Home | History | Annotate | Line # | Download | only in usb
u3g.c revision 1.6.4.1
      1 /*	$NetBSD: u3g.c,v 1.6.4.1 2009/07/23 23:32:21 jym Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 2008 AnyWi Technologies
      5  *   Author: Andrea Guzzo <aguzzo (at) anywi.com>
      6  *   * based on uark.c 1.1 2006/08/14 08:30:22 jsg *
      7  *   * parts from ubsa.c 183348 2008-09-25 12:00:56Z phk *
      8  *
      9  * Permission to use, copy, modify, and distribute this software for any
     10  * purpose with or without fee is hereby granted, provided that the above
     11  * copyright notice and this permission notice appear in all copies.
     12  *
     13  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
     14  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
     15  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
     16  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
     17  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
     18  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
     19  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
     20  *
     21  * $FreeBSD$
     22  */
     23 
     24 #include <sys/cdefs.h>
     25 __KERNEL_RCSID(0, "$NetBSD: u3g.c,v 1.6.4.1 2009/07/23 23:32:21 jym Exp $");
     26 
     27 #include <sys/param.h>
     28 #include <sys/systm.h>
     29 #include <sys/kernel.h>
     30 #include <sys/malloc.h>
     31 #include <sys/module.h>
     32 #include <sys/bus.h>
     33 #include <sys/ioccom.h>
     34 #include <sys/fcntl.h>
     35 #include <sys/conf.h>
     36 #include <sys/tty.h>
     37 #include <sys/file.h>
     38 #include <sys/selinfo.h>
     39 
     40 #include <dev/usb/usb.h>
     41 #include <dev/usb/usbdi.h>
     42 #include <dev/usb/usbdivar.h>
     43 #include <dev/usb/usbdi_util.h>
     44 
     45 #include <dev/usb/ucomvar.h>
     46 
     47 #include "usbdevs.h"
     48 
     49 #define U3GBUFSZ        1024
     50 #define U3G_MAXPORTS           4
     51 
     52 struct u3g_softc {
     53 	device_t                    sc_ucom[U3G_MAXPORTS];
     54 	device_t                    sc_dev;
     55 	usbd_device_handle          sc_udev;
     56 	u_char                      sc_msr;
     57 	u_char                      sc_lsr;
     58 	u_char                      numports;
     59 
     60 	usbd_interface_handle       sc_intr_iface;   /* interrupt interface */
     61 #ifdef U3G_DEBUG
     62 	int                         sc_intr_number;  /* interrupt number */
     63 	usbd_pipe_handle            sc_intr_pipe;    /* interrupt pipe */
     64 	u_char                      *sc_intr_buf;    /* interrupt buffer */
     65 #endif
     66 	int                         sc_isize;
     67 	bool                        sc_pseudodev;
     68 };
     69 
     70 struct ucom_methods u3g_methods = {
     71 	NULL,
     72 	NULL,
     73 	NULL,
     74 	NULL,
     75 	NULL,
     76 	NULL,
     77 	NULL,
     78 	NULL,
     79 };
     80 
     81 static const struct usb_devno u3g_devs[] = {
     82 	/* OEM: Option N.V. */
     83 	{ USB_VENDOR_OPTIONNV, USB_PRODUCT_OPTIONNV_QUADPLUSUMTS },
     84 	{ USB_VENDOR_OPTIONNV, USB_PRODUCT_OPTIONNV_HSDPA },
