 326 typedef struct libusb_ss_usb_device_capability_descriptor { 327 uint8_t bLength; 328 uint8_t bDescriptorType; 329 uint8_t bDevCapabilityType; 330 uint8_t bmAttributes; 331 #define LIBUSB_SS_USB_CAPABILITY_LPM_SUPPORT (1 << 1) 332 uint16_t wSpeedSupported; 333 #define LIBUSB_CAPABILITY_LOW_SPEED_OPERATION (1) 334 #define LIBUSB_CAPABILITY_FULL_SPEED_OPERATION (1 << 1) 335 #define LIBUSB_CAPABILITY_HIGH_SPEED_OPERATION (1 << 2) 336 #define LIBUSB_CAPABILITY_5GBPS_OPERATION (1 << 3) 337 uint8_t bFunctionalitySupport; 338 uint8_t bU1DevExitLat; 339 uint16_t wU2DevExitLat; 340 } libusb_ss_usb_device_capability_descriptor __aligned(sizeof(void *)); 341 342 typedef struct libusb_bos_descriptor { 343 uint8_t bLength; 344 uint8_t bDescriptorType; 345 uint16_t wTotalLength; 346 uint8_t bNumDeviceCapabilities; 347 struct libusb_usb_2_0_device_capability_descriptor *usb_2_0_ext_cap; 348 struct libusb_ss_usb_device_capability_descriptor *ss_usb_cap; 349 } libusb_bos_descriptor __aligned(sizeof(void *)); 350 351 typedef struct libusb_control_setup { 352 uint8_t bmRequestType; 353 uint8_t bRequest; 354 uint16_t wValue; 355 uint16_t wIndex; 356 uint16_t wLength; 357 } libusb_control_setup; 358 359 #define LIBUSB_CONTROL_SETUP_SIZE 8 /* bytes */ 360 361 typedef struct libusb_iso_packet_descriptor { 362 uint32_t length; 363 uint32_t actual_length; 364 enum libusb_transfer_status status; 365 } libusb_iso_packet_descriptor __aligned(sizeof(void *)); 366 367 typedef void (*libusb_transfer_cb_fn) (struct libusb_transfer *transfer); 368 369 typedef struct libusb_transfer { 370 libusb_device_handle *dev_handle; 371 uint8_t flags; 372 uint8_t endpoint; 373 uint8_t type; 374 uint32_t timeout; 375 enum libusb_transfer_status status; 376 int length; 377 int actual_length; 378 libusb_transfer_cb_fn callback; 379 void *user_data; 380 uint8_t *buffer; 381 int num_iso_packets; 382 struct libusb_iso_packet_descriptor iso_packet_desc[0]; 383 } libusb_transfer __aligned(sizeof(void *)); 384 385 /* Library initialisation */ 386 387 void libusb_set_debug(libusb_context * ctx, int level); 388 const char *libusb_strerror(int code); 389 const char *libusb_error_name(int code); 390 int libusb_init(libusb_context ** context); 391 void libusb_exit(struct libusb_context *ctx); 392 393 /* Device handling and enumeration */ 394 395 ssize_t libusb_get_device_list(libusb_context * ctx, libusb_device *** list); 396 void libusb_free_device_list(libusb_device ** list, int unref_devices); 397 uint8_t libusb_get_bus_number(libusb_device * dev); 398 int libusb_get_port_numbers(libusb_device *dev, uint8_t *buf, uint8_t bufsize); 399 int libusb_get_port_path(libusb_context *ctx, libusb_device *dev, uint8_t *buf, uint8_t bufsize); 400 uint8_t libusb_get_device_address(libusb_device * dev); 401 enum libusb_speed libusb_get_device_speed(libusb_device * dev); 402 int libusb_clear_halt(libusb_device_handle *devh, uint8_t endpoint); 403 int libusb_get_max_packet_size(libusb_device * dev, uint8_t endpoint); 404 int libusb_get_max_iso_packet_size(libusb_device * dev, uint8_t endpoint); 405 libusb_device *libusb_ref_device(libusb_device * dev); 406 void libusb_unref_device(libusb_device * dev); 407 int libusb_open(libusb_device * dev, libusb_device_handle ** devh); 408 libusb_device_handle *libusb_open_device_with_vid_pid(libusb_context * ctx, uint16_t vendor_id, uint16_t product_id); 409 void libusb_close(libusb_device_handle * devh); 410 libusb_device *libusb_get_device(libusb_device_handle * devh); 411 int libusb_get_configuration(libusb_device_handle * devh, int *config); 412 int libusb_set_configuration(libusb_device_handle * devh, int configuration); 413 int libusb_claim_interface(libusb_device_handle * devh, int interface_number); 414 int libusb_release_interface(libusb_device_handle * devh, int interface_number); 415 int libusb_reset_device(libusb_device_handle * devh); 416 int libusb_check_connected(libusb_device_handle * devh); 417 int libusb_kernel_driver_active(libusb_device_handle * devh, int interface); 418 int libusb_get_driver_np(libusb_device_handle * devh, int interface, char *name, int namelen); 419 int libusb_get_driver(libusb_device_handle * devh, int interface, char *name, int namelen); 420 int libusb_detach_kernel_driver_np(libusb_device_handle * devh, int interface); 421 int libusb_detach_kernel_driver(libusb_device_handle * devh, int interface); 422 int libusb_attach_kernel_driver(libusb_device_handle * devh, int