libusb/os/windows_usb.h

   1 /*
   2  * Windows backend for libusbx 1.0
   3  * Copyright © 2009-2012 Pete Batard <pete@akeo.ie>
   4  * With contributions from Michael Plante, Orin Eman et al.
   5  * Parts of this code adapted from libusb-win32-v1 by Stephan Meyer
   6  * Major code testing contribution by Xiaofan Chen
   7  *
   8  * This library is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU Lesser General Public
  10  * License as published by the Free Software Foundation; either
  11  * version 2.1 of the License, or (at your option) any later version.
  12  *
  13  * This library is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  * Lesser General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU Lesser General Public
  19  * License along with this library; if not, write to the Free Software
  20  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  21  */
  22
  23 #pragma once
  24
  25 #if defined(_MSC_VER)
  26 // disable /W4 MSVC warnings that are benign
  27 #pragma warning(disable:4127) // conditional expression is constant
  28 #pragma warning(disable:4100) // unreferenced formal parameter
  29 #pragma warning(disable:4214) // bit field types other than int
  30 #pragma warning(disable:4201) // nameless struct/union
  31 #endif
  32
  33 // Windows API default is uppercase - ugh!
  34 #if !defined(bool)
  35 #define bool BOOL
  36 #endif
  37 #if !defined(true)
  38 #define true TRUE
  39 #endif
  40 #if !defined(false)
  41 #define false FALSE
  42 #endif
  43
  44 // Missing from MSVC6 setupapi.h
  45 #if !defined(SPDRP_ADDRESS)
  46 #define SPDRP_ADDRESS   28
  47 #endif
  48 #if !defined(SPDRP_INSTALL_STATE)
  49 #define SPDRP_INSTALL_STATE     34
  50 #endif
  51
  52 #if defined(__CYGWIN__ )
  53 #define _stricmp stricmp
  54 // cygwin produces a warning unless these prototypes are defined
  55 extern int _snprintf(char *buffer, size_t count, const char *format, ...);
  56 extern char *_strdup(const char *strSource);
  57 // _beginthreadex is MSVCRT => unavailable for cygwin. Fallback to using CreateThread
  58 #define _beginthreadex(a, b, c, d, e, f) CreateThread(a, b, (LPTHREAD_START_ROUTINE)c, d, e, f)
  59 #endif
  60 #define safe_free(p) do {if (p != NULL) {free((void*)p); p = NULL;}} while(0)
  61 #define safe_closehandle(h) do {if (h != INVALID_HANDLE_VALUE) {CloseHandle(h); h = INVALID_HANDLE_VALUE;}} while(0)
  62 #define safe_min(a, b) min((size_t)(a), (size_t)(b))
  63 #define safe_strcp(dst, dst_max, src, count) do {memcpy(dst, src, safe_min(count, dst_max)); \
  64         ((char*)dst)[safe_min(count, dst_max)-1] = 0;} while(0)
  65 #define safe_strcpy(dst, dst_max, src) safe_strcp(dst, dst_max, src, safe_strlen(src)+1)
  66 #define safe_strncat(dst, dst_max, src, count) strncat(dst, src, safe_min(count, dst_max - safe_strlen(dst) - 1))
  67 #define safe_strcat(dst, dst_max, src) safe_strncat(dst, dst_max, src, safe_strlen(src)+1)
  68 #define safe_strcmp(str1, str2) strcmp(((str1==NULL)?"<NULL>":str1), ((str2==NULL)?"<NULL>":str2))
  69 #define safe_stricmp(str1, str2) _stricmp(((str1==NULL)?"<NULL>":str1), ((str2==NULL)?"<NULL>":str2))
  70 #define safe_strncmp(str1, str2, count) strncmp(((str1==NULL)?"<NULL>":str1), ((str2==NULL)?"<NULL>":str2), count)
  71 #define safe_strlen(str) ((str==NULL)?0:strlen(str))
  72 #define safe_sprintf _snprintf
  73 #define safe_unref_device(dev) do {if (dev != NULL) {libusb_unref_device(dev); dev = NULL;}} while(0)
  74 #define wchar_to_utf8_ms(wstr, str, strlen) WideCharToMultiByte(CP_UTF8, 0, wstr, -1, str, strlen, NULL, NULL)
  75 #ifndef ARRAYSIZE
  76 #define ARRAYSIZE(A) (sizeof(A)/sizeof((A)[0]))
  77 #endif
  78
  79 #define MAX_CTRL_BUFFER_LENGTH      4096
  80 #define MAX_USB_DEVICES             256
  81 #define MAX_USB_STRING_LENGTH       128
  82 #define MAX_HID_REPORT_SIZE         1024
  83 #define MAX_HID_DESCRIPTOR_SIZE     256
  84 #define MAX_GUID_STRING_LENGTH      40
  85 #define MAX_PATH_LENGTH             128
  86 #define MAX_KEY_LENGTH              256
  87 #define MAX_TIMER_SEMAPHORES        128
  88 #define TIMER_REQUEST_RETRY_MS      100
  89 #define ERR_BUFFER_SIZE             256
  90 #define LIST_SEPARATOR              ';'
  91 #define HTAB_SIZE                   1021
  92
  93 // Handle code for HID interface that have been claimed ("dibs")
  94 #define INTERFACE_CLAIMED           ((HANDLE)(intptr_t)0xD1B5)
  95 // Additional return code for HID operations that completed synchronously
  96 #define LIBUSB_COMPLETED            (LIBUSB_SUCCESS + 1)
  97
  98 // http://msdn.microsoft.com/en-us/library/ff545978.aspx
  99 // http://msdn.microsoft.com/en-us/library/ff545972.aspx
 100 // http://msdn.microsoft.com/en-us/library/ff545982.aspx
 101 #if !defined(GUID_DEVINTERFACE_USB_HOST_CONTROLLER)
 102 const GUID GUID_DEVINTERFACE_USB_HOST_CONTROLLER = { 0x3ABF6F2D, 0x71C4, 0x462A, {0x8A, 0x92, 0x1E, 0x68, 0x61, 0xE6, 0xAF, 0x27} };
 103 #endif
 104 #if !defined(GUID_DEVINTERFACE_USB_DEVICE)
 105 const GUID GUID_DEVINTERFACE_USB_DEVICE = { 0xA5DCBF10, 0x6530, 0x11D2, {0x90, 0x1F, 0x00, 0xC0, 0x4F, 0xB9, 0x51, 0xED} };
 106 #endif
 107 #if !defined(GUID_DEVINTERFACE_USB_HUB)
 108 const GUID GUID_DEVINTERFACE_USB_HUB = { 0xF18A0E88, 0xC30C, 0x11D0, {0x88, 0x15, 0x00, 0xA0, 0xC9, 0x06, 0xBE, 0xD8} };
 109 #endif
 110 #if !defined(GUID_DEVINTERFACE_LIBUSB0_FILTER)
 111 const GUID GUID_DEVINTERFACE_LIBUSB0_FILTER = { 0xF9F3FF14, 0xAE21, 0x48A0, {0x8A, 0x25, 0x80, 0x11, 0xA7, 0xA9, 0x31, 0xD9} };
 112 #endif
 113
 114
 115 /*
 116  * Multiple USB API backend support
 117  */
 118 #define USB_API_UNSUPPORTED 0
 119 #define USB_API_HUB         1
 120 #define USB_API_COMPOSITE   2
 121 #define USB_API_WINUSBX     3
 122 #define USB_API_HID         4
 123 #define USB_API_MAX         5
 124 // The following is used to indicate if the HID or composite extra props have already been set.