     85 	{ USB_VENDOR_OPTIONNV, USB_PRODUCT_OPTIONNV_GTMAXHSUPA },
     86 	/* OEM: Qualcomm, Inc. */
     87 	{ USB_VENDOR_QUALCOMMINC, USB_PRODUCT_QUALCOMMINC_CDMA_MSM },
     88 	/* OEM: Huawei */
     89 	{ USB_VENDOR_HUAWEI, USB_PRODUCT_HUAWEI_MOBILE },
     90 	{ USB_VENDOR_HUAWEI, USB_PRODUCT_HUAWEI_E220 },
     91 	/* OEM: Novatel */
     92 	{ USB_VENDOR_NOVATEL2, USB_PRODUCT_NOVATEL2_MERLINV620 },
     93 	{ USB_VENDOR_NOVATEL2, USB_PRODUCT_NOVATEL2_ES620 },
     94 	{ USB_VENDOR_NOVATEL2, USB_PRODUCT_NOVATEL2_MC950D },
     95 	{ USB_VENDOR_NOVATEL2, USB_PRODUCT_NOVATEL2_U720 },
     96 	{ USB_VENDOR_NOVATEL2, USB_PRODUCT_NOVATEL2_U727 },
     97 	{ USB_VENDOR_NOVATEL2, USB_PRODUCT_NOVATEL2_MERLINU740 },
     98 	{ USB_VENDOR_NOVATEL2, USB_PRODUCT_NOVATEL2_U740_2 },
     99 	{ USB_VENDOR_NOVATEL2, USB_PRODUCT_NOVATEL2_U870 },
    100 	{ USB_VENDOR_NOVATEL2, USB_PRODUCT_NOVATEL2_MERLINV620 },
    101 	{ USB_VENDOR_NOVATEL2, USB_PRODUCT_NOVATEL2_S720 },
    102 	{ USB_VENDOR_NOVATEL2, USB_PRODUCT_NOVATEL2_V740 },
    103 	{ USB_VENDOR_NOVATEL2, USB_PRODUCT_NOVATEL2_X950D },
    104 	{ USB_VENDOR_NOVATEL2, USB_PRODUCT_NOVATEL2_XU870 },
    105         { USB_VENDOR_DELL, USB_PRODUCT_DELL_W5500 },
    106 #if 0
    107 	{ USB_VENDOR_NOVATEL2, USB_PRODUCT_NOVATEL2_MC950D_DRIVER },
    108 #endif
    109 	/* OEM: Merlin */
    110 	{ USB_VENDOR_MERLIN, USB_PRODUCT_MERLIN_V620 },
    111 
    112 	/* OEM: Sierra Wireless: */
    113 	{ USB_VENDOR_SIERRA, USB_PRODUCT_SIERRA_AIRCARD580 },
    114 	{ USB_VENDOR_SIERRA, USB_PRODUCT_SIERRA_AIRCARD595 },
    115 	{ USB_VENDOR_SIERRA, USB_PRODUCT_SIERRA_AC595U },
    116 	{ USB_VENDOR_SIERRA, USB_PRODUCT_SIERRA_AC597E },
    117 	{ USB_VENDOR_SIERRA, USB_PRODUCT_SIERRA_C597 },
    118 	{ USB_VENDOR_SIERRA, USB_PRODUCT_SIERRA_AC880 },
    119 	{ USB_VENDOR_SIERRA, USB_PRODUCT_SIERRA_AC880E },
    120 	{ USB_VENDOR_SIERRA, USB_PRODUCT_SIERRA_AC880U },
    121 	{ USB_VENDOR_SIERRA, USB_PRODUCT_SIERRA_AC881 },
    122 	{ USB_VENDOR_SIERRA, USB_PRODUCT_SIERRA_AC881E },
    123 	{ USB_VENDOR_SIERRA, USB_PRODUCT_SIERRA_AC881U },
    124 	{ USB_VENDOR_SIERRA, USB_PRODUCT_SIERRA_EM5625 },
    125 	{ USB_VENDOR_SIERRA, USB_PRODUCT_SIERRA_MC5720 },
    126 	{ USB_VENDOR_SIERRA, USB_PRODUCT_SIERRA_MC5720_2 },
    127 	{ USB_VENDOR_SIERRA, USB_PRODUCT_SIERRA_MC5725 },
    128 	{ USB_VENDOR_SIERRA, USB_PRODUCT_SIERRA_MINI5725 },
    129 	{ USB_VENDOR_SIERRA, USB_PRODUCT_SIERRA_AIRCARD875 },
    130 	{ USB_VENDOR_SIERRA, USB_PRODUCT_SIERRA_MC8755 },
    131 	{ USB_VENDOR_SIERRA, USB_PRODUCT_SIERRA_MC8755_2 },
    132 	{ USB_VENDOR_SIERRA, USB_PRODUCT_SIERRA_MC8755_3 },
    133 	{ USB_VENDOR_SIERRA, USB_PRODUCT_SIERRA_MC8765 },
    134 	{ USB_VENDOR_SIERRA, USB_PRODUCT_SIERRA_AC875U },
    135 	{ USB_VENDOR_SIERRA, USB_PRODUCT_SIERRA_MC8775_2 },
    136 	{ USB_VENDOR_SIERRA, USB_PRODUCT_SIERRA_MC8780 },
    137 	{ USB_VENDOR_SIERRA, USB_PRODUCT_SIERRA_MC8781 },
    138 };
    139 
    140 #ifdef U3G_DEBUG
    141 static void
    142 u3g_intr(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status)
    143 {
    144 	struct u3g_softc *sc = (struct u3g_softc *)priv;
    145 	aprint_normal_dev(sc->sc_dev, "INTERRUPT CALLBACK\n");
    146 }
