uhidev.c revision 1.27.2.5
1 /* $NetBSD: uhidev.c,v 1.27.2.5 2007/12/07 17:31:36 yamt Exp $ */ 2 3 /* 4 * Copyright (c) 2001 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. 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 * 3. All advertising materials mentioning features or use of this software 20 * must display the following acknowledgement: 21 * This product includes software developed by the NetBSD 22 * Foundation, Inc. and its contributors. 23 * 4. Neither the name of The NetBSD Foundation nor the names of its 24 * contributors may be used to endorse or promote products derived 25 * from this software without specific prior written permission. 26 * 27 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 28 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 29 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 30 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 31 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 32 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 33 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 34 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 35 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 36 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 37 * POSSIBILITY OF SUCH DAMAGE. 38 */ 39 40 /* 41 * HID spec: http://www.usb.org/developers/devclass_docs/HID1_11.pdf 42 */ 43 44 #include <sys/cdefs.h> 45 __KERNEL_RCSID(0, "$NetBSD: uhidev.c,v 1.27.2.5 2007/12/07 17:31:36 yamt Exp $"); 46 47 #include <sys/param.h> 48 #include <sys/systm.h> 49 #include <sys/kernel.h> 50 #include <sys/malloc.h> 51 #include <sys/signalvar.h> 52 #include <sys/device.h> 53 #include <sys/ioctl.h> 54 #include <sys/conf.h> 55 56 #include <dev/usb/usb.h> 57 #include <dev/usb/usbhid.h> 58 59 #include <dev/usb/usbdevs.h> 60 #include <dev/usb/usbdi.h> 61 #include <dev/usb/usbdi_util.h> 62 #include <dev/usb/hid.h> 63 #include <dev/usb/usb_quirks.h> 64 65 #include <dev/usb/uhidev.h> 66 67 /* Report descriptor for broken Wacom Graphire */ 68 #include <dev/usb/ugraphire_rdesc.h> 69 70 #include "locators.h" 71 72 #ifdef UHIDEV_DEBUG 73 #define DPRINTF(x) if (uhidevdebug) logprintf x 74 #define DPRINTFN(n,x) if (uhidevdebug>(n)) logprintf x 75 int uhidevdebug = 0; 76 #else 77 #define DPRINTF(x) 78 #define DPRINTFN(n,x) 79 #endif 80 81 Static void uhidev_intr(usbd_xfer_handle, usbd_private_handle, usbd_status); 82 83 Static int uhidev_maxrepid(void *, int); 84 Static int uhidevprint(void *, const char *); 85 86 USB_DECLARE_DRIVER(uhidev); 87 88 USB_MATCH(uhidev) 89 { 90 USB_IFMATCH_START(uhidev, uaa); 91 92 if (uaa->class != UICLASS_HID) 93 return (UMATCH_NONE); 94 if (usbd_get_quirks(uaa->device)->uq_flags & UQ_HID_IGNORE) 95 return (UMATCH_NONE); 96 return (UMATCH_IFACECLASS_GENERIC); 97 } 98 99 USB_ATTACH(uhidev) 100 { 101 USB_IFATTACH_START(uhidev, sc, uaa); 102 usbd_interface_handle iface = uaa->iface; 103 usb_interface_descriptor_t *id; 104 usb_endpoint_descriptor_t *ed; 105 struct uhidev_attach_arg uha; 106 struct uhidev *dev; 107 int size, nrepid, repid, repsz; 108 int *repsizes; 109 int i; 110 void *desc; 111 const void *descptr; 112 usbd_status err; 113 char *devinfop; 114 int locs[UHIDBUSCF_NLOCS]; 115 116 sc->sc_udev = uaa->device; 117 sc->sc_iface = iface; 118 id = usbd_get_interface_descriptor(iface); 119 120 devinfop = usbd_devinfo_alloc(uaa->device, 0); 121 USB_ATTACH_SETUP; 122 aprint_normal("%s: %s, iclass %d/%d\n", USBDEVNAME(sc->sc_dev), 123 devinfop, id->bInterfaceClass, id->bInterfaceSubClass); 124 usbd_devinfo_free(devinfop); 125 126 (void)usbd_set_idle(iface, 0, 0); 127 #if 0 128 129 qflags = usbd_get_quirks(sc->sc_udev)->uq_flags; 130 if ((qflags & UQ_NO_SET_PROTO) == 0 && 131 id->bInterfaceSubClass != UISUBCLASS_BOOT) 132 (void)usbd_set_protocol(iface, 1); 133 #endif 134 135 sc->sc_iep_addr = sc->sc_oep_addr = -1; 136 for (i = 0; i < id->bNumEndpoints; i++) { 137 ed = usbd_interface2endpoint_descriptor(iface, i); 138 if (ed == NULL) { 139 aprint_error("%s: could not read endpoint descriptor\n", 140 USBDEVNAME(sc->sc_dev)); 141 sc->sc_dying = 1; 142 USB_ATTACH_ERROR_RETURN; 143 } 144 145 DPRINTFN(10,("uhidev_attach: bLength=%d bDescriptorType=%d " 146 "bEndpointAddress=%d-%s bmAttributes=%d wMaxPacketSize=%d" 147 " bInterval=%d\n", 148 ed->bLength, ed->bDescriptorType, 149 ed->bEndpointAddress & UE_ADDR, 150 UE_GET_DIR(ed->bEndpointAddress)==UE_DIR_IN? "in" : "out", 151 ed->bmAttributes & UE_XFERTYPE, 152 UGETW(ed->wMaxPacketSize), ed->bInterval)); 153 154 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 155 (ed->bmAttributes & UE_XFERTYPE) == UE_INTERRUPT) { 156 sc->sc_iep_addr = ed->bEndpointAddress; 157 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT && 158 (ed->bmAttributes & UE_XFERTYPE) == UE_INTERRUPT) { 159 sc->sc_oep_addr = ed->bEndpointAddress; 160 } else { 161 aprint_verbose("%s: endpoint %d: ignored\n", 162 USBDEVNAME(sc->sc_dev), i); 163 } 164 } 165 166 /* 167 * Check that we found an input interrupt endpoint. The output interrupt 168 * endpoint is optional 169 */ 170 if (sc->sc_iep_addr == -1) { 171 aprint_error("%s: no input interrupt endpoint\n", 172 USBDEVNAME(sc->sc_dev)); 173 sc->sc_dying = 1; 174 USB_ATTACH_ERROR_RETURN; 175 } 176 177 /* XXX need to extend this */ 178 descptr = NULL; 179 if (uaa->vendor == USB_VENDOR_WACOM) { 180 static uByte reportbuf[] = {2, 2, 2}; 181 182 /* The report descriptor for the Wacom Graphire is broken. */ 183 switch (uaa->product) { 184 case USB_PRODUCT_WACOM_GRAPHIRE: 185 size = sizeof uhid_graphire_report_descr; 186 descptr = uhid_graphire_report_descr; 187 break; 188 189 case USB_PRODUCT_WACOM_GRAPHIRE3_4X5: 190 case USB_PRODUCT_WACOM_GRAPHIRE3_6X8: 191 case USB_PRODUCT_WACOM_GRAPHIRE4_4X5: /* The 6x8 too? */ 192 /* 193 * The Graphire3 