 125 #define USB_API_SET         (1<<USB_API_MAX)
 126
 127 // Sub-APIs for WinUSB-like driver APIs (WinUSB, libusbK, libusb-win32 through the libusbK DLL)
 128 // Must have the same values as the KUSB_DRVID enum from libusbk.h
 129 #define SUB_API_NOTSET      -1
 130 #define SUB_API_LIBUSBK     0
 131 #define SUB_API_LIBUSB0     1
 132 #define SUB_API_WINUSB      2
 133 #define SUB_API_MAX         3
 134
 135 #define WINUSBX_DRV_NAMES   { "libusbK", "libusb0", "WinUSB"}
 136
 137 struct windows_usb_api_backend {
 138         const uint8_t id;
 139         const char* designation;
 140         const char **driver_name_list; // Driver name, without .sys, e.g. "usbccgp"
 141         const uint8_t nb_driver_names;
 142         int (*init)(int sub_api, struct libusb_context *ctx);
 143         int (*exit)(int sub_api);
 144         int (*open)(int sub_api, struct libusb_device_handle *dev_handle);
 145         void (*close)(int sub_api, struct libusb_device_handle *dev_handle);
 146         int (*configure_endpoints)(int sub_api, struct libusb_device_handle *dev_handle, int iface);
 147         int (*claim_interface)(int sub_api, struct libusb_device_handle *dev_handle, int iface);
 148         int (*set_interface_altsetting)(int sub_api, struct libusb_device_handle *dev_handle, int iface, int altsetting);
 149         int (*release_interface)(int sub_api, struct libusb_device_handle *dev_handle, int iface);
 150         int (*clear_halt)(int sub_api, struct libusb_device_handle *dev_handle, unsigned char endpoint);
 151         int (*reset_device)(int sub_api, struct libusb_device_handle *dev_handle);
 152         int (*submit_bulk_transfer)(int sub_api, struct usbi_transfer *itransfer);
 153         int (*submit_iso_transfer)(int sub_api, struct usbi_transfer *itransfer);
 154         int (*submit_control_transfer)(int sub_api, struct usbi_transfer *itransfer);
 155         int (*abort_control)(int sub_api, struct usbi_transfer *itransfer);
 156         int (*abort_transfers)(int sub_api, struct usbi_transfer *itransfer);
 157         int (*copy_transfer_data)(int sub_api, struct usbi_transfer *itransfer, uint32_t io_size);
 158 };
 159
 160 extern const struct windows_usb_api_backend usb_api_backend[USB_API_MAX];
 161
 162 #define PRINT_UNSUPPORTED_API(fname)              \
 163         usbi_dbg("unsupported API call for '"         \
 164                 #fname "' (unrecognized device driver)"); \
 165         return LIBUSB_ERROR_NOT_SUPPORTED;
 166
 167 /*
 168  * private structures definition
 169  * with inline pseudo constructors/destructors
 170  */
 171
 172 // TODO (v2+): move hid desc to libusb.h?
 173 struct libusb_hid_descriptor {
 174         uint8_t  bLength;
 175         uint8_t  bDescriptorType;
 176         uint16_t bcdHID;
 177         uint8_t  bCountryCode;
 178         uint8_t  bNumDescriptors;
 179         uint8_t  bClassDescriptorType;
 180         uint16_t wClassDescriptorLength;
 181 };
 182 #define LIBUSB_DT_HID_SIZE              9
 183 #define HID_MAX_CONFIG_DESC_SIZE (LIBUSB_DT_CONFIG_SIZE + LIBUSB_DT_INTERFACE_SIZE \
 184         + LIBUSB_DT_HID_SIZE + 2 * LIBUSB_DT_ENDPOINT_SIZE)
 185 #define HID_MAX_REPORT_SIZE             1024
 186 #define HID_IN_EP                       0x81
 187 #define HID_OUT_EP                      0x02
 188 #define LIBUSB_REQ_RECIPIENT(request_type) ((request_type) & 0x1F)
 189 #define LIBUSB_REQ_TYPE(request_type) ((request_type) & (0x03 << 5))
 190 #define LIBUSB_REQ_IN(request_type) ((request_type) & LIBUSB_ENDPOINT_IN)
 191 #define LIBUSB_REQ_OUT(request_type) (!LIBUSB_REQ_IN(request_type))
 192
 193 // The following are used for HID reports IOCTLs
 194 #define HID_CTL_CODE(id) \
 195   CTL_CODE (FILE_DEVICE_KEYBOARD, (id), METHOD_NEITHER, FILE_ANY_ACCESS)
 196 #define HID_BUFFER_CTL_CODE(id) \
 197   CTL_CODE (FILE_DEVICE_KEYBOARD, (id), METHOD_BUFFERED, FILE_ANY_ACCESS)
 198 #define HID_IN_CTL_CODE(id) \
 199   CTL_CODE (FILE_DEVICE_KEYBOARD, (id), METHOD_IN_DIRECT, FILE_ANY_ACCESS)
 200 #define HID_OUT_CTL_CODE(id) \
 201   CTL_CODE (FILE_DEVICE_KEYBOARD, (id), METHOD_OUT_DIRECT, FILE_ANY_ACCESS)
 202
 203 #define IOCTL_HID_GET_FEATURE                 HID_OUT_CTL_CODE(100)
 204 #define IOCTL_HID_GET_INPUT_REPORT            HID_OUT_CTL_CODE(104)
 205 #define IOCTL_HID_SET_FEATURE                 HID_IN_CTL_CODE(100)
 206 #define IOCTL_HID_SET_OUTPUT_REPORT           HID_IN_CTL_CODE(101)
 207
 208 enum libusb_hid_request_type {
 209         HID_REQ_GET_REPORT = 0x01,
 210         HID_REQ_GET_IDLE = 0x02,
 211         HID_REQ_GET_PROTOCOL = 0x03,
 212         HID_REQ_SET_REPORT = 0x09,
 213         HID_REQ_SET_IDLE = 0x0A,
 214         HID_REQ_SET_PROTOCOL = 0x0B
 215 };
 216
 217 enum libusb_hid_report_type {
 218         HID_REPORT_TYPE_INPUT = 0x01,
 219         HID_REPORT_TYPE_OUTPUT = 0x02,
 220         HID_REPORT_TYPE_FEATURE = 0x03
 221 };
 222
 223 struct hid_device_priv {
 224         uint16_t vid;
 225         uint16_t pid;
 226         uint8_t config;
 227         uint8_t nb_interfaces;
 228         bool uses_report_ids[3];        // input, ouptput, feature
 229         uint16_t input_report_size;
 230         uint16_t output_report_size;
 231         uint16_t feature_report_size;
