libusb.h revision 301964
1/* $FreeBSD: head/lib/libusb/libusb.h 301964 2016-06-16 12:14:19Z 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_API_VERSION 0x01000102 37 38#define LIBUSB_CALL 39 40#ifdef __cplusplus 41extern "C" { 42#endif 43#if 0 44} /* indent fix */ 45 46#endif 47 48/* libusb enums */ 49 50enum libusb_class_code { 51 LIBUSB_CLASS_PER_INTERFACE = 0, 52 LIBUSB_CLASS_AUDIO = 1, 53 LIBUSB_CLASS_COMM = 2, 54 LIBUSB_CLASS_HID = 3, 55 LIBUSB_CLASS_PTP = 6, 56 LIBUSB_CLASS_IMAGE = 6, 57 LIBUSB_CLASS_PRINTER = 7, 58 LIBUSB_CLASS_MASS_STORAGE = 8, 59 LIBUSB_CLASS_HUB = 9, 60 LIBUSB_CLASS_DATA = 10, 61 LIBUSB_CLASS_SMART_CARD = 11, 62 LIBUSB_CLASS_CONTENT_SECURITY = 13, 63 LIBUSB_CLASS_VIDEO = 14, 64 LIBUSB_CLASS_PERSONAL_HEALTHCARE = 15, 65 LIBUSB_CLASS_DIAGNOSTIC_DEVICE = 0xdc, 66 LIBUSB_CLASS_WIRELESS = 0xe0, 67 LIBUSB_CLASS_APPLICATION = 0xfe, 68 LIBUSB_CLASS_VENDOR_SPEC = 0xff, 69}; 70 71enum libusb_descriptor_type { 72 LIBUSB_DT_DEVICE = 0x01, 73 LIBUSB_DT_CONFIG = 0x02, 74 LIBUSB_DT_STRING = 0x03, 75 LIBUSB_DT_INTERFACE = 0x04, 76 LIBUSB_DT_ENDPOINT = 0x05, 77 LIBUSB_DT_HID = 0x21, 78 LIBUSB_DT_REPORT = 0x22, 79 LIBUSB_DT_PHYSICAL = 0x23, 80 LIBUSB_DT_HUB = 0x29, 81 LIBUSB_DT_BOS = 0x0f, 82 LIBUSB_DT_DEVICE_CAPABILITY = 0x10, 83 LIBUSB_DT_SS_ENDPOINT_COMPANION = 0x30, 84}; 85 86enum libusb_device_capability_type { 87 LIBUSB_WIRELESS_USB_DEVICE_CAPABILITY = 0x1, 88 LIBUSB_USB_2_0_EXTENSION_DEVICE_CAPABILITY = 0x2, 89 LIBUSB_SS_USB_DEVICE_CAPABILITY = 0x3, 90 LIBUSB_CONTAINER_ID_DEVICE_CAPABILITY = 0x4, 91}; 92 93#define LIBUSB_DT_DEVICE_SIZE 18 94#define LIBUSB_DT_CONFIG_SIZE 9 95#define LIBUSB_DT_INTERFACE_SIZE 9 96#define LIBUSB_DT_ENDPOINT_SIZE 7 97#define LIBUSB_DT_ENDPOINT_AUDIO_SIZE 9 98#define LIBUSB_DT_HUB_NONVAR_SIZE 7 99#define LIBUSB_DT_SS_ENDPOINT_COMPANION_SIZE 6 100#define LIBUSB_DT_BOS_SIZE 5 101#define LIBUSB_USB_2_0_EXTENSION_DEVICE_CAPABILITY_SIZE 7 102#define LIBUSB_SS_USB_DEVICE_CAPABILITY_SIZE 10 103 104#define LIBUSB_ENDPOINT_ADDRESS_MASK 0x0f 105#define LIBUSB_ENDPOINT_DIR_MASK 0x80 106 107enum libusb_endpoint_direction { 108 LIBUSB_ENDPOINT_IN = 0x80, 109 LIBUSB_ENDPOINT_OUT = 0x00, 110}; 111 112#define LIBUSB_TRANSFER_TYPE_MASK 0x03 113 114enum libusb_transfer_type { 115 LIBUSB_TRANSFER_TYPE_CONTROL = 0, 116 LIBUSB_TRANSFER_TYPE_ISOCHRONOUS = 1, 117 LIBUSB_TRANSFER_TYPE_BULK = 2, 118 LIBUSB_TRANSFER_TYPE_INTERRUPT = 3, 119}; 120 121enum libusb_standard_request { 122 LIBUSB_REQUEST_GET_STATUS = 0x00, 123 LIBUSB_REQUEST_CLEAR_FEATURE = 0x01, 124 LIBUSB_REQUEST_SET_FEATURE = 0x03, 125 LIBUSB_REQUEST_SET_ADDRESS = 0x05, 126 LIBUSB_REQUEST_GET_DESCRIPTOR = 0x06, 127 LIBUSB_REQUEST_SET_DESCRIPTOR = 0x07, 128 LIBUSB_REQUEST_GET_CONFIGURATION = 0x08, 129 LIBUSB_REQUEST_SET_CONFIGURATION = 0x09, 130 LIBUSB_REQUEST_GET_INTERFACE = 0x0A, 131 LIBUSB_REQUEST_SET_INTERFACE = 0x0B, 132 LIBUSB_REQUEST_SYNCH_FRAME = 0x0C, 133 LIBUSB_REQUEST_SET_SEL = 0x30, 134 LIBUSB_REQUEST_SET_ISOCH_DELAY = 0x31, 135}; 136 137enum libusb_request_type { 138 LIBUSB_REQUEST_TYPE_STANDARD = (0x00 << 5), 139 LIBUSB_REQUEST_TYPE_CLASS = (0x01 << 5), 140 LIBUSB_REQUEST_TYPE_VENDOR = (0x02 << 5), 141 LIBUSB_REQUEST_TYPE_RESERVED = (0x03 << 5), 142}; 143 144enum libusb_request_recipient { 145 LIBUSB_RECIPIENT_DEVICE = 0x00, 146 LIBUSB_RECIPIENT_INTERFACE = 0x01, 147 LIBUSB_RECIPIENT_ENDPOINT = 0x02, 148 LIBUSB_RECIPIENT_OTHER = 0x03, 149}; 150 151#define LIBUSB_ISO_SYNC_TYPE_MASK 0x0C 152 153enum libusb_iso_sync_type { 154 LIBUSB_ISO_SYNC_TYPE_NONE = 0, 155 LIBUSB_ISO_SYNC_TYPE_ASYNC = 1, 156 LIBUSB_ISO_SYNC_TYPE_ADAPTIVE = 2, 157 LIBUSB_ISO_SYNC_TYPE_SYNC = 3, 158}; 159 160#define LIBUSB_ISO_USAGE_TYPE_MASK 0x30 161 162enum libusb_iso_usage_type { 163 LIBUSB_ISO_USAGE_TYPE_DATA = 0, 164 LIBUSB_ISO_USAGE_TYPE_FEEDBACK = 1, 165 LIBUSB_ISO_USAGE_TYPE_IMPLICIT = 2, 166}; 167 168enum libusb_error { 169 LIBUSB_SUCCESS = 0, 170 LIBUSB_ERROR_IO = -1, 171 LIBUSB_ERROR_INVALID_PARAM = -2, 172 LIBUSB_ERROR_ACCESS = -3, 173 LIBUSB_ERROR_NO_DEVICE = -4, 174 LIBUSB_ERROR_NOT_FOUND = -5, 175 LIBUSB_ERROR_BUSY = -6, 176 LIBUSB_ERROR_TIMEOUT = -7, 177 LIBUSB_ERROR_OVERFLOW = -8, 178 LIBUSB_ERROR_PIPE = -9, 179 LIBUSB_ERROR_INTERRUPTED = -10, 180 LIBUSB_ERROR_NO_MEM = -11, 181 LIBUSB_ERROR_NOT_SUPPORTED = -12, 182 LIBUSB_ERROR_OTHER = -99, 183}; 184 185enum libusb_speed { 186 LIBUSB_SPEED_UNKNOWN = 0, 187 LIBUSB_SPEED_LOW = 1, 188 LIBUSB_SPEED_FULL = 2, 189 LIBUSB_SPEED_HIGH = 3, 190 LIBUSB_SPEED_SUPER = 4, 191}; 192 193enum libusb_transfer_status { 194 LIBUSB_TRANSFER_COMPLETED, 195 LIBUSB_TRANSFER_ERROR, 196 LIBUSB_TRANSFER_TIMED_OUT, 197 LIBUSB_TRANSFER_CANCELLED, 198 LIBUSB_TRANSFER_STALL, 199 LIBUSB_TRANSFER_NO_DEVICE, 200 LIBUSB_TRANSFER_OVERFLOW, 201}; 202 203enum libusb_transfer_flags { 204 LIBUSB_TRANSFER_SHORT_NOT_OK = 1 << 0, 205 LIBUSB_TRANSFER_FREE_BUFFER = 1 << 1, 206 LIBUSB_TRANSFER_FREE_TRANSFER = 1 << 2, 207}; 208 209enum libusb_log_level { 210 LIBUSB_LOG_LEVEL_NONE = 0, 211 LIBUSB_LOG_LEVEL_ERROR, 212 LIBUSB_LOG_LEVEL_WARNING, 213 LIBUSB_LOG_LEVEL_INFO, 214 LIBUSB_LOG_LEVEL_DEBUG 215}; 216 217/* XXX */ 218/* libusb_set_debug should take parameters from libusb_log_level 219 * above according to 220 * http://libusb.sourceforge.net/api-1.0/group__lib.html 221 */ 222enum libusb_debug_level { 223 LIBUSB_DEBUG_NO=0, 224 LIBUSB_DEBUG_FUNCTION=1, 225 LIBUSB_DEBUG_TRANSFER=2, 226}; 227 228/* libusb structures */ 229 230struct libusb_context; 231struct libusb_device; 232struct libusb_transfer; 233struct libusb_device_handle; 234 235struct libusb_pollfd { 236 int fd; 237 short events; 238}; 239 240struct libusb_version { 241 const uint16_t major; 242 const uint16_t minor; 243 const uint16_t micro; 244 const uint16_t nano; 245 const char *rc; 246 const char *describe; 247}; 248 249typedef struct libusb_context libusb_context; 250typedef