uhidev.c revision 1.31
1 /* $NetBSD: uhidev.c,v 1.31 2005/11/23 08:54:48 augustss 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 1.31 2005/11/23 08:54:48 augustss 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 Static int uhidevsubmatch(struct device *, struct cfdata *, 86 const int *, void *); 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 return (UMATCH_IFACECLASS_GENERIC); 101 } 102 103 USB_ATTACH(uhidev) 104 { 105 USB_ATTACH_START(uhidev, sc, uaa); 106 usbd_interface_handle iface = uaa->iface; 107 usb_interface_descriptor_t *id; 108 usb_endpoint_descriptor_t *ed; 109 struct uhidev_attach_arg uha; 110 struct uhidev *dev; 111 int size, nrepid, repid, repsz; 112 int repsizes[256]; 113 int i; 114 void *desc; 115 const void *descptr; 116 usbd_status err; 117 char *devinfop; 118 int locs[UHIDBUSCF_NLOCS]; 119 120 sc->sc_udev = uaa->device; 121 sc->sc_iface = iface; 122 id = usbd_get_interface_descriptor(iface); 123 124 devinfop = usbd_devinfo_alloc(uaa->device, 0); 125 USB_ATTACH_SETUP; 126 printf("%s: %s, iclass %d/%d\n", USBDEVNAME(sc->sc_dev), 127 devinfop, id->bInterfaceClass, id->bInterfaceSubClass); 128 usbd_devinfo_free(devinfop); 129 130 (void)usbd_set_idle(iface, 0, 0); 131 #if 0 132 133 qflags = usbd_get_quirks(sc->sc_udev)->uq_flags; 134 if ((qflags & UQ_NO_SET_PROTO) == 0 && 135 id->bInterfaceSubClass != UISUBCLASS_BOOT) 136 (void)usbd_set_protocol(iface, 1); 137 #endif 138 139 sc->sc_iep_addr = sc->sc_oep_addr = -1; 140 for (i = 0; i < id->bNumEndpoints; i++) { 141 ed = usbd_interface2endpoint_descriptor(iface, i); 142 if (ed == NULL) { 143 printf("%s: could not read endpoint descriptor\n", 144 USBDEVNAME(sc->sc_dev)); 145 sc->sc_dying = 1; 146 USB_ATTACH_ERROR_RETURN; 147 } 148 149 DPRINTFN(10,("uhidev_attach: bLength=%d bDescriptorType=%d " 150 "bEndpointAddress=%d-%s bmAttributes=%d wMaxPacketSize=%d" 151 " bInterval=%d\n", 152 ed->bLength, ed->bDescriptorType, 153 ed->bEndpointAddress & UE_ADDR, 154 UE_GET_DIR(ed->bEndpointAddress)==UE_DIR_IN? "in" : "out", 155 ed->bmAttributes & UE_XFERTYPE, 156 UGETW(ed->wMaxPacketSize), ed->bInterval)); 157 158 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 159 (ed->bmAttributes & UE_XFERTYPE) == UE_INTERRUPT) { 160 sc->sc_iep_addr = ed->bEndpointAddress; 161 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT && 162 (ed->bmAttributes & UE_XFERTYPE) == UE_INTERRUPT) { 163 sc->sc_oep_addr = ed->bEndpointAddress; 164 } else { 165 printf("%s: endpoint %d: ignored\n", USBDEVNAME(sc->sc_dev), i); 166 } 167 } 168 169 /* 170 * Check that we found an input interrupt endpoint. The output interrupt 171 * endpoint is optional 172 */ 173 if (sc->sc_iep_addr == -1) { 174 printf("%s: no input interrupt endpoint\n", USBDEVNAME(sc->sc_dev)); 175 sc->sc_dying = 1; 176 USB_ATTACH_ERROR_RETURN; 177 } 178 179 /* XXX need to extend