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 #define LIBUSB_HOTPLUG_MATCH_ANY -1
 228
 229 typedef enum {
 230         LIBUSB_HOTPLUG_NO_FLAGS = 0,
 231         LIBUSB_HOTPLUG_ENUMERATE = 1 << 0,
 232 } libusb_hotplug_flag;
 233
 234 typedef enum {
 235         LIBUSB_HOTPLUG_EVENT_DEVICE_ARRIVED = 1,
 236         LIBUSB_HOTPLUG_EVENT_DEVICE_LEFT = 2,
 237 } libusb_hotplug_event;
 238
 239 /* libusb structures */
 240
 241 struct libusb_context;
 242 struct libusb_device;
 243 struct libusb_transfer;
 244 struct libusb_device_handle;
 245 struct libusb_hotplug_callback_handle_struct;
 246
 247 struct libusb_pollfd {
 248         int     fd;
 249         short   events;
 250 };
 251
 252 typedef struct libusb_context libusb_context;
 253 typedef struct libusb_device libusb_device;
 254 typedef struct libusb_device_handle libusb_device_handle;
 255 typedef struct libusb_pollfd libusb_pollfd;
 256 typedef void (*libusb_pollfd_added_cb) (int fd, short events, void *user_data);
 257 typedef void (*libusb_pollfd_removed_cb) (int fd, void *user_data);
 258 typedef struct libusb_hotplug_callback_handle_struct *libusb_hotplug_callback_handle;
 259
 260 typedef struct libusb_device_descriptor {
 261         uint8_t bLength;
 262         uint8_t bDescriptorType;
 263         uint16_t bcdUSB;
 264         uint8_t bDeviceClass;
 265         uint8_t bDeviceSubClass;
 266         uint8_t bDeviceProtocol;
 267         uint8_t bMaxPacketSize0;
 268         uint16_t idVendor;
 269         uint16_t idProduct;
 270         uint16_t bcdDevice;
 271         uint8_t iManufacturer;
 272         uint8_t iProduct;
 273         uint8_t iSerialNumber;
 274         uint8_t bNumConfigurations;
 275 }       libusb_device_descriptor;
 276
 277 typedef struct libusb_endpoint_descriptor {
 278         uint8_t bLength;
 279         uint8_t bDescriptorType;
 280         uint8_t bEndpointAddress;
 281         uint8_t bmAttributes;
 282         uint16_t wMaxPacketSize;
 283         uint8_t bInterval;
 284         uint8_t bRefresh;
 285         uint8_t bSynchAddress;
 286         uint8_t *extra;
 287         int     extra_length;
 288 }       libusb_endpoint_descriptor __aligned(sizeof(void *));
 289
 290 typedef struct libusb_ss_endpoint_companion_descriptor {
 291         uint8_t bLength;
 292         uint8_t bDescriptorType;
 293         uint8_t bMaxBurst;
 294         uint8_t bmAttributes;
 295         uint16_t wBytesPerInterval;
 296 }       libusb_ss_endpoint_companion_descriptor __aligned(sizeof(void *));
 297
 298 typedef struct libusb_interface_descriptor {
 299         uint8_t bLength;
 300         uint8_t bDescriptorType;
 301         uint8_t bInterfaceNumber;
 302         uint8_t bAlternateSetting;
 303         uint8_t bNumEndpoints;
 304         uint8_t bInterfaceClass;
 305         uint8_t bInterfaceSubClass;
 306         uint8_t bInterfaceProtocol;
 307         uint8_t iInterface;
 308         struct libusb_endpoint_descriptor *endpoint;
 309         uint8_t *extra;
 310         int     extra_length;
 311 }       libusb_interface_descriptor __aligned(sizeof(void *));
 312
 313 typedef struct libusb_interface {
 314         struct libusb_interface_descriptor *altsetting;
 315         int     num_altsetting;
 316 }       libusb_interface __aligned(sizeof(void *));
 317
 318 typedef struct libusb_config_descriptor {
 319         uint8_t bLength;
 320         uint8_t bDescriptorType;
 321         uint16_t wTotalLength;
 322         uint8_t bNumInterfaces;
 323         uint8_t bConfigurationValue;
 324         uint8_t iConfiguration;
 325         uint8_t bmAttributes;