interface); 423 int libusb_set_interface_alt_setting(libusb_device_handle * devh, int interface_number, int alternate_setting); 424 425 /* USB Descriptors */ 426 427 int libusb_get_device_descriptor(libusb_device * dev, struct libusb_device_descriptor *desc); 428 int libusb_get_active_config_descriptor(libusb_device * dev, struct libusb_config_descriptor **config); 429 int libusb_get_config_descriptor(libusb_device * dev, uint8_t config_index, struct libusb_config_descriptor **config); 430 int libusb_get_config_descriptor_by_value(libusb_device * dev, uint8_t bConfigurationValue, struct libusb_config_descriptor **config); 431 void libusb_free_config_descriptor(struct libusb_config_descriptor *config); 432 int libusb_get_string_descriptor(libusb_device_handle * devh, uint8_t desc_index, uint16_t langid, unsigned char *data, int length); 433 int libusb_get_string_descriptor_ascii(libusb_device_handle * devh, uint8_t desc_index, uint8_t *data, int length); 434 int libusb_get_descriptor(libusb_device_handle * devh, uint8_t desc_type, uint8_t desc_index, uint8_t *data, int length); 435 int libusb_parse_ss_endpoint_comp(const void *buf, int len, struct libusb_ss_endpoint_companion_descriptor **ep_comp); 436 void libusb_free_ss_endpoint_comp(struct libusb_ss_endpoint_companion_descriptor *ep_comp); 437 int libusb_parse_bos_descriptor(const void *buf, int len, struct libusb_bos_descriptor **bos); 438 void libusb_free_bos_descriptor(struct libusb_bos_descriptor *bos); 439 440 /* Asynchronous device I/O */ 441 442 struct libusb_transfer *libusb_alloc_transfer(int iso_packets); 443 void libusb_free_transfer(struct libusb_transfer *transfer); 444 int libusb_submit_transfer(struct libusb_transfer *transfer); 445 int libusb_cancel_transfer(struct libusb_transfer *transfer); 446 uint8_t *libusb_get_iso_packet_buffer(struct libusb_transfer *transfer, uint32_t index); 447 uint8_t *libusb_get_iso_packet_buffer_simple(struct libusb_transfer *transfer, uint32_t index); 448 void libusb_set_iso_packet_lengths(struct libusb_transfer *transfer, uint32_t length); 449 uint8_t *libusb_control_transfer_get_data(struct libusb_transfer *transfer); 450 struct libusb_control_setup *libusb_control_transfer_get_setup(struct libusb_transfer *transfer); 451 void libusb_fill_control_setup(uint8_t *buf, uint8_t bmRequestType, uint8_t bRequest, uint16_t wValue, uint16_t wIndex, uint16_t wLength); 452 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); 453 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); 454 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); 455 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); 456 457 /* Polling and timing */ 458 459 int libusb_try_lock_events(libusb_context * ctx); 460 void libusb_lock_events(libusb_context * ctx); 461 void libusb_unlock_events(libusb_context * ctx); 462 int libusb_event_handling_ok(libusb_context * ctx); 463 int libusb_event_handler_active(libusb_context * ctx); 464 void libusb_lock_event_waiters(libusb_context * ctx); 465 void libusb_unlock_event_waiters(libusb_context * ctx); 466 int libusb_wait_for_event(libusb_context * ctx, struct timeval *tv); 467 int libusb_handle_events_timeout_completed(libusb_context * ctx, struct timeval *tv, int *completed); 468 int libusb_handle_events_completed(libusb_context * ctx, int *completed); 469 int libusb_handle_events_timeout(libusb_context * ctx, struct timeval *tv); 470 int libusb_handle_events(libusb_context * ctx); 471 int libusb_handle_events_locked(libusb_context * ctx, struct timeval *tv); 472 int libusb_get_next_timeout(libusb_context * ctx, struct timeval *tv); 473 void libusb_set_pollfd_notifiers(libusb_context * ctx, libusb_pollfd_added_cb added_cb, libusb_pollfd_removed_cb removed_cb, void *user_data); 474 const struct libusb_pollfd **libusb_get_pollfds(libusb_context * ctx); 475 476 /* Synchronous device I/O */ 477 478 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); 479 int libusb_bulk_transfer(libusb_device_handle * devh, uint8_t endpoint, uint8_t *data, int length, int *transferred, uint32_t timeout); 480 int libusb_interrupt_transfer(libusb_device_handle * devh, uint8_t endpoint, uint8_t *data, int length, int *transferred, uint32_t timeout); 481 482 /* Byte-order */ 483 484 uint16_t libusb_cpu_to_le16(uint16_t x); 485 uint16_t libusb_le16_to_cpu(uint16_t x); 486 487 #if 0 488 { /* indent fix */ 489 #endif 490 #ifdef __cplusplus 491 } 492 493 #endif 494 495 #endif /* __LIBUSB_H__ */ 496