this */ 180 descptr = NULL; 181 if (uaa->vendor == USB_VENDOR_WACOM) { 182 static uByte reportbuf[] = {2, 2, 2}; 183 184 /* The report descriptor for the Wacom Graphire is broken. */ 185 switch (uaa->product) { 186 case USB_PRODUCT_WACOM_GRAPHIRE: 187 size = sizeof uhid_graphire_report_descr; 188 descptr = uhid_graphire_report_descr; 189 break; 190 191 case USB_PRODUCT_WACOM_GRAPHIRE3_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 printf("%s: no report descriptor\n", USBDEVNAME(sc->sc_dev)); 224 sc->sc_dying = 1; 225 USB_ATTACH_ERROR_RETURN; 226 } 227 228 if (uaa->vendor == USB_VENDOR_HOSIDEN && 229 uaa->product == USB_PRODUCT_HOSIDEN_PPP) { 230 static uByte reportbuf[] = { 1 }; 231 /* 232 * This device was sold by Konami with its ParaParaParadise 233 * game for PlayStation2. It needs to be "turned on" 234 * before it will send any reports. 235 */ 236 237 usbd_set_report(uaa->iface, UHID_FEATURE_REPORT, 0, 238 &reportbuf, sizeof reportbuf); 239 } 240 241 sc->sc_repdesc = desc; 242 sc->sc_repdesc_size = size; 243 244 uha.uaa = uaa; 245 nrepid = uhidev_maxrepid(desc, size); 246 if (nrepid < 0) 247 USB_ATTACH_SUCCESS_RETURN; 248 if (nrepid > 0) 249 printf("%s: %d report ids\n", USBDEVNAME(sc->sc_dev), nrepid); 250 nrepid++; 251 sc->sc_subdevs = malloc(nrepid * sizeof(device_ptr_t), 252 M_USBDEV, M_NOWAIT | M_ZERO); 253 if (sc->sc_subdevs == NULL) { 254 printf("%s: no memory\n", USBDEVNAME(sc->sc_dev)); 255 USB_ATTACH_ERROR_RETURN; 256 } 257 sc->sc_nrepid = nrepid; 258 sc->sc_isize = 0; 259 260 usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev, 261 USBDEV(sc->sc_dev)); 262 263 for (repid = 0; repid < nrepid; repid++) { 264 repsz = hid_report_size(desc, size, hid_input, repid); 265 DPRINTF(("uhidev_match: repid=%d, repsz=%d\n", repid, repsz)); 266 repsizes[repid] = repsz; 267 if (repsz > 0) { 268 if (repsz > sc->sc_isize) 269 sc->sc_isize = repsz; 270 } 271 } 272 sc->sc_isize += nrepid != 1; /* space for report ID */ 273 DPRINTF(("uhidev_attach: isize=%d\n", sc->sc_isize)); 274 275 uha.parent = sc; 276 for (repid = 0; repid < nrepid; repid++) { 277 DPRINTF(("uhidev_match: try repid=%d\n", repid)); 278 if (hid_report_size(desc, size, hid_input, repid) == 0 && 279 hid_report_size(desc, size, hid_output, repid) == 0 && 280 hid_report_size(desc, size, hid_feature, repid) == 0) { 281 ; /* already NULL in sc->sc_subdevs[repid] */ 282 } else { 283 uha.reportid = repid; 284 locs[UHIDBUSCF_REPORTID] = repid; 285 286 dev = (struct uhidev *)config_found_sm_loc(self, 287 "uhidbus", locs, &uha, 288 uhidevprint, uhidevsubmatch); 289 sc->sc_subdevs[repid] = dev; 290 if (dev != NULL) { 291 dev->sc_in_rep_size = repsizes[repid]; 292 #ifdef DIAGNOSTIC 293 DPRINTF(("uhidev_match: repid=%d dev=%p\n", 294 repid, dev)); 295 if (dev->sc_intr == NULL) { 296 printf("%s: sc_intr == NULL\n", 297 