lib/libusb/libusb.h

   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__ */