 232         WCHAR string[3][MAX_USB_STRING_LENGTH];
 233         uint8_t string_index[3];        // man, prod, ser
 234 };
 235
 236 typedef struct libusb_device_descriptor USB_DEVICE_DESCRIPTOR, *PUSB_DEVICE_DESCRIPTOR;
 237 struct windows_device_priv {
 238         uint8_t depth;                                          // distance to HCD
 239         uint8_t port;                                           // port number on the hub
 240         uint8_t active_config;
 241         struct libusb_device *parent_dev;       // access to parent is required for usermode ops
 242         struct windows_usb_api_backend const *apib;
 243         char *path;                                                     // device interface path
 244         int sub_api;                                            // for WinUSB-like APIs
 245         struct {
 246                 char *path;                                             // each interface needs a device interface path,
 247                 struct windows_usb_api_backend const *apib; // an API backend (multiple drivers support),
 248                 int sub_api;
 249                 int8_t nb_endpoints;                    // and a set of endpoint addresses (USB_MAXENDPOINTS)
 250                 uint8_t *endpoint;
 251                 bool restricted_functionality;  // indicates if the interface functionality is restricted
 252                                                                                 // by Windows (eg. HID keyboards or mice cannot do R/W)
 253         } usb_interface[USB_MAXINTERFACES];
 254         struct hid_device_priv *hid;
 255         USB_DEVICE_DESCRIPTOR dev_descriptor;
 256         unsigned char **config_descriptor;      // list of pointers to the cached config descriptors
 257 };
 258
 259 static inline struct windows_device_priv *_device_priv(struct libusb_device *dev) {
 260         return (struct windows_device_priv *)dev->os_priv;
 261 }
 262
 263 static inline void windows_device_priv_init(libusb_device* dev) {
 264         struct windows_device_priv* p = _device_priv(dev);
 265         int i;
 266         p->depth = 0;
 267         p->port = 0;
 268         p->parent_dev = NULL;
 269         p->path = NULL;
 270         p->apib = &usb_api_backend[USB_API_UNSUPPORTED];
 271         p->sub_api = SUB_API_NOTSET;
 272         p->hid = NULL;
 273         p->active_config = 0;
 274         p->config_descriptor = NULL;
 275         memset(&(p->dev_descriptor), 0, sizeof(USB_DEVICE_DESCRIPTOR));
 276         for (i=0; i<USB_MAXINTERFACES; i++) {
 277                 p->usb_interface[i].path = NULL;
 278                 p->usb_interface[i].apib = &usb_api_backend[USB_API_UNSUPPORTED];
 279                 p->usb_interface[i].sub_api = SUB_API_NOTSET;
 280                 p->usb_interface[i].nb_endpoints = 0;
 281                 p->usb_interface[i].endpoint = NULL;
 282                 p->usb_interface[i].restricted_functionality = false;
 283         }
 284 }
 285
 286 static inline void windows_device_priv_release(libusb_device* dev) {
 287         struct windows_device_priv* p = _device_priv(dev);
 288         int i;
 289         safe_free(p->path);
 290         if ((dev->num_configurations > 0) && (p->config_descriptor != NULL)) {
 291                 for (i=0; i < dev->num_configurations; i++)
 292                         safe_free(p->config_descriptor[i]);
 293         }
 294         safe_free(p->config_descriptor);
 295         safe_free(p->hid);
 296         for (i=0; i<USB_MAXINTERFACES; i++) {
 297                 safe_free(p->usb_interface[i].path);
 298                 safe_free(p->usb_interface[i].endpoint);
 299         }
 300 }
 301
 302 struct interface_handle_t {
 303         HANDLE dev_handle; // WinUSB needs an extra handle for the file
 304         HANDLE api_handle; // used by the API to communicate with the device
 305 };
 306
 307 struct windows_device_handle_priv {
 308         int active_interface;
 309         struct interface_handle_t interface_handle[USB_MAXINTERFACES];
 310         int autoclaim_count[USB_MAXINTERFACES]; // For auto-release
 311 };
 312
 313 static inline struct windows_device_handle_priv *_device_handle_priv(
 314         struct libusb_device_handle *handle)
 315 {
 316         return (struct windows_device_handle_priv *) handle->os_priv;
 317 }
 318
 319 // used for async polling functions
 320 struct windows_transfer_priv {
 321         struct winfd pollable_fd;
 322         uint8_t interface_number;
 323         uint8_t *hid_buffer; // 1 byte extended data buffer, required for HID
 324         uint8_t *hid_dest;   // transfer buffer destination, required for HID
 325         size_t hid_expected_size;
 326 };
 327
 328 // used to match a device driver (including filter drivers) against a supported API
 329 struct driver_lookup {
 330         char list[MAX_KEY_LENGTH+1];// REG_MULTI_SZ list of services (driver) names
 331         const DWORD reg_prop;           // SPDRP registry key to use to retreive list
 332         const char* designation;        // internal designation (for debug output)
 333 };
 334
 335 /*
 336  * API macros - from libusb-win32 1.x
 337  */