USBDEVNAME(sc->sc_dev)); 298 USB_ATTACH_ERROR_RETURN; 299 } 300 #endif 301 #if NRND > 0 302 rnd_attach_source(&dev->rnd_source, 303 USBDEVNAME(dev->sc_dev), 304 RND_TYPE_TTY, 0); 305 #endif 306 } 307 } 308 } 309 310 USB_ATTACH_SUCCESS_RETURN; 311 } 312 313 int 314 uhidev_maxrepid(void *buf, int len) 315 { 316 struct hid_data *d; 317 struct hid_item h; 318 int maxid; 319 320 maxid = -1; 321 h.report_ID = 0; 322 for (d = hid_start_parse(buf, len, hid_none); hid_get_item(d, &h); ) 323 if (h.report_ID > maxid) 324 maxid = h.report_ID; 325 hid_end_parse(d); 326 return (maxid); 327 } 328 329 int 330 uhidevprint(void *aux, const char *pnp) 331 { 332 struct uhidev_attach_arg *uha = aux; 333 334 if (pnp) 335 aprint_normal("uhid at %s", pnp); 336 if (uha->reportid != 0) 337 aprint_normal(" reportid %d", uha->reportid); 338 return (UNCONF); 339 } 340 341 int 342 uhidevsubmatch(struct device *parent, struct cfdata *cf, 343 const int *locs, void *aux) 344 { 345 if (cf->cf_loc[UHIDBUSCF_REPORTID] != UHIDBUSCF_REPORTID_DEFAULT && 346 cf->cf_loc[UHIDBUSCF_REPORTID] != locs[UHIDBUSCF_REPORTID]) 347 return (0); 348 349 return (config_match(parent, cf, aux)); 350 } 351 352 int 353 uhidev_activate(device_ptr_t self, enum devact act) 354 { 355 struct uhidev_softc *sc = (struct uhidev_softc *)self; 356 int i, rv; 357 358 switch (act) { 359 case DVACT_ACTIVATE: 360 return (EOPNOTSUPP); 361 362 case DVACT_DEACTIVATE: 363 rv = 0; 364 for (i = 0; i < sc->sc_nrepid; i++) 365 if (sc->sc_subdevs[i] != NULL) 366 rv |= config_deactivate( 367 &sc->sc_subdevs[i]->sc_dev); 368 sc->sc_dying = 1; 369 break; 370 default: 371 rv = 0; 372 break; 373 } 374 return (rv); 375 } 376 377 USB_DETACH(uhidev) 378 { 379 USB_DETACH_START(uhidev, sc); 380 int i, rv; 381 382 DPRINTF(("uhidev_detach: sc=%p flags=%d\n", sc, flags)); 383 384 sc->sc_dying = 1; 385 if (sc->sc_ipipe != NULL) 386 usbd_abort_pipe(sc->sc_ipipe); 387 388 if (sc->sc_repdesc != NULL) 389 free(sc->sc_repdesc, M_USBDEV); 390 391 rv = 0; 392 for (i = 0; i < sc->sc_nrepid; i++) { 393 if (sc->sc_subdevs[i] != NULL) { 394 #if NRND > 0 395 rnd_detach_source(&sc->sc_subdevs[i]->rnd_source); 396 #endif 397 rv |= config_detach(&sc->sc_subdevs[i]->sc_dev, flags); 398 sc->sc_subdevs[i] = NULL; 399 } 400 } 401 402 usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev, 403 USBDEV(sc->sc_dev)); 404 405 return (rv); 406 } 407 408 void 409 uhidev_intr(usbd_xfer_handle xfer, usbd_private_handle addr, usbd_status status) 410 { 411 struct uhidev_softc *sc = addr; 412 struct uhidev *scd; 413 u_char *p; 414 u_int rep; 415 u_int32_t cc; 416 417 usbd_get_xfer_status(xfer, NULL, NULL, &cc, NULL); 418 419 #ifdef UHIDEV_DEBUG 420 if (uhidevdebug > 5) { 421 u_int32_t i; 422 423 DPRINTF(("uhidev_intr: status=%d cc=%d\n", status, cc)); 424 DPRINTF(("uhidev_intr: data =")); 425 for (i = 0; i < cc; i++) 