usbdi_util.c revision 1.63.2.11
1 /* $NetBSD: usbdi_util.c,v 1.63.2.11 2015/09/29 11:38:29 skrll Exp $ */ 2 3 /* 4 * Copyright (c) 1998, 2012 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Lennart Augustsson (lennart (at) augustsson.net) at 9 * Carlstedt Research & Technology and Matthew R. Green (mrg (at) eterna.com.au). 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 22 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 23 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 24 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 30 * POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33 #include <sys/cdefs.h> 34 __KERNEL_RCSID(0, "$NetBSD: usbdi_util.c,v 1.63.2.11 2015/09/29 11:38:29 skrll Exp $"); 35 36 #ifdef _KERNEL_OPT 37 #include "opt_usb.h" 38 #endif 39 40 #include <sys/param.h> 41 #include <sys/systm.h> 42 #include <sys/kernel.h> 43 #include <sys/kmem.h> 44 #include <sys/proc.h> 45 #include <sys/device.h> 46 #include <sys/bus.h> 47 48 #include <dev/usb/usb.h> 49 #include <dev/usb/usbhid.h> 50 #include <dev/usb/usbdi.h> 51 #include <dev/usb/usbdivar.h> 52 #include <dev/usb/usbdi_util.h> 53 #include <dev/usb/usbhist.h> 54 55 #define DPRINTFN(N,FMT,A,B,C,D) USBHIST_LOGN(usbdebug,N,FMT,A,B,C,D) 56 57 usbd_status 58 usbd_get_desc(struct usbd_device *dev, int type, int index, int len, void *desc) 59 { 60 usb_device_request_t req; 61 62 USBHIST_FUNC(); USBHIST_CALLED(usbdebug); 63 64 DPRINTFN(3,"type=%d, index=%d, len=%d", type, index, len, 0); 65 66 req.bmRequestType = UT_READ_DEVICE; 67 req.bRequest = UR_GET_DESCRIPTOR; 68 USETW2(req.wValue, type, index); 69 USETW(req.wIndex, 0); 70 USETW(req.wLength, len); 71 return usbd_do_request(dev, &req, desc); 72 } 73 74 usbd_status 75 usbd_get_config_desc(struct usbd_device *dev, int confidx, 76 usb_config_descriptor_t *d) 77 { 78 usbd_status err; 79 USBHIST_FUNC(); USBHIST_CALLED(usbdebug); 80 81 DPRINTFN(3, "confidx=%d", confidx, 0, 0, 0); 82 err = usbd_get_desc(dev, UDESC_CONFIG, confidx, 83 USB_CONFIG_DESCRIPTOR_SIZE, d); 84 if (err) 85 return err; 86 if (d->bDescriptorType != UDESC_CONFIG) { 87 DPRINTFN(1, "confidx=%d, bad desc len=%d type=%d", 88 confidx, d->bLength, d->bDescriptorType, 0); 89 return USBD_INVAL; 90 } 91 return USBD_NORMAL_COMPLETION; 92 } 93 94 usbd_status 95 usbd_get_config_desc_full(struct usbd_device *dev, int conf, void *d, int size) 96 { 97 USBHIST_FUNC(); USBHIST_CALLED(usbdebug); 98 99 DPRINTFN(3, "conf=%d", conf, 0, 0, 0); 100 return usbd_get_desc(dev, UDESC_CONFIG, conf, size, d); 101 } 102 103 usbd_status 104 usbd_get_bos_desc(struct usbd_device *dev, int confidx, 105 usb_bos_descriptor_t *d) 106 { 107 usbd_status err; 108 USBHIST_FUNC(); USBHIST_CALLED(usbdebug); 109 110 DPRINTFN(3, "confidx=%d", confidx, 0, 0, 0); 111 err = usbd_get_desc(dev, UDESC_BOS, confidx, 112 USB_BOS_DESCRIPTOR_SIZE, d); 113 if (err) 