 338 #define DLL_DECLARE_PREFIXNAME(api, ret, prefixname, name, args)    \
 339         typedef ret (api * __dll_##name##_t)args;                       \
 340         static __dll_##name##_t prefixname = NULL
 341
 342 #define DLL_LOAD_PREFIXNAME(dll, prefixname, name, ret_on_failure) \
 343         do {                                                           \
 344                 HMODULE h = GetModuleHandleA(#dll);                        \
 345         if (!h)                                                        \
 346                 h = LoadLibraryA(#dll);                                    \
 347         if (!h) {                                                      \
 348                 if (ret_on_failure) { return LIBUSB_ERROR_NOT_FOUND; }     \
 349                 else { break; }                                            \
 350         }                                                              \
 351         prefixname = (__dll_##name##_t)GetProcAddress(h, #name);       \
 352         if (prefixname) break;                                         \
 353         prefixname = (__dll_##name##_t)GetProcAddress(h, #name "A");   \
 354         if (prefixname) break;                                         \
 355         prefixname = (__dll_##name##_t)GetProcAddress(h, #name "W");   \
 356         if (prefixname) break;                                         \
 357         if(ret_on_failure)                                             \
 358                 return LIBUSB_ERROR_NOT_FOUND;                             \
 359         } while(0)
 360
 361 #define DLL_DECLARE(api, ret, name, args)   DLL_DECLARE_PREFIXNAME(api, ret, name, name, args)
 362 #define DLL_LOAD(dll, name, ret_on_failure) DLL_LOAD_PREFIXNAME(dll, name, name, ret_on_failure)
 363 #define DLL_DECLARE_PREFIXED(api, ret, prefix, name, args)   DLL_DECLARE_PREFIXNAME(api, ret, prefix##name, name, args)
 364 #define DLL_LOAD_PREFIXED(dll, prefix, name, ret_on_failure) DLL_LOAD_PREFIXNAME(dll, prefix##name, name, ret_on_failure)
 365
 366 /* OLE32 dependency */
 367 DLL_DECLARE_PREFIXED(WINAPI, HRESULT, p, CLSIDFromString, (LPCOLESTR, LPCLSID));
 368
 369 /* SetupAPI dependencies */
 370 DLL_DECLARE_PREFIXED(WINAPI, HDEVINFO, p, SetupDiGetClassDevsA, (const GUID*, PCSTR, HWND, DWORD));
 371 DLL_DECLARE_PREFIXED(WINAPI, BOOL, p, SetupDiEnumDeviceInfo, (HDEVINFO, DWORD, PSP_DEVINFO_DATA));
 372 DLL_DECLARE_PREFIXED(WINAPI, BOOL, p, SetupDiEnumDeviceInterfaces, (HDEVINFO, PSP_DEVINFO_DATA,
 373                         const GUID*, DWORD, PSP_DEVICE_INTERFACE_DATA));
 374 DLL_DECLARE_PREFIXED(WINAPI, BOOL, p, SetupDiGetDeviceInterfaceDetailA, (HDEVINFO, PSP_DEVICE_INTERFACE_DATA,
 375                         PSP_DEVICE_INTERFACE_DETAIL_DATA_A, DWORD, PDWORD, PSP_DEVINFO_DATA));
 376 DLL_DECLARE_PREFIXED(WINAPI, BOOL, p, SetupDiDestroyDeviceInfoList, (HDEVINFO));
 377 DLL_DECLARE_PREFIXED(WINAPI, HKEY, p, SetupDiOpenDevRegKey, (HDEVINFO, PSP_DEVINFO_DATA, DWORD, DWORD, DWORD, REGSAM));
 378 DLL_DECLARE_PREFIXED(WINAPI, BOOL, p, SetupDiGetDeviceRegistryPropertyA, (HDEVINFO,
 379                         PSP_DEVINFO_DATA, DWORD, PDWORD, PBYTE, DWORD, PDWORD));
 380 DLL_DECLARE_PREFIXED(WINAPI, HKEY, p, SetupDiOpenDeviceInterfaceRegKey, (HDEVINFO, PSP_DEVICE_INTERFACE_DATA, DWORD, DWORD));
 381 DLL_DECLARE_PREFIXED(WINAPI, LONG, p, RegQueryValueExW, (HKEY, LPCWSTR, LPDWORD, LPDWORD, LPBYTE, LPDWORD));
 382 DLL_DECLARE_PREFIXED(WINAPI, LONG, p, RegCloseKey, (HKEY));
 383
 384 /*
 385  * Windows DDK API definitions. Most of it copied from MinGW's includes
 386  */
 387 typedef DWORD DEVNODE, DEVINST;
 388 typedef DEVNODE *PDEVNODE, *PDEVINST;
 389 typedef DWORD RETURN_TYPE;
 390 typedef RETURN_TYPE CONFIGRET;
 391
 392 #define CR_SUCCESS                              0x00000000
 393 #define CR_NO_SUCH_DEVNODE                      0x0000000D
 394
 395 #define USB_DEVICE_DESCRIPTOR_TYPE              LIBUSB_DT_DEVICE
 396 #define USB_CONFIGURATION_DESCRIPTOR_TYPE       LIBUSB_DT_CONFIG
 397 #define USB_STRING_DESCRIPTOR_TYPE              LIBUSB_DT_STRING
 398 #define USB_INTERFACE_DESCRIPTOR_TYPE           LIBUSB_DT_INTERFACE
 399 #define USB_ENDPOINT_DESCRIPTOR_TYPE            LIBUSB_DT_ENDPOINT
 400
 401 #define USB_REQUEST_GET_STATUS                  LIBUSB_REQUEST_GET_STATUS
 402 #define USB_REQUEST_CLEAR_FEATURE               LIBUSB_REQUEST_CLEAR_FEATURE
 403 #define USB_REQUEST_SET_FEATURE                 LIBUSB_REQUEST_SET_FEATURE
 404 #define USB_REQUEST_SET_ADDRESS                 LIBUSB_REQUEST_SET_ADDRESS
 405 #define USB_REQUEST_GET_DESCRIPTOR              LIBUSB_REQUEST_GET_DESCRIPTOR
 406 #define USB_REQUEST_SET_DESCRIPTOR              LIBUSB_REQUEST_SET_DESCRIPTOR
 407 #define USB_REQUEST_GET_CONFIGURATION           LIBUSB_REQUEST_GET_CONFIGURATION
 408 #define USB_REQUEST_SET_CONFIGURATION           LIBUSB_REQUEST_SET_CONFIGURATION
 409 #define USB_REQUEST_GET_INTERFACE               LIBUSB_REQUEST_GET_INTERFACE
 410 #define USB_REQUEST_SET_INTERFACE               LIBUSB_REQUEST_SET_INTERFACE
 411 #define USB_REQUEST_SYNC_FRAME                  LIBUSB_REQUEST_SYNCH_FRAME
 412
 413 #define USB_GET_NODE_INFORMATION                258
 414 #define USB_GET_DESCRIPTOR_FROM_NODE_CONNECTION 260