    147 #endif
    148 
    149 static int
    150 u3g_novatel_reinit(struct usb_attach_arg *uaa)
    151 {
    152 	unsigned char cmd[31];
    153 	usbd_interface_handle iface;
    154 	usb_interface_descriptor_t *id;
    155 	usb_endpoint_descriptor_t *ed;
    156 	usbd_pipe_handle pipe;
    157 	usbd_xfer_handle xfer;
    158 	int err, i;
    159 
    160 	memset(cmd, 0, sizeof(cmd));
    161 	/* Byte 0..3: Command Block Wrapper (CBW) signature */
    162 	cmd[0] = 0x55;
    163 	cmd[1] = 0x53;
    164 	cmd[2] = 0x42;
    165 	cmd[3] = 0x43;
    166 	/* 4..7: CBW Tag, has to unique, but only a single transfer used. */
    167 	cmd[4] = 0x01;
    168 	/* 8..11: CBW Transfer Length, no data here */
    169 	/* 12: CBW Flag: output, so 0 */
    170 	/* 13: CBW Lun: 0 */
    171 	/* 14: CBW Length */
    172 	cmd[14] = 0x06;
    173 	/* Rest is the SCSI payload */
    174 	/* 0: SCSI START/STOP opcode */
    175 	cmd[15] = 0x1b;
    176 	/* 1..3 unused */
    177 	/* 4 Load/Eject command */
    178 	cmd[19] = 0x02;
    179 	/* 5: unused */
    180 
    181 
    182 	/* Move the device into the configured state. */
    183 	err = usbd_set_config_index(uaa->device, 0, 0);
    184 	if (err) {
    185 		aprint_error("u3g: failed to set configuration index\n");
    186 		return UMATCH_NONE;
    187 	}
    188 
    189 	err = usbd_device2interface_handle(uaa->device, 0, &iface);
    190 	if (err != 0) {
    191 		aprint_error("u3g: failed to get interface\n");
    192 		return UMATCH_NONE;
    193 	}
    194 
    195 	id = usbd_get_interface_descriptor(iface);
    196 	ed = NULL;
    197 	for (i = 0 ; i < id->bNumEndpoints ; i++) {
    198 		ed = usbd_interface2endpoint_descriptor(iface, i);
    199 		if (ed == NULL)
    200 			continue;
    201 		if (UE_GET_DIR(ed->bEndpointAddress) != UE_DIR_OUT)
    202 			continue;
    203 		if ((ed->bmAttributes & UE_XFERTYPE) == UE_BULK)
    204 			break;
    205 	}
    206 
    207 	if (i == id->bNumEndpoints)
    208 		return UMATCH_NONE;
    209 
    210 	err = usbd_open_pipe(iface, ed->bEndpointAddress, USBD_EXCLUSIVE_USE,
    211 	    &pipe);
    212 	if (err != 0) {
    213 		aprint_error("u3g: failed to open bulk transfer pipe %d\n",
    214 		    ed->bEndpointAddress);
    215 		return UMATCH_NONE;
    216 	}
    217 
    218 	xfer = usbd_alloc_xfer(uaa->device);
    219 	if (xfer != NULL) {
    220 		usbd_setup_xfer(xfer, pipe, NULL, cmd, sizeof(cmd),
    221 		    USBD_SYNCHRONOUS, USBD_DEFAULT_TIMEOUT, NULL);
    222 
    223 		err = usbd_transfer(xfer);
    224 		if (err)
    225 			aprint_error("u3g: transfer failed\n");
    226 		usbd_free_xfer(xfer);
    227 	} else {
    228 		aprint_error("u3g: failed to allocate xfer\n");
    229 		err = USBD_NOMEM;
    230 	}
    231 
    232 	usbd_abort_pipe(pipe);
    233 	usbd_close_pipe(pipe);
    234 
    235 	return (err == USBD_NORMAL_COMPLETION ? UMATCH_HIGHEST : UMATCH_NONE);
    236 }
    237 
    238 static int
    239 u3g_huawei_reinit(usbd_device_handle dev)
    240 {
    241 	/* The Huawei device presents itself as a umass device with Windows
    242 	 * drivers on it. After installation of the driver, it reinits into a
    243 	 * 3G serial device.