114 return (err); 115 if (d->bDescriptorType != UDESC_BOS) { 116 DPRINTFN(1, "confidx=%d, bad desc len=%d type=%d", 117 confidx, d->bLength, d->bDescriptorType, 0); 118 return USBD_INVAL; 119 } 120 return USBD_NORMAL_COMPLETION; 121 } 122 123 usbd_status 124 usbd_get_bos_desc_full(struct usbd_device *dev, int conf, void *d, int size) 125 { 126 USBHIST_FUNC(); USBHIST_CALLED(usbdebug); 127 128 DPRINTFN(3, "conf=%d", conf, 0, 0, 0); 129 return usbd_get_desc(dev, UDESC_BOS, conf, size, d); 130 } 131 132 usbd_status 133 usbd_get_device_desc(struct usbd_device *dev, usb_device_descriptor_t *d) 134 { 135 USBHIST_FUNC(); USBHIST_CALLED(usbdebug); 136 137 return (usbd_get_desc(dev, UDESC_DEVICE, 138 0, USB_DEVICE_DESCRIPTOR_SIZE, d)); 139 } 140 141 usbd_status 142 usbd_get_device_status(struct usbd_device *dev, usb_status_t *st) 143 { 144 usb_device_request_t req; 145 146 req.bmRequestType = UT_READ_DEVICE; 147 req.bRequest = UR_GET_STATUS; 148 USETW(req.wValue, 0); 149 USETW(req.wIndex, 0); 150 USETW(req.wLength, sizeof(usb_status_t)); 151 return usbd_do_request(dev, &req, st); 152 } 153 154 usbd_status 155 usbd_get_hub_status(struct usbd_device *dev, usb_hub_status_t *st) 156 { 157 usb_device_request_t req; 158 159 req.bmRequestType = UT_READ_CLASS_DEVICE; 160 req.bRequest = UR_GET_STATUS; 161 USETW(req.wValue, 0); 162 USETW(req.wIndex, 0); 163 USETW(req.wLength, sizeof(usb_hub_status_t)); 164 return usbd_do_request(dev, &req, st); 165 } 166 167 usbd_status 168 usbd_set_address(struct usbd_device *dev, int addr) 169 { 170 usb_device_request_t req; 171 172 req.bmRequestType = UT_WRITE_DEVICE; 173 req.bRequest = UR_SET_ADDRESS; 174 USETW(req.wValue, addr); 175 USETW(req.wIndex, 0); 176 USETW(req.wLength, 0); 177 return usbd_do_request(dev, &req, 0); 178 } 179 180 usbd_status 181 usbd_get_port_status(struct usbd_device *dev, int port, usb_port_status_t *ps) 182 { 183 usb_device_request_t req; 184 185 req.bmRequestType = UT_READ_CLASS_OTHER; 186 req.bRequest = UR_GET_STATUS; 187 USETW(req.wValue, 0); 188 USETW(req.wIndex, port); 189 USETW(req.wLength, sizeof(*ps)); 190 return usbd_do_request(dev, &req, ps); 191 } 192 193 /* USB 3.1 10.16.2.6, 10.16.2.6.3 */ 194 usbd_status 195 usbd_get_port_status_ext(struct usbd_device *dev, int port, 196 usb_port_status_ext_t *pse) 197 { 198 usb_device_request_t req; 199 200 req.bmRequestType = UT_READ_CLASS_OTHER; 201 req.bRequest = UR_GET_STATUS; 202 USETW2(req.wValue, 0, UR_PST_EXT_PORT_STATUS); 203 USETW(req.wIndex, port); 204 USETW(req.wLength, sizeof(*pse)); 205 return (usbd_do_request(dev, &req, pse)); 206 } 207 208 usbd_status 209 usbd_clear_hub_feature(struct usbd_device *dev, int sel) 210 { 211 usb_device_request_t req; 212 213 req.bmRequestType = UT_WRITE_CLASS_DEVICE; 214 req.bRequest = UR_CLEAR_FEATURE; 215 USETW(req.wValue, sel); 216 USETW(req.wIndex, 0); 217 USETW(req.wLength, 