needs 0x0202 to be written to 194 * feature report ID 2 before it'll start 195 * returning digitizer data. 196 */ 197 usbd_set_report(uaa->iface, UHID_FEATURE_REPORT, 2, 198 &reportbuf, sizeof reportbuf); 199 200 size = sizeof uhid_graphire3_4x5_report_descr; 201 descptr = uhid_graphire3_4x5_report_descr; 202 break; 203 default: 204 /* Keep descriptor */ 205 break; 206 } 207 } 208 209 if (descptr) { 210 desc = malloc(size, M_USBDEV, M_NOWAIT); 211 if (desc == NULL) 212 err = USBD_NOMEM; 213 else { 214 err = USBD_NORMAL_COMPLETION; 215 memcpy(desc, descptr, size); 216 } 217 } else { 218 desc = NULL; 219 err = usbd_read_report_desc(uaa->iface, &desc, &size, 220 M_USBDEV); 221 } 222 if (err) { 223 aprint_error("%s: no report descriptor\n", 224 USBDEVNAME(sc->sc_dev)); 225 sc->sc_dying = 1; 226 USB_ATTACH_ERROR_RETURN; 227 } 228 229 if (uaa->vendor == USB_VENDOR_HOSIDEN && 230 uaa->product == USB_PRODUCT_HOSIDEN_PPP) { 231 static uByte reportbuf[] = { 1 }; 232 /* 233 * This device was sold by Konami with its ParaParaParadise 234 * game for PlayStation2. It needs to be "turned on" 235 * before it will send any reports. 236 */ 237 238 usbd_set_report(uaa->iface, UHID_FEATURE_REPORT, 0, 239 &reportbuf, sizeof reportbuf); 240 } 241 242 sc->sc_repdesc = desc; 243 sc->sc_repdesc_size = size; 244 245 uha.uaa = uaa; 246 nrepid = uhidev_maxrepid(desc, size); 247 if (nrepid < 0) 248 USB_ATTACH_SUCCESS_RETURN; 249 if (nrepid > 0) 250 aprint_normal("%s: %d report ids\n", 251 USBDEVNAME(sc->sc_dev), nrepid); 252 nrepid++; 253 repsizes = malloc(nrepid * sizeof(*repsizes), M_TEMP, M_NOWAIT); 254 if (repsizes == NULL) 255 goto nomem; 256 sc->sc_subdevs = malloc(nrepid * sizeof(device_ptr_t), 257 M_USBDEV, M_NOWAIT | M_ZERO); 258 if (sc->sc_subdevs == NULL) { 259 free(repsizes, M_TEMP); 260 nomem: 261 aprint_error("%s: no memory\n", USBDEVNAME(sc->sc_dev)); 262 USB_ATTACH_ERROR_RETURN; 263 } 264 sc->sc_nrepid = nrepid; 265 sc->sc_isize = 0; 266 267 usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev, 268 USBDEV(sc->sc_dev)); 269 270 for (repid = 0; repid < nrepid; repid++) { 271 repsz = hid_report_size(desc, size, hid_input, repid); 272 DPRINTF(("uhidev_match: repid=%d, repsz=%d\n", repid, repsz)); 273 repsizes[repid] = repsz; 274 if (repsz > 0) { 275 if (repsz > sc->sc_isize) 276 sc->sc_isize = repsz; 277 } 278 } 279 sc->sc_isize += nrepid != 1; /* space for report ID */ 280 DPRINTF(("uhidev_attach: isize=%d\n", sc->sc_isize)); 281 282 uha.parent = sc; 283 for (repid = 0; repid < nrepid; repid++) { 284 DPRINTF(("uhidev_match: try repid=%d\n", repid)); 285 if (hid_report_size(desc, size, hid_input, repid) == 0 && 286 hid_report_size(desc, size, hid_output, repid) == 0 && 287 hid_report_size(desc, size, hid_feature, repid) == 0) { 288 ; /* already NULL in sc->sc_subdevs[repid] */ 289 } else { 290 uha.reportid = repid; 291 locs[UHIDBUSCF_REPORTID] = repid; 