 415 #define USB_GET_NODE_CONNECTION_NAME            261
 416 #define USB_GET_HUB_CAPABILITIES                271
 417 #if !defined(USB_GET_NODE_CONNECTION_INFORMATION_EX)
 418 #define USB_GET_NODE_CONNECTION_INFORMATION_EX  274
 419 #endif
 420 #if !defined(USB_GET_HUB_CAPABILITIES_EX)
 421 #define USB_GET_HUB_CAPABILITIES_EX             276
 422 #endif
 423
 424 #ifndef METHOD_BUFFERED
 425 #define METHOD_BUFFERED                         0
 426 #endif
 427 #ifndef FILE_ANY_ACCESS
 428 #define FILE_ANY_ACCESS                         0x00000000
 429 #endif
 430 #ifndef FILE_DEVICE_UNKNOWN
 431 #define FILE_DEVICE_UNKNOWN                     0x00000022
 432 #endif
 433 #ifndef FILE_DEVICE_USB
 434 #define FILE_DEVICE_USB                         FILE_DEVICE_UNKNOWN
 435 #endif
 436
 437 #ifndef CTL_CODE
 438 #define CTL_CODE(DeviceType, Function, Method, Access)( \
 439   ((DeviceType) << 16) | ((Access) << 14) | ((Function) << 2) | (Method))
 440 #endif
 441
 442 typedef enum USB_CONNECTION_STATUS {
 443         NoDeviceConnected,
 444         DeviceConnected,
 445         DeviceFailedEnumeration,
 446         DeviceGeneralFailure,
 447         DeviceCausedOvercurrent,
 448         DeviceNotEnoughPower,
 449         DeviceNotEnoughBandwidth,
 450         DeviceHubNestedTooDeeply,
 451         DeviceInLegacyHub
 452 } USB_CONNECTION_STATUS, *PUSB_CONNECTION_STATUS;
 453
 454 typedef enum USB_HUB_NODE {
 455         UsbHub,
 456         UsbMIParent
 457 } USB_HUB_NODE;
 458
 459 /* Cfgmgr32.dll interface */
 460 DLL_DECLARE(WINAPI, CONFIGRET, CM_Get_Parent, (PDEVINST, DEVINST, ULONG));
 461 DLL_DECLARE(WINAPI, CONFIGRET, CM_Get_Child, (PDEVINST, DEVINST, ULONG));
 462 DLL_DECLARE(WINAPI, CONFIGRET, CM_Get_Sibling, (PDEVINST, DEVINST, ULONG));
 463 DLL_DECLARE(WINAPI, CONFIGRET, CM_Get_Device_IDA, (DEVINST, PCHAR, ULONG, ULONG));
 464
 465 #define IOCTL_USB_GET_HUB_CAPABILITIES_EX \
 466   CTL_CODE( FILE_DEVICE_USB, USB_GET_HUB_CAPABILITIES_EX, METHOD_BUFFERED, FILE_ANY_ACCESS)
 467
 468 #define IOCTL_USB_GET_HUB_CAPABILITIES \
 469   CTL_CODE(FILE_DEVICE_USB, USB_GET_HUB_CAPABILITIES, METHOD_BUFFERED, FILE_ANY_ACCESS)
 470
 471 #define IOCTL_USB_GET_DESCRIPTOR_FROM_NODE_CONNECTION \
 472   CTL_CODE(FILE_DEVICE_USB, USB_GET_DESCRIPTOR_FROM_NODE_CONNECTION, METHOD_BUFFERED, FILE_ANY_ACCESS)
 473
 474 #define IOCTL_USB_GET_ROOT_HUB_NAME \
 475   CTL_CODE(FILE_DEVICE_USB, HCD_GET_ROOT_HUB_NAME, METHOD_BUFFERED, FILE_ANY_ACCESS)
 476
 477 #define IOCTL_USB_GET_NODE_INFORMATION \
 478   CTL_CODE(FILE_DEVICE_USB, USB_GET_NODE_INFORMATION, METHOD_BUFFERED, FILE_ANY_ACCESS)
 479
 480 #define IOCTL_USB_GET_NODE_CONNECTION_INFORMATION_EX \
 481   CTL_CODE(FILE_DEVICE_USB, USB_GET_NODE_CONNECTION_INFORMATION_EX, METHOD_BUFFERED, FILE_ANY_ACCESS)
 482
 483 #define IOCTL_USB_GET_NODE_CONNECTION_ATTRIBUTES \
 484   CTL_CODE(FILE_DEVICE_USB, USB_GET_NODE_CONNECTION_ATTRIBUTES, METHOD_BUFFERED, FILE_ANY_ACCESS)
 485
 486 #define IOCTL_USB_GET_NODE_CONNECTION_NAME \
 487   CTL_CODE(FILE_DEVICE_USB, USB_GET_NODE_CONNECTION_NAME, METHOD_BUFFERED, FILE_ANY_ACCESS)
 488
 489 // Most of the structures below need to be packed
 490 #pragma pack(push, 1)
 491
 492 typedef struct USB_INTERFACE_DESCRIPTOR {
 493   UCHAR  bLength;
 494   UCHAR  bDescriptorType;
 495   UCHAR  bInterfaceNumber;
 496   UCHAR  bAlternateSetting;
 497   UCHAR  bNumEndpoints;
 498   UCHAR  bInterfaceClass;
 499   UCHAR  bInterfaceSubClass;
 500   UCHAR  bInterfaceProtocol;
 501   UCHAR  iInterface;
 502 } USB_INTERFACE_DESCRIPTOR, *PUSB_INTERFACE_DESCRIPTOR;
 503
 504 typedef struct USB_CONFIGURATION_DESCRIPTOR {
 505   UCHAR  bLength;
 506   UCHAR  bDescriptorType;
 507   USHORT wTotalLength;
 508   UCHAR  bNumInterfaces;
 509   UCHAR  bConfigurationValue;
 510   UCHAR  iConfiguration;
 511   UCHAR  bmAttributes;
 512   UCHAR  MaxPower;
 513 } USB_CONFIGURATION_DESCRIPTOR, *PUSB_CONFIGURATION_DESCRIPTOR;
 514
 515 typedef struct USB_CONFIGURATION_DESCRIPTOR_SHORT {
 516         struct {
 517                 ULONG ConnectionIndex;
 518                 struct {
 519                         UCHAR bmRequest;
 520                         UCHAR bRequest;
 521                         USHORT wValue;
 522                         USHORT wIndex;
 523                         USHORT wLength;
 524                 } SetupPacket;
 525         } req;
 526         USB_CONFIGURATION_DESCRIPTOR data;
 527 } USB_CONFIGURATION_DESCRIPTOR_SHORT;
 528
 529 typedef struct USB_ENDPOINT_DESCRIPTOR {
 530   UCHAR  bLength;
 531   UCHAR  bDescriptorType;
 532   UCHAR  bEndpointAddress;
 533   UCHAR  bmAttributes;
 534   USHORT  wMaxPacketSize;
 535   UCHAR  bInterval;
 536 } USB_ENDPOINT_DESCRIPTOR, *PUSB_ENDPOINT_DESCRIPTOR;
 537
 538 typedef struct USB_DESCRIPTOR_REQUEST {
 539         ULONG  ConnectionIndex;
 540         struct {
 541                 UCHAR  bmRequest;
 542                 UCHAR  bRequest;
 543                 USHORT  wValue;
 544                 USHORT  wIndex;
 545                 USHORT  wLength;
 546         } SetupPacket;
 547 //      UCHAR  Data[0];
 548 } USB_DESCRIPTOR_REQUEST, *PUSB_DESCRIPTOR_REQUEST;
 549
 550 typedef struct USB_HUB_DESCRIPTOR {