struct libusb_device libusb_device; 251typedef struct libusb_device_handle libusb_device_handle; 252typedef struct libusb_pollfd libusb_pollfd; 253typedef void (*libusb_pollfd_added_cb) (int fd, short events, void *user_data); 254typedef void (*libusb_pollfd_removed_cb) (int fd, void *user_data); 255 256typedef struct libusb_device_descriptor { 257 uint8_t bLength; 258 uint8_t bDescriptorType; 259 uint16_t bcdUSB; 260 uint8_t bDeviceClass; 261 uint8_t bDeviceSubClass; 262 uint8_t bDeviceProtocol; 263 uint8_t bMaxPacketSize0; 264 uint16_t idVendor; 265 uint16_t idProduct; 266 uint16_t bcdDevice; 267 uint8_t iManufacturer; 268 uint8_t iProduct; 269 uint8_t iSerialNumber; 270 uint8_t bNumConfigurations; 271} libusb_device_descriptor; 272 273typedef struct libusb_endpoint_descriptor { 274 uint8_t bLength; 275 uint8_t bDescriptorType; 276 uint8_t bEndpointAddress; 277 uint8_t bmAttributes; 278 uint16_t wMaxPacketSize; 279 uint8_t bInterval; 280 uint8_t bRefresh; 281 uint8_t bSynchAddress; 282 uint8_t *extra; 283 int extra_length; 284} libusb_endpoint_descriptor __aligned(sizeof(void *)); 285 286typedef struct libusb_ss_endpoint_companion_descriptor { 287 uint8_t bLength; 288 uint8_t bDescriptorType; 289 uint8_t bMaxBurst; 290 uint8_t bmAttributes; 291 uint16_t wBytesPerInterval; 292} libusb_ss_endpoint_companion_descriptor __aligned(sizeof(void *)); 293 294typedef struct libusb_interface_descriptor { 295 uint8_t bLength; 296 uint8_t bDescriptorType; 297 uint8_t bInterfaceNumber; 298 uint8_t bAlternateSetting; 299 uint8_t bNumEndpoints; 300 uint8_t bInterfaceClass; 301 uint8_t bInterfaceSubClass; 302 uint8_t bInterfaceProtocol; 303 uint8_t iInterface; 304 struct libusb_endpoint_descriptor *endpoint; 305 uint8_t *extra; 306 int extra_length; 307} libusb_interface_descriptor __aligned(sizeof(void *)); 308 309typedef struct libusb_interface { 310 struct libusb_interface_descriptor *altsetting; 311 int num_altsetting; 312} libusb_interface __aligned(sizeof(void *)); 313 314typedef struct libusb_config_descriptor { 315 uint8_t bLength; 316 uint8_t bDescriptorType; 317 uint16_t wTotalLength; 318 uint8_t bNumInterfaces; 319 uint8_t bConfigurationValue; 320 uint8_t iConfiguration; 321 uint8_t bmAttributes; 322 uint8_t MaxPower; 323 struct libusb_interface *interface; 324 uint8_t *extra; 325 int extra_length; 326} libusb_config_descriptor __aligned(sizeof(void *)); 327 328typedef struct libusb_usb_2_0_device_capability_descriptor { 329 uint8_t bLength; 330 uint8_t bDescriptorType; 331 uint8_t bDevCapabilityType; 332 uint32_t bmAttributes; 333#define LIBUSB_USB_2_0_CAPABILITY_LPM_SUPPORT (1 << 1) 334} libusb_usb_2_0_device_capability_descriptor __aligned(sizeof(void *)); 335 336typedef struct libusb_ss_usb_device_capability_descriptor { 337 uint8_t bLength; 338 uint8_t bDescriptorType; 339 uint8_t bDevCapabilityType; 340 uint8_t bmAttributes; 341#define LIBUSB_SS_USB_CAPABILITY_LPM_SUPPORT (1 << 1) 342 uint16_t wSpeedSupported; 343#define LIBUSB_CAPABILITY_LOW_SPEED_OPERATION (1) 344#define LIBUSB_CAPABILITY_FULL_SPEED_OPERATION (1 << 1) 345#define LIBUSB_CAPABILITY_HIGH_SPEED_OPERATION (1 << 2) 346#define LIBUSB_CAPABILITY_5GBPS_OPERATION (1 << 3) 347 uint8_t bFunctionalitySupport; 348 uint8_t bU1DevExitLat; 349 uint16_t wU2DevExitLat; 350} libusb_ss_usb_device_capability_descriptor __aligned(sizeof(void *)); 351 352typedef struct libusb_bos_descriptor { 353 uint8_t bLength; 354 uint8_t bDescriptorType; 355 uint16_t wTotalLength; 356 uint8_t bNumDeviceCapabilities; 357 struct libusb_usb_2_0_device_capability_descriptor *usb_2_0_ext_cap; 358 struct libusb_ss_usb_device_capability_descriptor *ss_usb_cap; 359} libusb_bos_descriptor __aligned(sizeof(void *)); 360 361typedef struct libusb_control_setup { 362 uint8_t bmRequestType; 363 uint8_t bRequest; 364 uint16_t wValue; 365 uint16_t wIndex; 366 uint16_t wLength; 367} libusb_control_setup; 368 369#define LIBUSB_CONTROL_SETUP_SIZE 8 /* bytes */ 370 371typedef struct libusb_iso_packet_descriptor { 372 uint32_t length; 373 uint32_t actual_length; 374 enum libusb_transfer_status status; 375} libusb_iso_packet_descriptor __aligned(sizeof(void *)); 376 377typedef void (*libusb_transfer_cb_fn) (struct libusb_transfer *transfer); 378 379typedef struct libusb_transfer { 380 libusb_device_handle *dev_handle; 381 uint8_t flags; 382 uint8_t endpoint; 383 uint8_t type; 384 uint32_t timeout; 385 enum libusb_transfer_status status; 386 int length; 387 int actual_length; 388 libusb_transfer_cb_fn callback; 389 void *user_data; 390 uint8_t *buffer; 391 int num_iso_packets; 392 struct libusb_iso_packet_descriptor iso_packet_desc[0]; 393} libusb_transfer __aligned(sizeof(void *)); 394 395/* Library initialisation */ 396 397void libusb_set_debug(libusb_context * ctx, int level); 398const struct libusb_version *libusb_get_version(void); 399const char *libusb_strerror(int code); 400const char *libusb_error_name(int code); 401int libusb_init(libusb_context ** context); 402void libusb_exit(struct libusb_context *ctx); 403 404/* Device handling and enumeration */ 405 406ssize_t libusb_get_device_list(libusb_context * ctx, libusb_device *** list); 407void libusb_free_device_list(libusb_device ** list, int unref_devices); 408uint8_t libusb_get_bus_number(libusb_device * dev); 409uint8_t libusb_get_port_number(libusb_device * dev); 410int libusb_get_port_numbers(libusb_device *dev, uint8_t *buf, uint8_t bufsize); 411int libusb_get_port_path(libusb_context *ctx, libusb_device *dev, uint8_t *buf, uint8_t bufsize); 412uint8_t libusb_get_device_address(libusb_device * dev); 413enum libusb_speed libusb_get_device_speed(libusb_device * dev); 414int libusb_clear_halt(libusb_device_handle *devh, uint8_t endpoint); 415int libusb_get_max_packet_size(libusb_device * dev, uint8_t endpoint); 416int libusb_get_max_iso_packet_size(libusb_device * dev, uint8_t endpoint); 417libusb_device *libusb_ref_device(libusb_device * dev); 418void libusb_unref_device(libusb_device * dev); 419int libusb_open(libusb_device * dev, libusb_device_handle ** devh); 420libusb_device_handle *libusb_open_device_with_vid_pid(libusb_context * ctx, uint16_t vendor_id, uint16_t product_id); 421void libusb_close(libusb_device_handle * devh); 422libusb_device *libusb_get_device(libusb_device_handle * devh); 423int libusb_get_configuration(libusb_device_handle * devh, int *config); 424int libusb_set_configuration(libusb_device_handle * devh, int configuration); 425int libusb_claim_interface(libusb_device_handle * devh, int interface_number); 426int libusb_release_interface(libusb_device_handle * devh, int interface_number); 427int libusb_reset_device(libusb_device_handle * devh); 428int libusb_check_connected(libusb_device_handle * devh); 429int libusb_kernel_driver_active(libusb_device_handle * devh, int interface); 430int libusb_get_driver_np(libusb_device_handle * devh, int interface, char *name, int namelen); 431int libusb_get_driver(libusb_device_handle * devh, int interface, char *name, int namelen); 432int libusb_detach_kernel_driver_np(libusb_device_handle * devh, int interface); 433int libusb_detach_kernel_driver(libusb_device_handle * devh, int interface); 434int libusb_attach_kernel_driver(libusb_device_handle * devh, int interface); 435int libusb_set_interface_alt_setting(libusb_device_handle * devh, int interface_number, int alternate_setting); 436 437/* USB Descriptors */ 438 439int libusb_get_device_descriptor(libusb_device * dev, struct libusb_device_descriptor *desc); 440int libusb_get_active_config_descriptor(libusb_device * dev, struct libusb_config_descriptor **config); 441int libusb_get_config_descriptor(libusb_device * dev, uint8_t config_index, struct libusb_config_descriptor **config); 442int libusb_get_config_descriptor_by_value(libusb_device * dev, uint8_t bConfigurationValue, struct libusb_config_descriptor **config); 443void libusb_free_config_descriptor(struct libusb_config_descriptor *config); 444int libusb_get_string_descriptor(libusb_device_handle * devh, uint8_t desc_index, uint16_t langid, unsigned char *data, int length); 445int libusb_get_string_descriptor_ascii(libusb_device_handle * devh, uint8_t desc_index, uint8_t *data, int length); 446int libusb_get_descriptor(libusb_device_handle * devh, uint8_t desc_type, uint8_t desc_index, uint8_t *data, int length); 447int libusb_parse_ss_endpoint_comp(const void *buf, int len, struct libusb_ss_endpoint_companion_descriptor **ep_comp); 448void libusb_free_ss_endpoint_comp(struct libusb_ss_endpoint_companion_descriptor *ep_comp); 449int libusb_parse_bos_descriptor(const void *buf, int len, struct libusb_bos_descriptor **bos); 450void libusb_free_bos_descriptor(struct libusb_bos_descriptor *bos); 451 452/* Asynchronous device I/O */ 453 