    244 	 */
    245 	usb_device_request_t req;
    246 	usb_config_descriptor_t *cdesc;
    247 
    248 	/* Get the config descriptor */
    249 	cdesc = usbd_get_config_descriptor(dev);
    250 	if (cdesc == NULL)
    251 		return (UMATCH_NONE);
    252 
    253 	/* One iface means umass mode, more than 1 (4 usually) means 3G mode */
    254 	if (cdesc->bNumInterface > 1)
    255 		return (UMATCH_VENDOR_PRODUCT);
    256 
    257 	req.bmRequestType = UT_WRITE_DEVICE;
    258 	req.bRequest = UR_SET_FEATURE;
    259 	USETW(req.wValue, UF_DEVICE_REMOTE_WAKEUP);
    260 	USETW(req.wIndex, UHF_PORT_SUSPEND);
    261 	USETW(req.wLength, 0);
    262 
    263 	(void) usbd_do_request(dev, &req, 0);
    264 
    265 
    266 	return (UMATCH_HIGHEST); /* Match to prevent umass from attaching */
    267 }
    268 
    269 static int
    270 u3g_sierra_reinit(usbd_device_handle dev)
    271 {
    272 	/* Some Sierra devices presents themselves as a umass device with
    273 	 * Windows drivers on it. After installation of the driver, it
    274 	 * reinits into a * 3G serial device.
    275 	 */
    276 	usb_device_request_t req;
    277 	usb_config_descriptor_t *cdesc;
    278 
    279 	/* Get the config descriptor */
    280 	cdesc = usbd_get_config_descriptor(dev);
    281 	if (cdesc == NULL)
    282 		return (UMATCH_NONE);
    283 
    284 	req.bmRequestType = UT_VENDOR;
    285 	req.bRequest = UR_SET_INTERFACE;
    286 	USETW(req.wValue, UF_DEVICE_REMOTE_WAKEUP);
    287 	USETW(req.wIndex, UHF_PORT_CONNECTION);
    288 	USETW(req.wLength, 0);
    289 
    290 	(void) usbd_do_request(dev, &req, 0);
    291 
    292 	return (UMATCH_HIGHEST); /* Match to prevent umass from attaching */
    293 }
    294 
    295 static int
    296 u3g_match(device_t parent, cfdata_t match, void *aux)
    297 {
    298 	struct usb_attach_arg *uaa = aux;
    299 
    300 	if (uaa->vendor == USB_VENDOR_HUAWEI)
    301 		return u3g_huawei_reinit(uaa->device);
    302 
    303 	if (uaa->vendor == USB_VENDOR_NOVATEL2 &&
    304 	    uaa->product == USB_PRODUCT_NOVATEL2_MC950D_DRIVER)
    305 		return u3g_novatel_reinit(uaa);
    306 
    307 	if (uaa->vendor == USB_VENDOR_SIERRA &&
    308 	    uaa->product == USB_PRODUCT_SIERRA_INSTALLER)
    309 		return u3g_sierra_reinit(uaa->device);
    310 
    311 	if (usb_lookup(u3g_devs, uaa->vendor, uaa->product))
    312 		return UMATCH_VENDOR_PRODUCT;
    313 
    314 	return UMATCH_NONE;
    315 }
    316 
    317 static void
    318 u3g_attach(device_t parent, device_t self, void *aux)
    319 {
    320 	struct u3g_softc *sc = device_private(self);
    321 	struct usb_attach_arg *uaa = aux;
    322 	usbd_device_handle dev = uaa->device;
    323 	usbd_interface_handle iface;
    324 	usb_interface_descriptor_t *id;
    325 	usb_endpoint_descriptor_t *ed;
    326 	usbd_status error;
    327 	int i, n;
    328 	usb_config_descriptor_t *cdesc;
    329 
    330 	aprint_naive("\n");
    331 	aprint_normal("\n");
    332 
    333 	if (uaa->vendor == USB_VENDOR_NOVATEL2 &&
    334 	    uaa->product == USB_PRODUCT_NOVATEL2_MC950D_DRIVER) {
    335 		/* About to disappear... */
    336 		sc->sc_pseudodev = true;
    337 		return;
    338 	}
    339 