 551         UCHAR  bDescriptorLength;
 552         UCHAR  bDescriptorType;
 553         UCHAR  bNumberOfPorts;
 554         USHORT  wHubCharacteristics;
 555         UCHAR  bPowerOnToPowerGood;
 556         UCHAR  bHubControlCurrent;
 557         UCHAR  bRemoveAndPowerMask[64];
 558 } USB_HUB_DESCRIPTOR, *PUSB_HUB_DESCRIPTOR;
 559
 560 typedef struct USB_ROOT_HUB_NAME {
 561         ULONG  ActualLength;
 562         WCHAR  RootHubName[1];
 563 } USB_ROOT_HUB_NAME, *PUSB_ROOT_HUB_NAME;
 564
 565 typedef struct USB_ROOT_HUB_NAME_FIXED {
 566         ULONG ActualLength;
 567         WCHAR RootHubName[MAX_PATH_LENGTH];
 568 } USB_ROOT_HUB_NAME_FIXED;
 569
 570 typedef struct USB_NODE_CONNECTION_NAME {
 571         ULONG  ConnectionIndex;
 572         ULONG  ActualLength;
 573         WCHAR  NodeName[1];
 574 } USB_NODE_CONNECTION_NAME, *PUSB_NODE_CONNECTION_NAME;
 575
 576 typedef struct USB_NODE_CONNECTION_NAME_FIXED {
 577         ULONG ConnectionIndex;
 578         ULONG ActualLength;
 579         WCHAR NodeName[MAX_PATH_LENGTH];
 580 } USB_NODE_CONNECTION_NAME_FIXED;
 581
 582 typedef struct USB_HUB_NAME_FIXED {
 583         union {
 584                 USB_ROOT_HUB_NAME_FIXED root;
 585                 USB_NODE_CONNECTION_NAME_FIXED node;
 586         } u;
 587 } USB_HUB_NAME_FIXED;
 588
 589 typedef struct USB_HUB_INFORMATION {
 590         USB_HUB_DESCRIPTOR  HubDescriptor;
 591         BOOLEAN  HubIsBusPowered;
 592 } USB_HUB_INFORMATION, *PUSB_HUB_INFORMATION;
 593
 594 typedef struct USB_MI_PARENT_INFORMATION {
 595   ULONG  NumberOfInterfaces;
 596 } USB_MI_PARENT_INFORMATION, *PUSB_MI_PARENT_INFORMATION;
 597
 598 typedef struct USB_NODE_INFORMATION {
 599         USB_HUB_NODE  NodeType;
 600         union {
 601                 USB_HUB_INFORMATION  HubInformation;
 602                 USB_MI_PARENT_INFORMATION  MiParentInformation;
 603         } u;
 604 } USB_NODE_INFORMATION, *PUSB_NODE_INFORMATION;
 605
 606 typedef struct USB_PIPE_INFO {
 607         USB_ENDPOINT_DESCRIPTOR  EndpointDescriptor;
 608         ULONG  ScheduleOffset;
 609 } USB_PIPE_INFO, *PUSB_PIPE_INFO;
 610
 611 typedef struct USB_NODE_CONNECTION_INFORMATION_EX {
 612         ULONG  ConnectionIndex;
 613         USB_DEVICE_DESCRIPTOR  DeviceDescriptor;
 614         UCHAR  CurrentConfigurationValue;
 615         UCHAR  Speed;
 616         BOOLEAN  DeviceIsHub;
 617         USHORT  DeviceAddress;
 618         ULONG  NumberOfOpenPipes;
 619         USB_CONNECTION_STATUS  ConnectionStatus;
 620 //      USB_PIPE_INFO  PipeList[0];
 621 } USB_NODE_CONNECTION_INFORMATION_EX, *PUSB_NODE_CONNECTION_INFORMATION_EX;
 622
 623 typedef struct USB_HUB_CAP_FLAGS {
 624         ULONG HubIsHighSpeedCapable:1;
 625         ULONG HubIsHighSpeed:1;
 626         ULONG HubIsMultiTtCapable:1;
 627         ULONG HubIsMultiTt:1;
 628         ULONG HubIsRoot:1;
 629         ULONG HubIsArmedWakeOnConnect:1;
 630         ULONG ReservedMBZ:26;
 631 } USB_HUB_CAP_FLAGS, *PUSB_HUB_CAP_FLAGS;
 632
 633 typedef struct USB_HUB_CAPABILITIES {
 634   ULONG  HubIs2xCapable : 1;
 635 } USB_HUB_CAPABILITIES, *PUSB_HUB_CAPABILITIES;
 636
 637 typedef struct USB_HUB_CAPABILITIES_EX {
 638         USB_HUB_CAP_FLAGS CapabilityFlags;
 639 } USB_HUB_CAPABILITIES_EX, *PUSB_HUB_CAPABILITIES_EX;
 640
 641 #pragma pack(pop)
 642
 643 /* winusb.dll interface */
 644
 645 #define SHORT_PACKET_TERMINATE  0x01
 646 #define AUTO_CLEAR_STALL        0x02
 647 #define PIPE_TRANSFER_TIMEOUT   0x03
 648 #define IGNORE_SHORT_PACKETS    0x04
 649 #define ALLOW_PARTIAL_READS     0x05
 650 #define AUTO_FLUSH              0x06
 651 #define RAW_IO                  0x07
 652 #define MAXIMUM_TRANSFER_SIZE   0x08
 653 #define AUTO_SUSPEND            0x81
 654 #define SUSPEND_DELAY           0x83
 655 #define DEVICE_SPEED            0x01
 656 #define LowSpeed                0x01
 657 #define FullSpeed               0x02
 658 #define HighSpeed               0x03
 659
 660 typedef enum USBD_PIPE_TYPE {
 661         UsbdPipeTypeControl,
 662         UsbdPipeTypeIsochronous,
 663         UsbdPipeTypeBulk,
 664         UsbdPipeTypeInterrupt
 665 } USBD_PIPE_TYPE;
 666
 667 typedef struct {
 668   USBD_PIPE_TYPE PipeType;
 669   UCHAR          PipeId;
 670   USHORT         MaximumPacketSize;
 671   UCHAR          Interval;
 672 } WINUSB_PIPE_INFORMATION, *PWINUSB_PIPE_INFORMATION;
 673
 674 #pragma pack(1)
 675 typedef struct {
 676   UCHAR  request_type;
 677   UCHAR  request;
 678   USHORT value;
 679   USHORT index;
 680   USHORT length;
 681 } WINUSB_SETUP_PACKET, *PWINUSB_SETUP_PACKET;
 682 #pragma pack()
 683
 684 typedef void *WINUSB_INTERFACE_HANDLE, *PWINUSB_INTERFACE_HANDLE;
 685
 686 typedef BOOL (WINAPI *WinUsb_AbortPipe_t)(
 687         WINUSB_INTERFACE_HANDLE InterfaceHandle,
 688         UCHAR PipeID
 689 );
 690 typedef BOOL (WINAPI *WinUsb_ControlTransfer_t)(
 691         WINUSB_INTERFACE_HANDLE InterfaceHandle,
 692         WINUSB_SETUP_PACKET SetupPacket,
 693         PUCHAR Buffer,
 694         ULONG BufferLength,
 695         PULONG LengthTransferred,
 696         LPOVERLAPPED Overlapped
 697 );
 698 typedef BOOL (WINAPI *WinUsb_FlushPipe_t)(
 699         WINUSB_INTERFACE_HANDLE InterfaceHandle,
 700         UCHAR PipeID