292 293 dev = (struct uhidev *)config_found_sm_loc(self, 294 "uhidbus", locs, &uha, 295 uhidevprint, config_stdsubmatch); 296 sc->sc_subdevs[repid] = dev; 297 if (dev != NULL) { 298 dev->sc_in_rep_size = repsizes[repid]; 299 #ifdef DIAGNOSTIC 300 DPRINTF(("uhidev_match: repid=%d dev=%p\n", 301 repid, dev)); 302 if (dev->sc_intr == NULL) { 303 free(repsizes, M_TEMP); 304 printf("%s: sc_intr == NULL\n", 305 USBDEVNAME(sc->sc_dev)); 306 USB_ATTACH_ERROR_RETURN; 307 } 308 #endif 309 #if NRND > 0 310 rnd_attach_source(&dev->rnd_source, 311 USBDEVNAME(dev->sc_dev), 312 RND_TYPE_TTY, 0); 313 #endif 314 } 315 } 316 } 317 free(repsizes, M_TEMP); 318 319 USB_ATTACH_SUCCESS_RETURN; 320 } 321 322 int 323 uhidev_maxrepid(void *buf, int len) 324 { 325 struct hid_data *d; 326 struct hid_item h; 327 int maxid; 328 329 maxid = -1; 330 h.report_ID = 0; 331 for (d = hid_start_parse(buf, len, hid_none); hid_get_item(d, &h); ) 332 if (h.report_ID > maxid) 333 maxid = h.report_ID; 334 hid_end_parse(d); 335 return (maxid); 336 } 337 338 int 339 uhidevprint(void *aux, const char *pnp) 340 { 341 struct uhidev_attach_arg *uha = aux; 342 343 if (pnp) 344 aprint_normal("uhid at %s", pnp); 345 if (uha->reportid != 0) 346 aprint_normal(" reportid %d", uha->reportid); 347 return (UNCONF); 348 } 349 350 int 351 uhidev_activate(device_ptr_t self, enum devact act) 352 { 353 struct uhidev_softc *sc = (struct uhidev_softc *)self; 354 int i, rv; 355 356 switch (act) { 357 case DVACT_ACTIVATE: 358 return (EOPNOTSUPP); 359 360 case DVACT_DEACTIVATE: 361 rv = 0; 362 for (i = 0; i < sc->sc_nrepid; i++) 363 if (sc->sc_subdevs[i] != NULL) 364 rv |= config_deactivate( 365 &sc->sc_subdevs[i]->sc_dev); 366 sc->sc_dying = 1; 367 break; 368 default: 369 rv = 0; 370 break; 371 } 372 return (rv); 373 } 374 375 USB_DETACH(uhidev) 376 { 377 USB_DETACH_START(uhidev, sc); 378 int i, rv; 379 380 DPRINTF(("uhidev_detach: sc=%p flags=%d\n", sc, flags)); 381 382 sc->sc_dying = 1; 383 if (sc->sc_ipipe != NULL) 384 usbd_abort_pipe(sc->sc_ipipe); 385 386 if (sc->sc_repdesc != NULL) 387 free(sc->sc_repdesc, M_USBDEV); 388 389 rv = 0; 390 for (i = 0; i < sc->sc_nrepid; i++) { 391 if (sc->sc_subdevs[i] != NULL) { 392 #if NRND > 0 393 rnd_detach_source(&sc->sc_subdevs[i]->rnd_source); 394 #endif 395 rv |= config_detach(&sc->sc_subdevs[i]->sc_dev, flags); 396 sc->sc_subdevs[i] = NULL; 397 } 398 } 399 400 usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev, 401 USBDEV(sc->sc_dev)); 402 403 return (rv); 404 } 405 406 void 407 uhidev_intr(usbd_xfer_handle xfer, usbd_private_handle addr, usbd_status status) 408 { 409 struct uhidev_softc *sc = addr; 410 struct uhidev *scd; 411 u_char *p; 412 u_int rep; 413 u_int32_t cc; 414 415 usbd_get_xfer_status(xfer, NULL, NULL, &cc, NULL); 416 417 #ifdef UHIDEV_DEBUG 418 if (uhidevdebug > 5) { 419 u_int32_t i; 420 421 DPRINTF(("uhidev_intr: status=%d