uhidev.c revision 1.25
1 /* $NetBSD: uhidev.c,v 1.25 2005/05/08 06:19:10 skrll 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 1.25 2005/05/08 06:19:10 skrll 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 *buf, int len); 84 Static int uhidevprint(void *aux, const char *pnp); 85 Static int uhidevsubmatch(struct device *parent, struct cfdata *cf, 86 const locdesc_t *, void *aux); 87 88 USB_DECLARE_DRIVER(uhidev); 89 90 USB_MATCH(uhidev) 91 { 92 USB_MATCH_START(uhidev, uaa); 93 usb_interface_descriptor_t *id; 94 95 if (uaa->iface == NULL) 96 return (UMATCH_NONE); 97 id = usbd_get_interface_descriptor(uaa->iface); 98 if (id == NULL || id->bInterfaceClass != UICLASS_HID) 99 return (UMATCH_NONE); 100 if (uaa->matchlvl) 101 return (uaa->matchlvl); 102 return (UMATCH_IFACECLASS_GENERIC); 103 } 104 105 USB_ATTACH(uhidev) 106 { 107 USB_ATTACH_START(uhidev, sc, uaa); 108 usbd_interface_handle iface = uaa->iface; 109 usb_interface_descriptor_t *id; 110 usb_endpoint_descriptor_t *ed; 111 struct uhidev_attach_arg uha; 112 struct uhidev *dev; 113 int size, nrepid, repid, repsz; 114 int repsizes[256]; 115 int i; 116 void *desc; 117 const void *descptr; 118 usbd_status err; 119 char devinfo[1024]; 120 int help[2]; 121 locdesc_t *ldesc = (void *)help; /* XXX */ 122 123 sc->sc_udev = uaa->device; 124 sc->sc_iface = iface; 125 id = usbd_get_interface_descriptor(iface); 126 usbd_devinfo(uaa->device, 0, devinfo, sizeof(devinfo)); 127 USB_ATTACH_SETUP; 128 printf("%s: %s, iclass %d/%d\n", USBDEVNAME(sc->sc_dev), 129 devinfo, id->bInterfaceClass, id->bInterfaceSubClass); 130 131 (void)usbd_set_idle(iface, 0, 0); 132 #if 0 133 134 qflags = usbd_get_quirks(sc->sc_udev)->uq_flags; 135 if ((qflags & UQ_NO_SET_PROTO) == 0 && 136 id->bInterfaceSubClass != UISUBCLASS_BOOT) 137 (void)usbd_set_protocol(iface, 1); 138 #endif 139 140 sc->sc_iep_addr = sc->sc_oep_addr = -1; 141 for (i = 0; i < id->bNumEndpoints; i++) { 142 ed = usbd_interface2endpoint_descriptor(iface, i); 143 if (ed == NULL) { 144 printf("%s: could not read endpoint descriptor\n", 145 USBDEVNAME(sc->sc_dev)); 146 sc->sc_dying = 1; 147 USB_ATTACH_ERROR_RETURN; 148 } 149 150 DPRINTFN(10,("uhidev_attach: bLength=%d bDescriptorType=%d " 151 "bEndpointAddress=%d-%s bmAttributes=%d wMaxPacketSize=%d" 152 " bInterval=%d\n", 153 ed->bLength, ed->bDescriptorType, 154 ed->bEndpointAddress & UE_ADDR, 155 UE_GET_DIR(ed->bEndpointAddress)==UE_DIR_IN? "in" : "out", 156 ed->bmAttributes & UE_XFERTYPE, 157 UGETW(ed->wMaxPacketSize), ed->bInterval)); 158 159 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 160 (ed->bmAttributes & UE_XFERTYPE) == UE_INTERRUPT) { 161 sc->sc_iep_addr = ed->bEndpointAddress; 162 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT && 163 (ed->bmAttributes & UE_XFERTYPE) == UE_INTERRUPT) { 164 sc->sc_oep_addr = ed->bEndpointAddress; 165 } else { 166 printf("%s: unexpected endpoint\n", USBDEVNAME(sc->sc_dev)); 167 sc->sc_dying = 1; 168 USB_ATTACH_ERROR_RETURN; 169 } 170 } 171 172 /* 173 * Check that we found an input