 326         uint8_t MaxPower;
 327         struct libusb_interface *interface;
 328         uint8_t *extra;
 329         int     extra_length;
 330 }       libusb_config_descriptor __aligned(sizeof(void *));
 331
 332 typedef struct libusb_usb_2_0_device_capability_descriptor {
 333         uint8_t bLength;
 334         uint8_t bDescriptorType;
 335         uint8_t bDevCapabilityType;
 336         uint32_t bmAttributes;
 337 #define LIBUSB_USB_2_0_CAPABILITY_LPM_SUPPORT  (1 << 1)
 338 }       libusb_usb_2_0_device_capability_descriptor __aligned(sizeof(void *));
 339
 340 typedef struct libusb_ss_usb_device_capability_descriptor {
 341         uint8_t bLength;
 342         uint8_t bDescriptorType;
 343         uint8_t bDevCapabilityType;
 344         uint8_t bmAttributes;
 345 #define LIBUSB_SS_USB_CAPABILITY_LPM_SUPPORT   (1 << 1)
 346         uint16_t wSpeedSupported;
 347 #define LIBUSB_CAPABILITY_LOW_SPEED_OPERATION  (1)
 348 #define LIBUSB_CAPABILITY_FULL_SPEED_OPERATION (1 << 1)
 349 #define LIBUSB_CAPABILITY_HIGH_SPEED_OPERATION (1 << 2)
 350 #define LIBUSB_CAPABILITY_5GBPS_OPERATION      (1 << 3)
 351         uint8_t bFunctionalitySupport;
 352         uint8_t bU1DevExitLat;
 353         uint16_t wU2DevExitLat;
 354 }       libusb_ss_usb_device_capability_descriptor __aligned(sizeof(void *));
 355
 356 typedef struct libusb_bos_descriptor {
 357         uint8_t bLength;
 358         uint8_t bDescriptorType;
 359         uint16_t wTotalLength;
 360         uint8_t bNumDeviceCapabilities;
 361         struct libusb_usb_2_0_device_capability_descriptor *usb_2_0_ext_cap;
 362         struct libusb_ss_usb_device_capability_descriptor *ss_usb_cap;
 363 }       libusb_bos_descriptor __aligned(sizeof(void *));
 364
 365 typedef struct libusb_control_setup {
 366         uint8_t bmRequestType;
 367         uint8_t bRequest;
 368         uint16_t wValue;
 369         uint16_t wIndex;
 370         uint16_t wLength;
 371 }       libusb_control_setup;
 372
 373 #define LIBUSB_CONTROL_SETUP_SIZE       8       /* bytes */
 374
 375 typedef struct libusb_iso_packet_descriptor {
 376         uint32_t length;
 377         uint32_t actual_length;
 378         enum libusb_transfer_status status;
 379 }       libusb_iso_packet_descriptor __aligned(sizeof(void *));
 380
 381 typedef void (*libusb_transfer_cb_fn) (struct libusb_transfer *transfer);
 382
 383 typedef struct libusb_transfer {
 384         libusb_device_handle *dev_handle;
 385         uint8_t flags;
 386         uint8_t endpoint;
 387         uint8_t type;
 388         uint32_t timeout;
 389         enum libusb_transfer_status status;
 390         int     length;
 391         int     actual_length;
 392         libusb_transfer_cb_fn callback;
 393         void   *user_data;
 394         uint8_t *buffer;
 395         int     num_iso_packets;
 396         struct libusb_iso_packet_descriptor iso_packet_desc[0];
 397 }       libusb_transfer __aligned(sizeof(void *));
 398
 399 /* Library initialisation */
 400
 401 void    libusb_set_debug(libusb_context * ctx, int level);
 402 const char *libusb_strerror(int code);
 403 const char *libusb_error_name(int code);
 404 int     libusb_init(libusb_context ** context);
 405 void    libusb_exit(struct libusb_context *ctx);
 406
 407 /* Device handling and enumeration */
 408
 409 ssize_t libusb_get_device_list(libusb_context * ctx, libusb_device *** list);
 410 void    libusb_free_device_list(libusb_device ** list, int unref_devices);
 411 uint8_t libusb_get_bus_number(libusb_device * dev);
 412 int     libusb_get_port_numbers(libusb_device *dev, uint8_t *buf, uint8_t bufsize);