cc=%d\n", status, cc)); 422 DPRINTF(("uhidev_intr: data =")); 423 for (i = 0; i < cc; i++) 424 DPRINTF((" %02x", sc->sc_ibuf[i])); 425 DPRINTF(("\n")); 426 } 427 #endif 428 429 if (status == USBD_CANCELLED) 430 return; 431 432 if (status != USBD_NORMAL_COMPLETION) { 433 DPRINTF(("%s: interrupt status=%d\n", USBDEVNAME(sc->sc_dev), 434 status)); 435 usbd_clear_endpoint_stall_async(sc->sc_ipipe); 436 return; 437 } 438 439 p = sc->sc_ibuf; 440 if (sc->sc_nrepid != 1) 441 rep = *p++, cc--; 442 else 443 rep = 0; 444 if (rep >= sc->sc_nrepid) { 445 printf("uhidev_intr: bad repid %d\n", rep); 446 return; 447 } 448 scd = sc->sc_subdevs[rep]; 449 DPRINTFN(5,("uhidev_intr: rep=%d, scd=%p state=0x%x\n", 450 rep, scd, scd ? scd->sc_state : 0)); 451 if (scd == NULL || !(scd->sc_state & UHIDEV_OPEN)) 452 return; 453 if (scd->sc_in_rep_size != cc) { 454 printf("%s: bad input length %d != %d\n", 455 USBDEVNAME(sc->sc_dev), scd->sc_in_rep_size, cc); 456 return; 457 } 458 #if NRND > 0 459 rnd_add_uint32(&scd->rnd_source, (uintptr_t)(sc->sc_ibuf)); 460 #endif 461 scd->sc_intr(scd, p, cc); 462 } 463 464 void 465 uhidev_get_report_desc(struct uhidev_softc *sc, void **desc, int *size) 466 { 467 *desc = sc->sc_repdesc; 468 *size = sc->sc_repdesc_size; 469 } 470 471 int 472 uhidev_open(struct uhidev *scd) 473 { 474 struct uhidev_softc *sc = scd->sc_parent; 475 usbd_status err; 476 int error; 477 478 DPRINTF(("uhidev_open: open pipe, state=%d refcnt=%d\n", 479 scd->sc_state, sc->sc_refcnt)); 480 481 if (scd->sc_state & UHIDEV_OPEN) 482 return (EBUSY); 483 scd->sc_state |= UHIDEV_OPEN; 484 if (sc->sc_refcnt++) 485 return (0); 486 487 if (sc->sc_isize == 0) 488 return (0); 489 490 sc->sc_ibuf = malloc(sc->sc_isize, M_USBDEV, M_WAITOK); 491 492 /* Set up input interrupt pipe. */ 493 DPRINTF(("uhidev_open: isize=%d, ep=0x%02x\n", sc->sc_isize, 494 sc->sc_iep_addr)); 495 496 err = usbd_open_pipe_intr(sc->sc_iface, sc->sc_iep_addr, 497 USBD_SHORT_XFER_OK, &sc->sc_ipipe, sc, sc->sc_ibuf, 498 sc->sc_isize, uhidev_intr, USBD_DEFAULT_INTERVAL); 499 if (err != USBD_NORMAL_COMPLETION) { 500 DPRINTF(("uhidopen: usbd_open_pipe_intr failed, " 501 "error=%d\n", err)); 502 error = EIO; 503 goto out1; 504 } 505 506 /* 507 * Set up output interrupt pipe if an output interrupt endpoint 508 * exists. 509 */ 510 if (sc->sc_oep_addr != -1) { 511 DPRINTF(("uhidev_open: oep=0x%02x\n", sc->sc_oep_addr)); 512 513 err = usbd_open_pipe(sc->sc_iface, sc->sc_oep_addr, 514 0, &sc->sc_opipe); 515 516 if (err != USBD_NORMAL_COMPLETION) { 517 DPRINTF(("uhidev_open: usbd_open_pipe failed, " 518 "error=%d\n", err)); 519 error = EIO; 520 goto out2; 521 } 522 DPRINTF(("uhidev_open: sc->sc_opipe=%p\n", sc->sc_opipe)); 523 524 sc->sc_oxfer = usbd_alloc_xfer(sc->sc_udev); 525 if (sc->sc_oxfer == NULL) { 526 DPRINTF(("uhidev_open: couldn't allocate an xfer\n")); 527 error = ENOMEM; 528 goto out3; 529 } 530 } 531 532 return (0); 533 out3: 534 /* Abort output pipe */ 535 usbd_close_pipe(sc->sc_opipe); 536 out2: 537 /* Abort input pipe */ 538 usbd_close_pipe(sc->sc_ipipe); 539 out1: 540 DPRINTF(("uhidev_open: failed in someway")); 541 free(sc->sc_ibuf, M_USBDEV); 542 scd->sc_state &= ~UHIDEV_OPEN; 543 sc->sc_refcnt = 0; 544 sc->sc_ipipe = NULL; 545 sc->sc_opipe = NULL; 546 sc->sc_oxfer = NULL; 547 return error; 548 } 549 550 void 551 uhidev_close(struct uhidev *scd) 552 { 553 struct uhidev_softc *sc = scd->sc_parent; 554 555 if (!(scd->sc_state & UHIDEV_OPEN)) 556 return; 557 scd->sc_state &= ~UHIDEV_OPEN; 558 if (--sc->sc_refcnt) 559 return; 560 DPRINTF(("uhidev_close: close pipe\n")); 561 562 if (sc->sc_oxfer != NULL) 563 usbd_free_xfer(sc->sc_oxfer); 564 565 /* Disable interrupts. */ 566 if (sc->sc_opipe != NULL) { 567 usbd_abort_pipe(sc->sc_opipe); 568 usbd_close_pipe(sc->sc_opipe); 569 sc->sc_opipe = NULL; 570 } 571 572 if (sc->sc_ipipe != NULL) { 573 usbd_abort_pipe(sc->sc_ipipe); 574 usbd_close_pipe(sc->sc_ipipe); 575 sc->sc_ipipe = NULL; 576 } 577 578 if (sc->sc_ibuf != NULL) { 579 free(sc->sc_ibuf, M_USBDEV); 580 sc->sc_ibuf = NULL; 581 } 582 } 583 584 usbd_status 585 uhidev_set_report(struct uhidev *scd, int type, void *data, int len) 586 { 587 char *buf; 588 usbd_status retstat; 589 590 if (scd->sc_report_id == 0) 591 return usbd_set_report(scd->sc_parent->sc_iface, type, 592 scd->sc_report_id, data, len); 593 594 buf = malloc(len + 1, M_TEMP, M_WAITOK); 595 buf[0] = scd->sc_report_id; 596 memcpy(buf+1, data, len); 597 598 retstat = usbd_set_report(scd->sc_parent->sc_iface, type, 599 scd->sc_report_id, buf, len + 1); 600 601 free(buf, M_TEMP); 602 603 return retstat; 604 } 605 606 void 607 uhidev_set_report_async(struct uhidev *scd, int type, void *data, int len) 608 { 609 /* XXX */ 610 char buf[100]; 611 if (scd->sc_report_id) { 612 buf[0] = scd->sc_report_id; 613 memcpy(buf+1, data, len); 614 len++; 615 data = buf; 616 } 617 618 usbd_set_report_async(scd->sc_parent->sc_iface, type, 619 scd->sc_report_id, data, len); 620 } 621 622 usbd_status 623 uhidev_get_report(struct uhidev *scd, int type, void *data, int len) 624 { 625 return usbd_get_report(scd->sc_parent->sc_iface, type, 626 scd->sc_report_id, data, len); 627 } 628 629 usbd_status 630 uhidev_write(struct uhidev_softc *sc, void *data, int len) 631 { 632 633 DPRINTF(("uhidev_write: data=%p, len=%d\n", data, len)); 634 635 if (sc->sc_opipe == NULL) 636 return USBD_INVAL; 637 638 #ifdef UHIDEV_DEBUG 639 if (uhidevdebug > 50) { 640 641 u_int32_t i; 642 u_int8_t *d = data; 643 644 DPRINTF(("uhidev_write: data =")); 645 for (i = 0; i < len; i++) 646 DPRINTF((" %02x", d[i])); 647 DPRINTF(("\n")); 648 } 649 #endif 650 return usbd_intr_transfer(sc->sc_oxfer, sc->sc_opipe, 0, 651 USBD_NO_TIMEOUT, data, &len, "uhidevwi"); 652 } 653
Indexes created Mon Sep 29 03:10:08 GMT 2025