interrupt endpoint. The output interrupt 174 * endpoint is optional 175 */ 176 if (sc->sc_iep_addr == -1) { 177 printf("%s: no input interrupt endpoint\n", USBDEVNAME(sc->sc_dev)); 178 sc->sc_dying = 1; 179 USB_ATTACH_ERROR_RETURN; 180 } 181 182 /* XXX need to extend this */ 183 descptr = NULL; 184 if (uaa->vendor == USB_VENDOR_WACOM) { 185 static uByte reportbuf[] = {2, 2, 2}; 186 187 /* The report descriptor for the Wacom Graphire is broken. */ 188 switch (uaa->product) { 189 case USB_PRODUCT_WACOM_GRAPHIRE: 190 size = sizeof uhid_graphire_report_descr; 191 descptr = uhid_graphire_report_descr; 192 break; 193 194 case USB_PRODUCT_WACOM_GRAPHIRE3_4X5: /* The 6x8 too? */ 195 /* 196 * The Graphire3 needs 0x0202 to be written to 197 * feature report ID 2 before it'll start 198 * returning digitizer data. 199 */ 200 usbd_set_report(uaa->iface, UHID_FEATURE_REPORT, 2, 201 &reportbuf, sizeof reportbuf); 202 203 size = sizeof uhid_graphire3_4x5_report_descr; 204 descptr = uhid_graphire3_4x5_report_descr; 205 break; 206 default: 207 /* Keep descriptor */ 208 break; 209 } 210 } 211 212 if (descptr) { 213 desc = malloc(size, M_USBDEV, M_NOWAIT); 214 if (desc == NULL) 215 err = USBD_NOMEM; 216 else { 217 err = USBD_NORMAL_COMPLETION; 218 memcpy(desc, descptr, size); 219 } 220 } else { 221 desc = NULL; 222 err = usbd_read_report_desc(uaa->iface, &desc, &size, 223 M_USBDEV); 224 } 225 if (err) { 226 printf("%s: no report descriptor\n", USBDEVNAME(sc->sc_dev)); 227 sc->sc_dying = 1; 228 USB_ATTACH_ERROR_RETURN; 229 } 230 231 sc->sc_repdesc = desc; 232 sc->sc_repdesc_size = size; 233 234 uha.uaa = uaa; 235 nrepid = uhidev_maxrepid(desc, size); 236 if (nrepid < 0) 237 USB_ATTACH_SUCCESS_RETURN; 238 if (nrepid > 0) 239 printf("%s: %d report ids\n", USBDEVNAME(sc->sc_dev), nrepid); 240 nrepid++; 241 sc->sc_subdevs = malloc(nrepid * sizeof(device_ptr_t), 242 M_USBDEV, M_NOWAIT | M_ZERO); 243 if (sc->sc_subdevs == NULL) { 244 printf("%s: no memory\n", USBDEVNAME(sc->sc_dev)); 245 USB_ATTACH_ERROR_RETURN; 246 } 247 sc->sc_nrepid = nrepid; 248 sc->sc_isize = 0; 249 250 usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev, 251 USBDEV(sc->sc_dev)); 252 253 for (repid = 0; repid < nrepid; repid++) { 254 repsz = hid_report_size(desc, size, hid_input, repid); 255 DPRINTF(("uhidev_match: repid=%d, repsz=%d\n", repid, repsz)); 256 repsizes[repid] = repsz; 257 if (repsz > 0) { 258 if (repsz > sc->sc_isize) 259 sc->sc_isize = repsz; 260 } 261 } 262 sc->sc_isize += nrepid != 1; /* space for report ID */ 263 DPRINTF(("uhidev_attach: isize=%d\n", sc->sc_isize)); 264 265 uha.parent = sc; 266 for (repid = 0; repid < nrepid; repid++) { 267 DPRINTF(("uhidev_match: try repid=%d\n", repid)); 268 if (hid_report_size(desc, size, hid_input, repid) == 0 && 269 hid_report_size(desc, size, hid_output, repid) == 0 && 270 hid_report_size(desc, size, hid_feature, repid) == 0) { 271 ; /* already NULL in sc->sc_subdevs[repid] */ 272 } else { 273 uha.reportid = repid; 274 ldesc->len = 1; 275 ldesc->locs[UHIDBUSCF_REPORTID] = repid; 