 701 );
 702 typedef BOOL (WINAPI *WinUsb_Free_t)(
 703         WINUSB_INTERFACE_HANDLE InterfaceHandle
 704 );
 705 typedef BOOL (WINAPI *WinUsb_GetAssociatedInterface_t)(
 706         WINUSB_INTERFACE_HANDLE InterfaceHandle,
 707         UCHAR AssociatedInterfaceIndex,
 708         PWINUSB_INTERFACE_HANDLE AssociatedInterfaceHandle
 709 );
 710 typedef BOOL (WINAPI *WinUsb_GetCurrentAlternateSetting_t)(
 711         WINUSB_INTERFACE_HANDLE InterfaceHandle,
 712         PUCHAR AlternateSetting
 713 );
 714 typedef BOOL (WINAPI *WinUsb_GetDescriptor_t)(
 715         WINUSB_INTERFACE_HANDLE InterfaceHandle,
 716         UCHAR DescriptorType,
 717         UCHAR Index,
 718         USHORT LanguageID,
 719         PUCHAR Buffer,
 720         ULONG BufferLength,
 721         PULONG LengthTransferred
 722 );
 723 typedef BOOL (WINAPI *WinUsb_GetOverlappedResult_t)(
 724         WINUSB_INTERFACE_HANDLE InterfaceHandle,
 725         LPOVERLAPPED lpOverlapped,
 726         LPDWORD lpNumberOfBytesTransferred,
 727         BOOL bWait
 728 );
 729 typedef BOOL (WINAPI *WinUsb_GetPipePolicy_t)(
 730         WINUSB_INTERFACE_HANDLE InterfaceHandle,
 731         UCHAR PipeID,
 732         ULONG PolicyType,
 733         PULONG ValueLength,
 734         PVOID Value
 735 );
 736 typedef BOOL (WINAPI *WinUsb_GetPowerPolicy_t)(
 737         WINUSB_INTERFACE_HANDLE InterfaceHandle,
 738         ULONG PolicyType,
 739         PULONG ValueLength,
 740         PVOID Value
 741 );
 742 typedef BOOL (WINAPI *WinUsb_Initialize_t)(
 743         HANDLE DeviceHandle,
 744         PWINUSB_INTERFACE_HANDLE InterfaceHandle
 745 );
 746 typedef BOOL (WINAPI *WinUsb_QueryDeviceInformation_t)(
 747         WINUSB_INTERFACE_HANDLE InterfaceHandle,
 748         ULONG InformationType,
 749         PULONG BufferLength,
 750         PVOID Buffer
 751 );
 752 typedef BOOL (WINAPI *WinUsb_QueryInterfaceSettings_t)(
 753         WINUSB_INTERFACE_HANDLE InterfaceHandle,
 754         UCHAR AlternateSettingNumber,
 755         PUSB_INTERFACE_DESCRIPTOR UsbAltInterfaceDescriptor
 756 );
 757 typedef BOOL (WINAPI *WinUsb_QueryPipe_t)(
 758         WINUSB_INTERFACE_HANDLE InterfaceHandle,
 759         UCHAR AlternateInterfaceNumber,
 760         UCHAR PipeIndex,
 761         PWINUSB_PIPE_INFORMATION PipeInformation
 762 );
 763 typedef BOOL (WINAPI *WinUsb_ReadPipe_t)(
 764         WINUSB_INTERFACE_HANDLE InterfaceHandle,
 765         UCHAR PipeID,
 766         PUCHAR Buffer,
 767         ULONG BufferLength,
 768         PULONG LengthTransferred,
 769         LPOVERLAPPED Overlapped
 770 );
 771 typedef BOOL (WINAPI *WinUsb_ResetPipe_t)(
 772         WINUSB_INTERFACE_HANDLE InterfaceHandle,
 773         UCHAR PipeID
 774 );
 775 typedef BOOL (WINAPI *WinUsb_SetCurrentAlternateSetting_t)(
 776         WINUSB_INTERFACE_HANDLE InterfaceHandle,
 777         UCHAR AlternateSetting
 778 );
 779 typedef BOOL (WINAPI *WinUsb_SetPipePolicy_t)(
 780         WINUSB_INTERFACE_HANDLE InterfaceHandle,
 781         UCHAR PipeID,
 782         ULONG PolicyType,
 783         ULONG ValueLength,
 784         PVOID Value
 785 );
 786 typedef BOOL (WINAPI *WinUsb_SetPowerPolicy_t)(
 787         WINUSB_INTERFACE_HANDLE InterfaceHandle,
 788         ULONG PolicyType,
 789         ULONG ValueLength,
 790         PVOID Value
 791 );
 792 typedef BOOL (WINAPI *WinUsb_WritePipe_t)(
 793         WINUSB_INTERFACE_HANDLE InterfaceHandle,
 794         UCHAR PipeID,
 795         PUCHAR Buffer,
 796         ULONG BufferLength,
 797         PULONG LengthTransferred,
 798         LPOVERLAPPED Overlapped
 799 );
 800 typedef BOOL (WINAPI *WinUsb_ResetDevice_t)(
 801         WINUSB_INTERFACE_HANDLE InterfaceHandle
 802 );
 803
 804 /* /!\ These must match the ones from the official libusbk.h */
 805 typedef enum _KUSB_FNID
 806 {
 807         KUSB_FNID_Init,
 808         KUSB_FNID_Free,
 809         KUSB_FNID_ClaimInterface,
 810         KUSB_FNID_ReleaseInterface,
 811         KUSB_FNID_SetAltInterface,
 812         KUSB_FNID_GetAltInterface,
 813         KUSB_FNID_GetDescriptor,
 814         KUSB_FNID_ControlTransfer,
 815         KUSB_FNID_SetPowerPolicy,
 816         KUSB_FNID_GetPowerPolicy,
 817         KUSB_FNID_SetConfiguration,
 818         KUSB_FNID_GetConfiguration,
 819         KUSB_FNID_ResetDevice,
 820         KUSB_FNID_Initialize,
 821         KUSB_FNID_SelectInterface,
 822         KUSB_FNID_GetAssociatedInterface,
 823         KUSB_FNID_Clone,
 824         KUSB_FNID_QueryInterfaceSettings,
 825         KUSB_FNID_QueryDeviceInformation,
 826         KUSB_FNID_SetCurrentAlternateSetting,
 827         KUSB_FNID_GetCurrentAlternateSetting,
 828         KUSB_FNID_QueryPipe,
 829         KUSB_FNID_SetPipePolicy,
 830         KUSB_FNID_GetPipePolicy,
 831         KUSB_FNID_ReadPipe,
 832         KUSB_FNID_WritePipe,
 833         KUSB_FNID_ResetPipe,
 834         KUSB_FNID_AbortPipe,
 835         KUSB_FNID_FlushPipe,
 836         KUSB_FNID_IsoReadPipe,
 837         KUSB_FNID_IsoWritePipe,
 838         KUSB_FNID_GetCurrentFrameNumber,
 839         KUSB_FNID_GetOverlappedResult,
 840         KUSB_FNID_GetProperty,
 841         KUSB_FNID_COUNT,
 842 } KUSB_FNID;
 843
 844 typedef struct _KLIB_VERSION {