 413 int     libusb_get_port_path(libusb_context *ctx, libusb_device *dev, uint8_t *buf, uint8_t bufsize);
 414 uint8_t libusb_get_device_address(libusb_device * dev);
 415 enum libusb_speed libusb_get_device_speed(libusb_device * dev);
 416 int     libusb_clear_halt(libusb_device_handle *devh, uint8_t endpoint);
 417 int     libusb_get_max_packet_size(libusb_device * dev, uint8_t endpoint);
 418 int     libusb_get_max_iso_packet_size(libusb_device * dev, uint8_t endpoint);
 419 libusb_device *libusb_ref_device(libusb_device * dev);
 420 void    libusb_unref_device(libusb_device * dev);
 421 int     libusb_open(libusb_device * dev, libusb_device_handle ** devh);
 422 libusb_device_handle *libusb_open_device_with_vid_pid(libusb_context * ctx, uint16_t vendor_id, uint16_t product_id);
 423 void    libusb_close(libusb_device_handle * devh);
 424 libusb_device *libusb_get_device(libusb_device_handle * devh);
 425 int     libusb_get_configuration(libusb_device_handle * devh, int *config);
 426 int     libusb_set_configuration(libusb_device_handle * devh, int configuration);
 427 int     libusb_claim_interface(libusb_device_handle * devh, int interface_number);
 428 int     libusb_release_interface(libusb_device_handle * devh, int interface_number);
 429 int     libusb_reset_device(libusb_device_handle * devh);
 430 int     libusb_check_connected(libusb_device_handle * devh);
 431 int     libusb_kernel_driver_active(libusb_device_handle * devh, int interface);
 432 int     libusb_get_driver_np(libusb_device_handle * devh, int interface, char *name, int namelen);
 433 int     libusb_get_driver(libusb_device_handle * devh, int interface, char *name, int namelen);
 434 int     libusb_detach_kernel_driver_np(libusb_device_handle * devh, int interface);
 435 int     libusb_detach_kernel_driver(libusb_device_handle * devh, int interface);
 436 int     libusb_attach_kernel_driver(libusb_device_handle * devh, int interface);
 437 int     libusb_set_interface_alt_setting(libusb_device_handle * devh, int interface_number, int alternate_setting);
 438
 439 /* USB Descriptors */
 440
 441 int     libusb_get_device_descriptor(libusb_device * dev, struct libusb_device_descriptor *desc);
 442 int     libusb_get_active_config_descriptor(libusb_device * dev, struct libusb_config_descriptor **config);
 443 int     libusb_get_config_descriptor(libusb_device * dev, uint8_t config_index, struct libusb_config_descriptor **config);
 444 int     libusb_get_config_descriptor_by_value(libusb_device * dev, uint8_t bConfigurationValue, struct libusb_config_descriptor **config);
 445 void    libusb_free_config_descriptor(struct libusb_config_descriptor *config);
 446 int     libusb_get_string_descriptor(libusb_device_handle * devh, uint8_t desc_index, uint16_t langid, unsigned char *data, int length);
 447 int     libusb_get_string_descriptor_ascii(libusb_device_handle * devh, uint8_t desc_index, uint8_t *data, int length);
 448 int     libusb_get_descriptor(libusb_device_handle * devh, uint8_t desc_type, uint8_t desc_index, uint8_t *data, int length);
 449 int     libusb_parse_ss_endpoint_comp(const void *buf, int len, struct libusb_ss_endpoint_companion_descriptor **ep_comp);
 450 void    libusb_free_ss_endpoint_comp(struct libusb_ss_endpoint_companion_descriptor *ep_comp);
 451 int     libusb_parse_bos_descriptor(const void *buf, int len, struct libusb_bos_descriptor **bos);
 452 void    libusb_free_bos_descriptor(struct libusb_bos_descriptor *bos);
 453
 454 /* Asynchronous device I/O */
 455
 456 struct libusb_transfer *libusb_alloc_transfer(int iso_packets);