426 DPRINTF((" %02x", sc->sc_ibuf[i])); 427 DPRINTF(("\n")); 428 } 429 #endif 430 431 if (status == USBD_CANCELLED) 432 return; 433 434 if (status != USBD_NORMAL_COMPLETION) { 435 DPRINTF(("%s: interrupt status=%d\n", USBDEVNAME(sc->sc_dev), 436 status)); 437 usbd_clear_endpoint_stall_async(sc->sc_ipipe); 438 return; 439 } 440 441 p = sc->sc_ibuf; 442 if (sc->sc_nrepid != 1) 443 rep = *p++, cc--; 444 else 445 rep = 0; 446 if (rep >= sc->sc_nrepid) { 447 printf("uhidev_intr: bad repid %d\n", rep); 448 return; 449 } 450 scd = sc->sc_subdevs[rep]; 451 DPRINTFN(5,("uhidev_intr: rep=%d, scd=%p state=0x%x\n", 452 rep, scd, scd ? scd->sc_state : 0)); 453 if (scd == NULL || !(scd->sc_state & UHIDEV_OPEN)) 454 return; 455 if (scd->sc_in_rep_size != cc) { 456 printf("%s: bad input length %d != %d\n", 457 USBDEVNAME(sc->sc_dev), scd->sc_in_rep_size, cc); 458 return; 459 } 460 #if NRND > 0 461 rnd_add_uint32(&scd->rnd_source, (uintptr_t)(sc->sc_ibuf)); 462 #endif 463 scd->sc_intr(scd, p, cc); 464 } 465 466 void 467 uhidev_get_report_desc(struct uhidev_softc *sc, void **desc, int *size) 468 { 469 *desc = sc->sc_repdesc; 470 *size = sc->sc_repdesc_size; 471 } 472 473 int 474 uhidev_open(struct uhidev *scd) 475 { 476 struct uhidev_softc *sc = scd->sc_parent; 477 usbd_status err; 478 int error; 479 480 DPRINTF(("uhidev_open: open pipe, state=%d refcnt=%d\n", 481 scd->sc_state, sc->sc_refcnt)); 482 483 if (scd->sc_state & UHIDEV_OPEN) 484 return (EBUSY); 485 scd->sc_state |= UHIDEV_OPEN; 486 if (sc->sc_refcnt++) 487 return (0); 488 489 if (sc->sc_isize == 0) 490 return (0); 491 492 sc->sc_ibuf = malloc(sc->sc_isize, M_USBDEV, M_WAITOK); 493 494 /* Set up input interrupt pipe. */ 495 DPRINTF(("uhidev_open: isize=%d, ep=0x%02x\n", sc->sc_isize, 496 sc->sc_iep_addr)); 497 498 err = usbd_open_pipe_intr(sc->sc_iface, sc->sc_iep_addr, 499 USBD_SHORT_XFER_OK, &sc->sc_ipipe, sc, sc->sc_ibuf, 500 sc->sc_isize, uhidev_intr, USBD_DEFAULT_INTERVAL); 501 if (err != USBD_NORMAL_COMPLETION) { 502 DPRINTF(("uhidopen: usbd_open_pipe_intr failed, " 503 "error=%d\n", err)); 504 error = EIO; 505 goto out1; 506 } 507 508 /* 509 * Set up output interrupt pipe if an output interrupt endpoint 510 * exists. 511 */ 512 if (sc->sc_oep_addr != -1) { 513 DPRINTF(("uhidev_open: oep=0x%02x\n", sc->sc_oep_addr)); 514 515 err = usbd_open_pipe(sc->sc_iface, sc->sc_oep_addr, 516 0, &sc->sc_opipe); 517 518 if (err != USBD_NORMAL_COMPLETION) { 519 DPRINTF(("uhidev_open: usbd_open_pipe failed, " 520 "error=%d\n", err)); 521 error = EIO; 522 goto out2; 523 } 524 DPRINTF(("uhidev_open: sc->sc_opipe=%p\n", sc->sc_opipe)); 525 526 sc->sc_oxfer = usbd_alloc_xfer(sc->sc_udev); 527 if (sc->sc_oxfer == NULL) { 528 DPRINTF(("uhidev_open: couldn't allocate an xfer\n")); 529 error = ENOMEM; 530 goto out3; 531 } 532 } 533 534 return (0); 535 out3: 536 /* Abort output pipe */ 537 usbd_close_pipe(sc->sc_opipe); 538 out2: 539 /* Abort input pipe */ 540 usbd_close_pipe(sc->sc_ipipe); 541 out1: 542 DPRINTF(("uhidev_open: failed in someway")); 543 free(sc->sc_ibuf, M_USBDEV); 544 scd->sc_state &= ~UHIDEV_OPEN; 545 sc->sc_refcnt = 0; 546 sc->sc_ipipe = NULL; 547 sc->sc_opipe = NULL; 548 sc->sc_oxfer = NULL; 549 return error; 550 } 551 552 void 553 uhidev_close(struct uhidev *scd) 554 { 555 struct uhidev_softc *sc = scd->sc_parent; 556 557 if (!(scd->sc_state & UHIDEV_OPEN)) 558 return; 559 scd->sc_state &= ~UHIDEV_OPEN; 560 if (--sc->sc_refcnt) 561 return; 562 DPRINTF(("uhidev_close: close pipe\n")); 563 564 if (sc->sc_oxfer != NULL) 565 usbd_free_xfer(sc->sc_oxfer); 566 567 /* Disable interrupts. */ 568 if (sc->sc_opipe != NULL) { 569 usbd_abort_pipe(sc->sc_opipe); 570 usbd_close_pipe(sc->sc_opipe); 571 sc->sc_opipe = NULL; 572 } 573 574 if (sc->sc_ipipe != NULL) { 575 usbd_abort_pipe(sc->sc_ipipe); 576 usbd_close_pipe(sc->sc_ipipe); 577 sc->sc_ipipe = NULL; 578 } 579 580 if (sc->sc_ibuf != NULL) { 581 free(sc->sc_ibuf, M_USBDEV); 582 sc->sc_ibuf = NULL; 583 } 584 } 585 586 usbd_status 587 uhidev_set_report(struct uhidev *scd, int type, void *data, int len) 588 { 589 char *buf; 590 usbd_status retstat; 591 592 if (scd->sc_report_id == 0) 593 return usbd_set_report(scd->sc_parent->sc_iface, type, 594 scd->sc_report_id, data, len); 595 596 buf = malloc(len + 1, M_TEMP, M_WAITOK); 597 buf[0] = scd->sc_report_id; 598 memcpy(buf+1, data, len); 599 600 retstat = usbd_set_report(scd->sc_parent->sc_iface, type, 601 scd->sc_report_id, buf, len + 1); 602 603 free(buf, M_TEMP); 604 605 return retstat; 606 } 607 608 void 609 uhidev_set_report_async(struct uhidev *scd, int type, void *data, int len) 610 { 611 /* XXX */ 612 char buf[100]; 613 if (scd->sc_report_id) { 614 buf[0] = scd->sc_report_id; 615 memcpy(buf+1, data, len); 616 len++; 617 data = buf; 618 } 619 620 usbd_set_report_async(scd->sc_parent->sc_iface, type, 621 scd->sc_report_id, data, len); 622 } 623 624 usbd_status 625 uhidev_get_report(struct uhidev *scd, int type, void *data, int len) 626 { 627 return usbd_get_report(scd->sc_parent->sc_iface, type, 628 scd->sc_report_id, data, len); 629 } 630 631 usbd_status 632 uhidev_write(struct uhidev_softc *sc, void *data, int len) 633 { 634 635 DPRINTF(("uhidev_write: data=%p, len=%d\n", data, len)); 636 637 if (sc->sc_opipe == NULL) 638 return USBD_INVAL; 639 640 #ifdef UHIDEV_DEBUG 641 if (uhidevdebug > 50) { 642 643 u_int32_t i; 644 u_int8_t *d = data; 645 646 DPRINTF(("uhidev_write: data =")); 647 for (i = 0; i < len; i++) 648 DPRINTF((" %02x", d[i])); 649 DPRINTF(("\n")); 650 } 651 #endif 652 return usbd_intr_transfer(sc->sc_oxfer, sc->sc_opipe, 0, 653 USBD_NO_TIMEOUT, data, &len, "uhidevwi"); 654 } 655
Indexes created Mon Sep 29 18:09:42 GMT 2025