0); 218 return usbd_do_request(dev, &req, 0); 219 } 220 221 usbd_status 222 usbd_set_hub_feature(struct usbd_device *dev, int sel) 223 { 224 usb_device_request_t req; 225 226 req.bmRequestType = UT_WRITE_CLASS_DEVICE; 227 req.bRequest = UR_SET_FEATURE; 228 USETW(req.wValue, sel); 229 USETW(req.wIndex, 0); 230 USETW(req.wLength, 0); 231 return usbd_do_request(dev, &req, 0); 232 } 233 234 usbd_status 235 usbd_clear_port_feature(struct usbd_device *dev, int port, int sel) 236 { 237 usb_device_request_t req; 238 239 req.bmRequestType = UT_WRITE_CLASS_OTHER; 240 req.bRequest = UR_CLEAR_FEATURE; 241 USETW(req.wValue, sel); 242 USETW(req.wIndex, port); 243 USETW(req.wLength, 0); 244 return usbd_do_request(dev, &req, 0); 245 } 246 247 usbd_status 248 usbd_set_port_feature(struct usbd_device *dev, int port, int sel) 249 { 250 usb_device_request_t req; 251 252 req.bmRequestType = UT_WRITE_CLASS_OTHER; 253 req.bRequest = UR_SET_FEATURE; 254 USETW(req.wValue, sel); 255 USETW(req.wIndex, port); 256 USETW(req.wLength, 0); 257 return usbd_do_request(dev, &req, 0); 258 } 259 260 usbd_status 261 usbd_set_port_u1_timeout(struct usbd_device *dev, int port, int timeout) 262 { 263 usb_device_request_t req; 264 265 req.bmRequestType = UT_WRITE_CLASS_OTHER; 266 req.bRequest = UR_SET_FEATURE; 267 USETW(req.wValue, UHF_PORT_U1_TIMEOUT); 268 USETW2(req.wIndex, timeout, port); 269 USETW(req.wLength, 0); 270 return usbd_do_request(dev, &req, 0); 271 } 272 273 usbd_status 274 usbd_set_port_u2_timeout(struct usbd_device *dev, int port, int timeout) 275 { 276 usb_device_request_t req; 277 278 req.bmRequestType = UT_WRITE_CLASS_OTHER; 279 req.bRequest = UR_SET_FEATURE; 280 USETW(req.wValue, UHF_PORT_U2_TIMEOUT); 281 USETW2(req.wIndex, timeout, port); 282 USETW(req.wLength, 0); 283 return usbd_do_request(dev, &req, 0); 284 } 285 286 usbd_status 287 usbd_get_protocol(struct usbd_interface *iface, uint8_t *report) 288 { 289 usb_interface_descriptor_t *id = usbd_get_interface_descriptor(iface); 290 struct usbd_device *dev; 291 usb_device_request_t req; 292 293 USBHIST_FUNC(); USBHIST_CALLED(usbdebug); 294 295 DPRINTFN(4, "iface=%p, endpt=%d", iface, id->bInterfaceNumber, 0, 0); 296 if (id == NULL) 297 return USBD_IOERROR; 298 usbd_interface2device_handle(iface, &dev); 299 req.bmRequestType = UT_READ_CLASS_INTERFACE; 300 req.bRequest = UR_GET_PROTOCOL; 301 USETW(req.wValue, 0); 302 USETW(req.wIndex, id->bInterfaceNumber); 303 USETW(req.wLength, 1); 304 return usbd_do_request(dev, &req, report); 305 } 306 307 usbd_status 308 usbd_set_protocol(struct usbd_interface *iface, int report) 309 { 310 usb_interface_descriptor_t *id = usbd_get_interface_descriptor(iface); 311 struct usbd_device *dev; 312 usb_device_request_t req; 313 314 USBHIST_FUNC(); USBHIST_CALLED(usbdebug); 315 316 DPRINTFN(4, "iface=%p, report=%d, endpt=%d", iface, report, 317 