 457 void    libusb_free_transfer(struct libusb_transfer *transfer);
 458 int     libusb_submit_transfer(struct libusb_transfer *transfer);
 459 int     libusb_cancel_transfer(struct libusb_transfer *transfer);
 460 uint8_t *libusb_get_iso_packet_buffer(struct libusb_transfer *transfer, uint32_t index);
 461 uint8_t *libusb_get_iso_packet_buffer_simple(struct libusb_transfer *transfer, uint32_t index);
 462 void    libusb_set_iso_packet_lengths(struct libusb_transfer *transfer, uint32_t length);
 463 uint8_t *libusb_control_transfer_get_data(struct libusb_transfer *transfer);
 464 struct libusb_control_setup *libusb_control_transfer_get_setup(struct libusb_transfer *transfer);
 465 void    libusb_fill_control_setup(uint8_t *buf, uint8_t bmRequestType, uint8_t bRequest, uint16_t wValue, uint16_t wIndex, uint16_t wLength);
 466 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);
 467 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);
 468 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);
 469 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);
 470
 471 /* Polling and timing */
 472
 473 int     libusb_try_lock_events(libusb_context * ctx);
 474 void    libusb_lock_events(libusb_context * ctx);
 475 void    libusb_unlock_events(libusb_context * ctx);
 476 int     libusb_event_handling_ok(libusb_context * ctx);
 477 int     libusb_event_handler_active(libusb_context * ctx);
 478 void    libusb_lock_event_waiters(libusb_context * ctx);
 479 void    libusb_unlock_event_waiters(libusb_context * ctx);
 480 int     libusb_wait_for_event(libusb_context * ctx, struct timeval *tv);
 481 int     libusb_handle_events_timeout_completed(libusb_context * ctx, struct timeval *tv, int *completed);
 482 int     libusb_handle_events_completed(libusb_context * ctx, int *completed);
 483 int     libusb_handle_events_timeout(libusb_context * ctx, struct timeval *tv);
 484 int     libusb_handle_events(libusb_context * ctx);
 485 int     libusb_handle_events_locked(libusb_context * ctx, struct timeval *tv);
 486 int     libusb_get_next_timeout(libusb_context * ctx, struct timeval *tv);
 487 void    libusb_set_pollfd_notifiers(libusb_context * ctx, libusb_pollfd_added_cb added_cb, libusb_pollfd_removed_cb removed_cb, void *user_data);
 488 const struct libusb_pollfd **libusb_get_pollfds(libusb_context * ctx);
 489
 490 /* Synchronous device I/O */
 491
 492 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);
 493 int     libusb_bulk_transfer(libusb_device_handle * devh, uint8_t endpoint, uint8_t *data, int length, int *transferred, uint32_t timeout);
 494 int     libusb_interrupt_transfer(libusb_device_handle * devh, uint8_t endpoint, uint8_t *data, int length, int *transferred, uint32_t timeout);
 495
 496 /* Byte-order */
 497
 498 uint16_t libusb_cpu_to_le16(uint16_t x);
 499 uint16_t libusb_le16_to_cpu(uint16_t x);
 500
 501 /* Hotplug support */
 502
 503 typedef int (*libusb_hotplug_callback_fn)(libusb_context *ctx,
 504     libusb_device *device, libusb_hotplug_event event, void *user_data);
 505
 506 int     libusb_hotplug_register_callback(libusb_context *ctx, libusb_hotplug_event events, libusb_hotplug_flag flags, int vendor_id, int product_id, int dev_class, libusb_hotplug_callback_fn cb_fn, void *user_data, libusb_hotplug_callback_handle *handle);
 507 void    libusb_hotplug_deregister_callback(libusb_context *ctx, libusb_hotplug_callback_handle handle);
 508
 509 #if 0
 510 {                                       /* indent fix */
 511 #endif
 512 #ifdef __cplusplus
 513 }
 514
 515 #endif
 516
 517 #endif                                  /* __LIBUSB_H__ */