276 277 dev = (struct uhidev *)config_found_sm_loc(self, 278 "uhidbus", ldesc, &uha, 279 uhidevprint, uhidevsubmatch); 280 sc->sc_subdevs[repid] = dev; 281 if (dev != NULL) { 282 dev->sc_in_rep_size = repsizes[repid]; 283 #ifdef DIAGNOSTIC 284 DPRINTF(("uhidev_match: repid=%d dev=%p\n", 285 repid, dev)); 286 if (dev->sc_intr == NULL) { 287 printf("%s: sc_intr == NULL\n", 288 USBDEVNAME(sc->sc_dev)); 289 USB_ATTACH_ERROR_RETURN; 290 } 291 #endif 292 #if NRND > 0 293 rnd_attach_source(&dev->rnd_source, 294 USBDEVNAME(dev->sc_dev), 295 RND_TYPE_TTY, 0); 296 #endif 297 } 298 } 299 } 300 301 USB_ATTACH_SUCCESS_RETURN; 302 } 303 304 int 305 uhidev_maxrepid(void *buf, int len) 306 { 307 struct hid_data *d; 308 struct hid_item h; 309 int maxid; 310 311 maxid = -1; 312 h.report_ID = 0; 313 for (d = hid_start_parse(buf, len, hid_none); hid_get_item(d, &h); ) 314 if (h.report_ID > maxid) 315 maxid = h.report_ID; 316 hid_end_parse(d); 317 return (maxid); 318 } 319 320 int 321 uhidevprint(void *aux, const char *pnp) 322 { 323 struct uhidev_attach_arg *uha = aux; 324 325 if (pnp) 326 aprint_normal("uhid at %s", pnp); 327 if (uha->reportid != 0) 328 aprint_normal(" reportid %d", uha->reportid); 329 return (UNCONF); 330 } 331 332 int 333 uhidevsubmatch(struct device *parent, struct cfdata *cf, 334 const locdesc_t *ldesc, void *aux) 335 { 336 struct uhidev_attach_arg *uha = aux; 337 338 if (cf->cf_loc[UHIDBUSCF_REPORTID] != UHIDBUSCF_REPORTID_DEFAULT && 339 cf->cf_loc[UHIDBUSCF_REPORTID] != ldesc->locs[UHIDBUSCF_REPORTID]) 340 return (0); 341 342 if (cf->cf_loc[UHIDBUSCF_REPORTID] == ldesc->locs[UHIDBUSCF_REPORTID]) 343 uha->matchlvl = UMATCH_VENDOR_PRODUCT; 344 else 345 uha->matchlvl = 0; 346 return (config_match(parent, cf, aux)); 347 } 348 349 int 350 uhidev_activate(device_ptr_t self, enum devact act) 351 { 352 struct uhidev_softc *sc = (struct uhidev_softc *)self; 353 int i, rv; 354 355 switch (act) { 356 case DVACT_ACTIVATE: 357 return (EOPNOTSUPP); 358 359 case DVACT_DEACTIVATE: 360 rv = 0; 361 for (i = 0; i < sc->sc_nrepid; i++) 362 if (sc->sc_subdevs[i] != NULL) 363 rv |= config_deactivate( 364 &sc->sc_subdevs[i]->sc_dev); 365 sc->sc_dying = 1; 366 break; 367 default: 368 rv = 0; 369 break; 370 } 371 return (rv); 372 } 373 374 USB_DETACH(uhidev) 375 { 376 USB_DETACH_START(uhidev, sc); 377 int i, rv; 378 379 DPRINTF(("uhidev_detach: sc=%p flags=%d\n", sc, flags)); 380 381 sc->sc_dying = 1; 382 if (sc->sc_ipipe != NULL) 383 usbd_abort_pipe(sc->sc_ipipe); 384 385 if (sc->sc_repdesc != NULL) 386 free(sc->sc_repdesc, M_USBDEV); 387 388 rv = 0; 389 for (i = 0; i < sc->sc_nrepid; i++) { 390 if (sc->sc_subdevs[i] != NULL) { 391 #if NRND > 0 392 rnd_detach_source(&sc->sc_subdevs[i]->rnd_source); 393 #endif 394 rv |= config_detach(&sc->sc_subdevs[i]->sc_dev, flags); 395 sc->sc_subdevs[i] = NULL; 396 } 397 } 398 399 usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev, 400 USBDEV(sc->sc_dev)); 401 402 return (rv); 403 } 404 405 void 406 uhidev_intr(usbd_xfer_handle xfer, usbd_private_handle