 845         INT Major;
 846         INT Minor;
 847         INT Micro;
 848         INT Nano;
 849 } KLIB_VERSION;
 850 typedef KLIB_VERSION* PKLIB_VERSION;
 851
 852 typedef BOOL (WINAPI *LibK_GetProcAddress_t)(
 853         PVOID* ProcAddress,
 854         ULONG DriverID,
 855         ULONG FunctionID
 856 );
 857
 858 typedef VOID (WINAPI *LibK_GetVersion_t)(
 859         PKLIB_VERSION Version
 860 );
 861
 862 struct winusb_interface {
 863         bool initialized;
 864         WinUsb_AbortPipe_t AbortPipe;
 865         WinUsb_ControlTransfer_t ControlTransfer;
 866         WinUsb_FlushPipe_t FlushPipe;
 867         WinUsb_Free_t Free;
 868         WinUsb_GetAssociatedInterface_t GetAssociatedInterface;
 869         WinUsb_GetCurrentAlternateSetting_t GetCurrentAlternateSetting;
 870         WinUsb_GetDescriptor_t GetDescriptor;
 871         WinUsb_GetOverlappedResult_t GetOverlappedResult;
 872         WinUsb_GetPipePolicy_t GetPipePolicy;
 873         WinUsb_GetPowerPolicy_t GetPowerPolicy;
 874         WinUsb_Initialize_t Initialize;
 875         WinUsb_QueryDeviceInformation_t QueryDeviceInformation;
 876         WinUsb_QueryInterfaceSettings_t QueryInterfaceSettings;
 877         WinUsb_QueryPipe_t QueryPipe;
 878         WinUsb_ReadPipe_t ReadPipe;
 879         WinUsb_ResetPipe_t ResetPipe;
 880         WinUsb_SetCurrentAlternateSetting_t SetCurrentAlternateSetting;
 881         WinUsb_SetPipePolicy_t SetPipePolicy;
 882         WinUsb_SetPowerPolicy_t SetPowerPolicy;
 883         WinUsb_WritePipe_t WritePipe;
 884         WinUsb_ResetDevice_t ResetDevice;
 885 };
 886
 887 /* hid.dll interface */
 888
 889 #define HIDP_STATUS_SUCCESS  0x110000
 890 typedef void* PHIDP_PREPARSED_DATA;
 891
 892 #pragma pack(1)
 893 typedef struct {
 894         ULONG Size;
 895         USHORT VendorID;
 896         USHORT ProductID;
 897         USHORT VersionNumber;
 898 } HIDD_ATTRIBUTES, *PHIDD_ATTRIBUTES;
 899 #pragma pack()
 900
 901 typedef USHORT USAGE;
 902 typedef struct {
 903   USAGE Usage;
 904   USAGE UsagePage;
 905   USHORT InputReportByteLength;
 906   USHORT OutputReportByteLength;
 907   USHORT FeatureReportByteLength;
 908   USHORT Reserved[17];
 909   USHORT NumberLinkCollectionNodes;
 910   USHORT NumberInputButtonCaps;
 911   USHORT NumberInputValueCaps;
 912   USHORT NumberInputDataIndices;
 913   USHORT NumberOutputButtonCaps;
 914   USHORT NumberOutputValueCaps;
 915   USHORT NumberOutputDataIndices;
 916   USHORT NumberFeatureButtonCaps;
 917   USHORT NumberFeatureValueCaps;
 918   USHORT NumberFeatureDataIndices;
 919 } HIDP_CAPS, *PHIDP_CAPS;
 920
 921 typedef enum _HIDP_REPORT_TYPE {
 922   HidP_Input,
 923   HidP_Output,
 924   HidP_Feature
 925 } HIDP_REPORT_TYPE;
 926
 927 typedef struct _HIDP_VALUE_CAPS {
 928   USAGE  UsagePage;
 929   UCHAR  ReportID;
 930   BOOLEAN  IsAlias;
 931   USHORT  BitField;
 932   USHORT  LinkCollection;
 933   USAGE  LinkUsage;
 934   USAGE  LinkUsagePage;
 935   BOOLEAN  IsRange;
 936   BOOLEAN  IsStringRange;
 937   BOOLEAN  IsDesignatorRange;
 938   BOOLEAN  IsAbsolute;
 939   BOOLEAN  HasNull;
 940   UCHAR  Reserved;
 941   USHORT  BitSize;
 942   USHORT  ReportCount;
 943   USHORT  Reserved2[5];
 944   ULONG  UnitsExp;
 945   ULONG  Units;
 946   LONG  LogicalMin, LogicalMax;
 947   LONG  PhysicalMin, PhysicalMax;
 948         union {
 949           struct {
 950                 USAGE  UsageMin, UsageMax;
 951                 USHORT  StringMin, StringMax;
 952                 USHORT  DesignatorMin, DesignatorMax;
 953                 USHORT  DataIndexMin, DataIndexMax;
 954           } Range;
 955           struct {
 956                 USAGE  Usage, Reserved1;
 957                 USHORT  StringIndex, Reserved2;
 958                 USHORT  DesignatorIndex, Reserved3;
 959                 USHORT  DataIndex, Reserved4;
 960           } NotRange;
 961         } u;
 962 } HIDP_VALUE_CAPS, *PHIDP_VALUE_CAPS;
 963
 964 DLL_DECLARE(WINAPI, BOOL, HidD_GetAttributes, (HANDLE, PHIDD_ATTRIBUTES));
 965 DLL_DECLARE(WINAPI, VOID, HidD_GetHidGuid, (LPGUID));
 966 DLL_DECLARE(WINAPI, BOOL, HidD_GetPreparsedData, (HANDLE, PHIDP_PREPARSED_DATA *));
 967 DLL_DECLARE(WINAPI, BOOL, HidD_FreePreparsedData, (PHIDP_PREPARSED_DATA));
 968 DLL_DECLARE(WINAPI, BOOL, HidD_GetManufacturerString, (HANDLE, PVOID, ULONG));
 969 DLL_DECLARE(WINAPI, BOOL, HidD_GetProductString, (HANDLE, PVOID, ULONG));
 970 DLL_DECLARE(WINAPI, BOOL, HidD_GetSerialNumberString, (HANDLE, PVOID, ULONG));
 971 DLL_DECLARE(WINAPI, LONG, HidP_GetCaps, (PHIDP_PREPARSED_DATA, PHIDP_CAPS));
 972 DLL_DECLARE(WINAPI, BOOL, HidD_SetNumInputBuffers, (HANDLE, ULONG));
 973 DLL_DECLARE(WINAPI, BOOL, HidD_SetFeature, (HANDLE, PVOID, ULONG));
 974 DLL_DECLARE(WINAPI, BOOL, HidD_GetFeature, (HANDLE, PVOID, ULONG));
 975 DLL_DECLARE(WINAPI, BOOL, HidD_GetPhysicalDescriptor, (HANDLE, PVOID, ULONG));
 976 DLL_DECLARE(WINAPI, BOOL, HidD_GetInputReport, (HANDLE, PVOID, ULONG));
 977 DLL_DECLARE(WINAPI, BOOL, HidD_SetOutputReport, (HANDLE, PVOID, ULONG));
 978 DLL_DECLARE(WINAPI, BOOL, HidD_FlushQueue, (HANDLE));
 979 DLL_DECLARE(WINAPI, BOOL, HidP_GetValueCaps, (HIDP_REPORT_TYPE, PHIDP_VALUE_CAPS, PULONG, PHIDP_PREPARSED_DATA));