id->bInterfaceNumber, 0); 318 if (id == NULL) 319 return USBD_IOERROR; 320 usbd_interface2device_handle(iface, &dev); 321 req.bmRequestType = UT_WRITE_CLASS_INTERFACE; 322 req.bRequest = UR_SET_PROTOCOL; 323 USETW(req.wValue, report); 324 USETW(req.wIndex, id->bInterfaceNumber); 325 USETW(req.wLength, 0); 326 return usbd_do_request(dev, &req, 0); 327 } 328 329 usbd_status 330 usbd_set_report(struct usbd_interface *iface, int type, int id, void *data, 331 int len) 332 { 333 usb_interface_descriptor_t *ifd = usbd_get_interface_descriptor(iface); 334 struct usbd_device *dev; 335 usb_device_request_t req; 336 337 USBHIST_FUNC(); USBHIST_CALLED(usbdebug); 338 339 DPRINTFN(4, "len=%d", len, 0, 0, 0); 340 if (ifd == NULL) 341 return USBD_IOERROR; 342 usbd_interface2device_handle(iface, &dev); 343 req.bmRequestType = UT_WRITE_CLASS_INTERFACE; 344 req.bRequest = UR_SET_REPORT; 345 USETW2(req.wValue, type, id); 346 USETW(req.wIndex, ifd->bInterfaceNumber); 347 USETW(req.wLength, len); 348 return usbd_do_request(dev, &req, data); 349 } 350 351 usbd_status 352 usbd_get_report(struct usbd_interface *iface, int type, int id, void *data, 353 int len) 354 { 355 usb_interface_descriptor_t *ifd = usbd_get_interface_descriptor(iface); 356 struct usbd_device *dev; 357 usb_device_request_t req; 358 359 USBHIST_FUNC(); USBHIST_CALLED(usbdebug); 360 361 DPRINTFN(4, "len=%d", len, 0, 0, 0); 362 if (ifd == NULL) 363 return USBD_IOERROR; 364 usbd_interface2device_handle(iface, &dev); 365 req.bmRequestType = UT_READ_CLASS_INTERFACE; 366 req.bRequest = UR_GET_REPORT; 367 USETW2(req.wValue, type, id); 368 USETW(req.wIndex, ifd->bInterfaceNumber); 369 USETW(req.wLength, len); 370 return usbd_do_request(dev, &req, data); 371 } 372 373 usbd_status 374 usbd_set_idle(struct usbd_interface *iface, int duration, int id) 375 { 376 usb_interface_descriptor_t *ifd = usbd_get_interface_descriptor(iface); 377 struct usbd_device *dev; 378 usb_device_request_t req; 379 380 USBHIST_FUNC(); USBHIST_CALLED(usbdebug); 381 382 DPRINTFN(4, "duration %d id %d", duration, id, 0, 0); 383 if (ifd == NULL) 384 return USBD_IOERROR; 385 usbd_interface2device_handle(iface, &dev); 386 req.bmRequestType = UT_WRITE_CLASS_INTERFACE; 387 req.bRequest = UR_SET_IDLE; 388 USETW2(req.wValue, duration, id); 389 USETW(req.wIndex, ifd->bInterfaceNumber); 390 USETW(req.wLength, 0); 391 return usbd_do_request(dev, &req, 0); 392 } 393 394 usbd_status 395 usbd_get_report_descriptor(struct usbd_device *dev, int ifcno, 396 int size, void *d) 397 { 398 usb_device_request_t req; 399 400 req.bmRequestType = UT_READ_INTERFACE; 401 req.bRequest = UR_GET_DESCRIPTOR; 402 USETW2(req.wValue, UDESC_REPORT, 0); /* report id should be 0 */ 403 USETW(req.wIndex, ifcno); 404 USETW(req.wLength, size); 405 return usbd_do_request(dev, &req, d); 406 } 407 408 usb_hid_descriptor_t * 409 