addr, usbd_status status) 407 { 408 struct uhidev_softc *sc = addr; 409 struct uhidev *scd; 410 u_char *p; 411 u_int rep; 412 u_int32_t cc; 413 414 usbd_get_xfer_status(xfer, NULL, NULL, &cc, NULL); 415 416 #ifdef UHIDEV_DEBUG 417 if (uhidevdebug > 5) { 418 u_int32_t i; 419 420 DPRINTF(("uhidev_intr: status=%d cc=%d\n", status, cc)); 421 DPRINTF(("uhidev_intr: data =")); 422 for (i = 0; i < cc; i++) 423 DPRINTF((" %02x", sc->sc_ibuf[i])); 424 DPRINTF(("\n")); 425 } 426 #endif 427 428 if (status == USBD_CANCELLED) 429 return; 430 431 if (status != USBD_NORMAL_COMPLETION) { 432 DPRINTF(("%s: interrupt status=%d\n", USBDEVNAME(sc->sc_dev), 433 status)); 434 usbd_clear_endpoint_stall_async(sc->sc_ipipe); 435 return; 436 } 437 438 p = sc->sc_ibuf; 439 if (sc->sc_nrepid != 1) 440 rep = *p++, cc--; 441 else 442 rep = 0; 443 if (rep >= sc->sc_nrepid) { 444 printf("uhidev_intr: bad repid %d\n", rep); 445 return; 446 } 447 scd = sc->sc_subdevs[rep]; 448 DPRINTFN(5,("uhidev_intr: rep=%d, scd=%p state=0x%x\n", 449 rep, scd, scd ? scd->sc_state : 0)); 450 if (scd == NULL || !(scd->sc_state & UHIDEV_OPEN)) 451 return; 452 if (scd->sc_in_rep_size != cc) { 453 printf("%s: bad input length %d != %d\n", 454 USBDEVNAME(sc->sc_dev), scd->sc_in_rep_size, cc); 455 return; 456 } 457 #if NRND > 0 458 rnd_add_uint32(&scd->rnd_source, (uintptr_t)(sc->sc_ibuf)); 459 #endif 460 scd->sc_intr(scd, p, cc); 461 } 462 463 void 464 uhidev_get_report_desc(struct uhidev_softc *sc, void **desc, int *size) 465 { 466 *desc = sc->sc_repdesc; 467 *size = sc->sc_repdesc_size; 468 } 469 470 int 471 uhidev_open(struct uhidev *scd) 472 { 473 struct uhidev_softc *sc = scd->sc_parent; 474 usbd_status err; 475 int error; 476 477 DPRINTF(("uhidev_open: open pipe, state=%d refcnt=%d\n", 478 scd->sc_state, sc->sc_refcnt)); 479 480 if (scd->sc_state & UHIDEV_OPEN) 481 return (EBUSY); 482 scd->sc_state |= UHIDEV_OPEN; 483 if (sc->sc_refcnt++) 484 return (0); 485 486 if (sc->sc_isize == 0) 487 return (0); 488 489 sc->sc_ibuf = malloc(sc->sc_isize, M_USBDEV, M_WAITOK); 490 491 /* Set up input interrupt pipe. */ 492 DPRINTF(("uhidev_open: isize=%d, ep=0x%02x\n", sc->sc_isize, 493 sc->sc_iep_addr)); 494 495 err = usbd_open_pipe_intr(sc->sc_iface, sc->sc_iep_addr, 496 USBD_SHORT_XFER_OK, &sc->sc_ipipe, sc, sc->sc_ibuf, 497 sc->sc_isize, uhidev_intr, USBD_DEFAULT_INTERVAL); 498 if (err != USBD_NORMAL_COMPLETION) { 499 DPRINTF(("uhidopen: usbd_open_pipe_intr failed, " 500 "error=%d\n", err)); 501 error = EIO; 502 goto out1; 503 } 504 505 /* 506 * Set up output interrupt pipe if an output interrupt endpoint 507 * exists. 