454struct libusb_transfer *libusb_alloc_transfer(int iso_packets); 455void libusb_free_transfer(struct libusb_transfer *transfer); 456int libusb_submit_transfer(struct libusb_transfer *transfer); 457int libusb_cancel_transfer(struct libusb_transfer *transfer); 458uint8_t *libusb_get_iso_packet_buffer(struct libusb_transfer *transfer, uint32_t index); 459uint8_t *libusb_get_iso_packet_buffer_simple(struct libusb_transfer *transfer, uint32_t index); 460void libusb_set_iso_packet_lengths(struct libusb_transfer *transfer, uint32_t length); 461uint8_t *libusb_control_transfer_get_data(struct libusb_transfer *transfer); 462struct libusb_control_setup *libusb_control_transfer_get_setup(struct libusb_transfer *transfer); 463void libusb_fill_control_setup(uint8_t *buf, uint8_t bmRequestType, uint8_t bRequest, uint16_t wValue, uint16_t wIndex, uint16_t wLength); 464void 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); 465void 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); 466void 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); 467void 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); 468 469/* Polling and timing */ 470 471int libusb_try_lock_events(libusb_context * ctx); 472void libusb_lock_events(libusb_context * ctx); 473void libusb_unlock_events(libusb_context * ctx); 474int libusb_event_handling_ok(libusb_context * ctx); 475int libusb_event_handler_active(libusb_context * ctx); 476void libusb_lock_event_waiters(libusb_context * ctx); 477void libusb_unlock_event_waiters(libusb_context * ctx); 478int libusb_wait_for_event(libusb_context * ctx, struct timeval *tv); 479int libusb_handle_events_timeout_completed(libusb_context * ctx, struct timeval *tv, int *completed); 480int libusb_handle_events_completed(libusb_context * ctx, int *completed); 481int libusb_handle_events_timeout(libusb_context * ctx, struct timeval *tv); 482int libusb_handle_events(libusb_context * ctx); 483int libusb_handle_events_locked(libusb_context * ctx, struct timeval *tv); 484int libusb_get_next_timeout(libusb_context * ctx, struct timeval *tv); 485void libusb_set_pollfd_notifiers(libusb_context * ctx, libusb_pollfd_added_cb added_cb, libusb_pollfd_removed_cb removed_cb, void *user_data); 486const struct libusb_pollfd **libusb_get_pollfds(libusb_context * ctx); 487 488/* Synchronous device I/O */ 489 490int 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); 491int libusb_bulk_transfer(libusb_device_handle * devh, uint8_t endpoint, uint8_t *data, int length, int *transferred, uint32_t timeout); 492int libusb_interrupt_transfer(libusb_device_handle * devh, uint8_t endpoint, uint8_t *data, int length, int *transferred, uint32_t timeout); 493 494/* Byte-order */ 495 496uint16_t libusb_cpu_to_le16(uint16_t x); 497uint16_t libusb_le16_to_cpu(uint16_t x); 498 499#if 0 500{ /* indent fix */ 501#endif 502#ifdef __cplusplus 503} 504 505#endif 506 507#endif /* __LIBUSB_H__ */ 508