usbd_get_hid_descriptor(struct usbd_interface *ifc) 410 { 411 usb_interface_descriptor_t *idesc = usbd_get_interface_descriptor(ifc); 412 struct usbd_device *dev; 413 usb_config_descriptor_t *cdesc; 414 usb_hid_descriptor_t *hd; 415 char *p, *end; 416 417 if (idesc == NULL) 418 return NULL; 419 usbd_interface2device_handle(ifc, &dev); 420 cdesc = usbd_get_config_descriptor(dev); 421 422 p = (char *)idesc + idesc->bLength; 423 end = (char *)cdesc + UGETW(cdesc->wTotalLength); 424 425 for (; p < end; p += hd->bLength) { 426 hd = (usb_hid_descriptor_t *)p; 427 if (p + hd->bLength <= end && hd->bDescriptorType == UDESC_HID) 428 return hd; 429 if (hd->bDescriptorType == UDESC_INTERFACE) 430 break; 431 } 432 return NULL; 433 } 434 435 usbd_status 436 usbd_read_report_desc(struct usbd_interface *ifc, void **descp, int *sizep) 437 { 438 usb_interface_descriptor_t *id; 439 usb_hid_descriptor_t *hid; 440 struct usbd_device *dev; 441 usbd_status err; 442 443 usbd_interface2device_handle(ifc, &dev); 444 id = usbd_get_interface_descriptor(ifc); 445 if (id == NULL) 446 return USBD_INVAL; 447 hid = usbd_get_hid_descriptor(ifc); 448 if (hid == NULL) 449 return USBD_IOERROR; 450 *sizep = UGETW(hid->descrs[0].wDescriptorLength); 451 *descp = kmem_alloc(*sizep, KM_SLEEP); 452 if (*descp == NULL) 453 return USBD_NOMEM; 454 err = usbd_get_report_descriptor(dev, id->bInterfaceNumber, 455 *sizep, *descp); 456 if (err) { 457 kmem_free(*descp, *sizep); 458 *descp = NULL; 459 return err; 460 } 461 return USBD_NORMAL_COMPLETION; 462 } 463 464 usbd_status 465 usbd_get_config(struct usbd_device *dev, uint8_t *conf) 466 { 467 usb_device_request_t req; 468 469 req.bmRequestType = UT_READ_DEVICE; 470 req.bRequest = UR_GET_CONFIG; 471 USETW(req.wValue, 0); 472 USETW(req.wIndex, 0); 473 USETW(req.wLength, 1); 474 return usbd_do_request(dev, &req, conf); 475 } 476 477 usbd_status 478 usbd_bulk_transfer(struct usbd_xfer *xfer, struct usbd_pipe *pipe, 479 uint16_t flags, uint32_t timeout, void *buf, 480 uint32_t *size) 481 { 482 usbd_status err; 483 484 USBHIST_FUNC(); USBHIST_CALLED(usbdebug); 485 486 usbd_setup_xfer(xfer, pipe, 0, buf, *size, flags, timeout, NULL); 487 DPRINTFN(1, "start transfer %d bytes", *size, 0, 0, 0); 488 err = usbd_sync_transfer_sig(xfer); 489 490 usbd_get_xfer_status(xfer, NULL, NULL, size, NULL); 491 DPRINTFN(1, "transferred %d", *size, 0, 0, 0); 492 if (err) { 493 usbd_clear_endpoint_stall(pipe); 494 } 495 USBHIST_LOG(usbdebug, "<- done xfer %p err %d", xfer, err, 0, 0); 496 497 return err; 498 } 499 500 usbd_status 501 usbd_intr_transfer(struct usbd_xfer *xfer, struct usbd_pipe *pipe, 502 uint16_t flags, uint32_t timeout, void *buf, 503 uint32_t *size) 504 { 505 usbd_status err; 506 507 USBHIST_FUNC(); USBHIST_CALLED(usbdebug); 508 509 usbd_setup_xfer(xfer, pipe, 0, buf, *size, flags, timeout, NULL); 510 511 DPRINTFN(1, "start