508 */ 509 if (sc->sc_oep_addr != -1) { 510 DPRINTF(("uhidev_open: oep=0x%02x\n", sc->sc_oep_addr)); 511 512 err = usbd_open_pipe(sc->sc_iface, sc->sc_oep_addr, 513 0, &sc->sc_opipe); 514 515 if (err != USBD_NORMAL_COMPLETION) { 516 DPRINTF(("uhidev_open: usbd_open_pipe failed, " 517 "error=%d\n", err)); 518 error = EIO; 519 goto out2; 520 } 521 DPRINTF(("uhidev_open: sc->sc_opipe=%p\n", sc->sc_opipe)); 522 523 sc->sc_oxfer = usbd_alloc_xfer(sc->sc_udev); 524 if (sc->sc_oxfer == NULL) { 525 DPRINTF(("uhidev_open: couldn't allocate an xfer\n")); 526 error = ENOMEM; 527 goto out3; 528 } 529 } 530 531 return (0); 532 out3: 533 /* Abort output pipe */ 534 usbd_close_pipe(sc->sc_opipe); 535 out2: 536 /* Abort input pipe */ 537 usbd_close_pipe(sc->sc_ipipe); 538 out1: 539 DPRINTF(("uhidev_open: failed in someway")); 540 free(sc->sc_ibuf, M_USBDEV); 541 scd->sc_state &= ~UHIDEV_OPEN; 542 sc->sc_refcnt = 0; 543 sc->sc_ipipe = NULL; 544 sc->sc_opipe = NULL; 545 sc->sc_oxfer = NULL; 546 return error; 547 } 548 549 void 550 uhidev_close(struct uhidev *scd) 551 { 552 struct uhidev_softc *sc = scd->sc_parent; 553 554 if (!(scd->sc_state & UHIDEV_OPEN)) 555 return; 556 scd->sc_state &= ~UHIDEV_OPEN; 557 if (--sc->sc_refcnt) 558 return; 559 DPRINTF(("uhidev_close: close pipe\n")); 560 561 if (sc->sc_oxfer != NULL) 562 usbd_free_xfer(sc->sc_oxfer); 563 564 /* Disable interrupts. */ 565 if (sc->sc_opipe != NULL) { 566 usbd_abort_pipe(sc->sc_opipe); 567 usbd_close_pipe(sc->sc_opipe); 568 sc->sc_opipe = NULL; 569 } 570 571 if (sc->sc_ipipe != NULL) { 572 usbd_abort_pipe(sc->sc_ipipe); 573 usbd_close_pipe(sc->sc_ipipe); 574 sc->sc_ipipe = NULL; 575 } 576 577 if (sc->sc_ibuf != NULL) { 578 free(sc->sc_ibuf, M_USBDEV); 579 sc->sc_ibuf = NULL; 580 } 581 } 582 583 usbd_status 584 uhidev_set_report(struct uhidev *scd, int type, void *data, int len) 585 { 586 char *buf; 587 usbd_status retstat; 588 589 if (scd->sc_report_id == 0) 590 return usbd_set_report(scd->sc_parent->sc_iface, type, 591 scd->sc_report_id, data, len); 592 593 buf = malloc(len + 1, M_TEMP, M_WAITOK); 594 buf[0] = scd->sc_report_id; 595 memcpy(buf+1, data, len); 596 597 retstat = usbd_set_report(scd->sc_parent->sc_iface, type, 598 scd->sc_report_id, buf, len + 1); 599 600 free(buf, M_TEMP); 601 602 return retstat; 603 } 604 605 void 606 uhidev_set_report_async(struct uhidev *scd, int type, void *data, int len) 607 { 608 /* XXX */ 609 char buf[100]; 610 if (scd->sc_report_id) { 611 buf[0] = scd->sc_report_id; 612 memcpy(buf+1, data, len); 613 len++; 614 data = buf; 615 } 616 617 usbd_set_report_async(scd->sc_parent->sc_iface, type, 618 scd->sc_report_id, data, len); 619 } 620 621 usbd_status 622 uhidev_get_report(struct uhidev *scd, int type, void *data, int len) 623 { 624 return usbd_get_report(scd->sc_parent->sc_iface, type, 625 scd->sc_report_id, data, len); 626 } 627 628 usbd_status 629 uhidev_write(struct uhidev_softc *sc, void *data, int len) 630 { 631 632 DPRINTF(("uhidev_write: data=%p, len=%d\n", data, len)); 633 634 if (sc->sc_opipe == NULL) 635 return USBD_INVAL; 636 637 #ifdef UHIDEV_DEBUG 638 if (uhidevdebug > 50) { 639 640 u_int32_t i; 641 u_int8_t *d = data; 642 643 DPRINTF(("uhidev_write: data =")); 644 for (i = 0; i < len; i++) 645 DPRINTF((" %02x", d[i])); 646 DPRINTF(("\n")); 647 } 648 #endif 649 return usbd_intr_transfer(sc->sc_oxfer, sc->sc_opipe, 0, 650 USBD_NO_TIMEOUT, data, &len, "uhidevwi"); 651 } 652
Indexes created Thu Sep 25 06:09:39 GMT 2025