transfer %d bytes", *size, 0, 0, 0); 512 err = usbd_sync_transfer_sig(xfer); 513 514 usbd_get_xfer_status(xfer, NULL, NULL, size, NULL); 515 516 DPRINTFN(1, "transferred %d", *size, 0, 0, 0); 517 if (err) { 518 usbd_clear_endpoint_stall(pipe); 519 } 520 USBHIST_LOG(usbdebug, "<- done xfer %p err %d", xfer, err, 0, 0); 521 522 return err; 523 } 524 525 void 526 usb_detach_wait(device_t dv, kcondvar_t *cv, kmutex_t *lock) 527 { 528 USBHIST_FUNC(); USBHIST_CALLED(usbdebug); 529 530 DPRINTFN(1, "waiting for dv %p", dv, 0, 0, 0); 531 if (cv_timedwait(cv, lock, hz * 60)) // dv, PZERO, "usbdet", hz * 60 532 printf("usb_detach_wait: %s didn't detach\n", 533 device_xname(dv)); 534 DPRINTFN(1, "done", 0, 0, 0, 0); 535 } 536 537 void 538 usb_detach_broadcast(device_t dv, kcondvar_t *cv) 539 { 540 USBHIST_FUNC(); USBHIST_CALLED(usbdebug); 541 542 DPRINTFN(1, "for dv %p", dv, 0, 0, 0); 543 cv_broadcast(cv); 544 } 545 546 void 547 usb_detach_waitold(device_t dv) 548 { 549 USBHIST_FUNC(); USBHIST_CALLED(usbdebug); 550 551 DPRINTFN(1, "waiting for dv %p", dv, 0, 0, 0); 552 if (tsleep(dv, PZERO, "usbdet", hz * 60)) /* XXXSMP ok */ 553 printf("usb_detach_waitold: %s didn't detach\n", 554 device_xname(dv)); 555 DPRINTFN(1, "done", 0, 0, 0, 0); 556 } 557 558 void 559 usb_detach_wakeupold(device_t dv) 560 { 561 USBHIST_FUNC(); USBHIST_CALLED(usbdebug); 562 563 DPRINTFN(1, "for dv %p", dv, 0, 0, 0); 564 wakeup(dv); /* XXXSMP ok */ 565 } 566 567 const usb_cdc_descriptor_t * 568 usb_find_desc(struct usbd_device *dev, int type, int subtype) 569 { 570 usbd_desc_iter_t iter; 571 const usb_cdc_descriptor_t *desc; 572 573 usb_desc_iter_init(dev, &iter); 574 for (;;) { 575 desc = (const usb_cdc_descriptor_t *)usb_desc_iter_next(&iter); 576 if (!desc || (desc->bDescriptorType == type && 577 (subtype == USBD_CDCSUBTYPE_ANY || 578 subtype == desc->bDescriptorSubtype))) 579 break; 580 } 581 return desc; 582 } 583 584 /* same as usb_find_desc(), but searches only in the specified interface. */ 585 const usb_cdc_descriptor_t * 586 usb_find_desc_if(struct usbd_device *dev, int type, int subtype, 587 usb_interface_descriptor_t *id) 588 { 589 usbd_desc_iter_t iter; 590 const usb_cdc_descriptor_t *desc; 591 592 if (id == NULL) 593 return usb_find_desc(dev, type, subtype); 594 595 usb_desc_iter_init(dev, &iter); 596 597 iter.cur = (void *)id; /* start from the interface desc */ 598 usb_desc_iter_next(&iter); /* and skip it */ 599 600 while ((desc = (const usb_cdc_descriptor_t *)usb_desc_iter_next(&iter)) 601 != NULL) { 602 if (desc->bDescriptorType == UDESC_INTERFACE) { 603 /* we ran into the next interface --- not found */ 604 return NULL; 605 } 606 if (desc->bDescriptorType == type && 607 (subtype == USBD_CDCSUBTYPE_ANY || 608 subtype == desc->bDescriptorSubtype)) 609 break; 610 } 611 return desc; 612 } 613
Indexes created Sun Sep 28 16:09:52 GMT 2025