    340 	sc->sc_dev = self;
    341 #ifdef U3G_DEBUG
    342 	sc->sc_intr_number = -1;
    343 	sc->sc_intr_pipe = NULL;
    344 #endif
    345 	/* Move the device into the configured state. */
    346 	error = usbd_set_config_index(dev, 0, 1);
    347 	if (error) {
    348 		aprint_error_dev(self, "failed to set configuration: %s\n",
    349 			      usbd_errstr(error));
    350 		return;
    351 	}
    352 
    353 	/* get the config descriptor */
    354 	cdesc = usbd_get_config_descriptor(dev);
    355 
    356 	if (cdesc == NULL) {
    357 		aprint_error_dev(self, "failed to get configuration descriptor\n");
    358 		return;
    359 	}
    360 
    361 	if (uaa->vendor == USB_VENDOR_HUAWEI && cdesc->bNumInterface > 1) {
    362 		/* About to disappear... */
    363 		sc->sc_pseudodev = true;
    364 		return;
    365 	}
    366 
    367 	if (uaa->vendor == USB_VENDOR_SIERRA &&
    368 	    uaa->product == USB_PRODUCT_SIERRA_INSTALLER) {
    369 		/* About to disappear... */
    370 		sc->sc_pseudodev = true;
    371 		return;
    372 	}
    373 
    374 	sc->sc_udev = dev;
    375 	sc->numports = (cdesc->bNumInterface <= U3G_MAXPORTS)?cdesc->bNumInterface:U3G_MAXPORTS;
    376 	for ( i = 0; i < sc->numports; i++ ) {
    377 		struct ucom_attach_args uca;
    378 
    379 		error = usbd_device2interface_handle(dev, i, &iface);
    380 		if (error) {
    381 			aprint_error_dev(self,
    382 			    "failed to get interface, err=%s\n",
    383 			    usbd_errstr(error));
    384 			return;
    385 		}
    386 		id = usbd_get_interface_descriptor(iface);
    387 
    388 		uca.info = "Generic 3G Serial Device";
    389 		uca.ibufsize = U3GBUFSZ;
    390 		uca.obufsize = U3GBUFSZ;
    391 		uca.ibufsizepad = U3GBUFSZ;
    392 		uca.portno = i;
    393 		uca.opkthdrlen = 0;
    394 		uca.device = dev;
    395 		uca.iface = iface;
    396 		uca.methods = &u3g_methods;
    397 		uca.arg = sc;
    398 
    399 		uca.bulkin = uca.bulkout = -1;
    400 		for (n = 0; n < id->bNumEndpoints; n++) {
    401 			ed = usbd_interface2endpoint_descriptor(iface, n);
    402 			if (ed == NULL) {
    403 				aprint_error_dev(self,
    404 					"could not read endpoint descriptor\n");
    405 				return;
    406 			}
    407 			if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN &&
    408 			    UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK)
    409 				uca.bulkin = ed->bEndpointAddress;
    410 			else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT &&
    411 			    UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK)
    412 				uca.bulkout = ed->bEndpointAddress;
    413 		}
    414 		if (uca.bulkin == -1 || uca.bulkout == -1) {
    415 			aprint_error_dev(self, "missing endpoint\n");
    416 			return;
    417 		}
    418 
    419 		sc->sc_ucom[i] = config_found_sm_loc(self, "ucombus", NULL, &uca,
    420 						    ucomprint, ucomsubmatch);
    421 	}
    422 
    423 #ifdef U3G_DEBUG
    424 	if (sc->sc_intr_number != -1 && sc->sc_intr_pipe == NULL) {
    425 		sc->sc_intr_buf = malloc(sc->sc_isize, M_USBDEV, M_WAITOK);
    426 		error = usbd_open_pipe_intr(sc->sc_intr_iface,
    427 					    sc->sc_intr_number,
    428 					    USBD_SHORT_XFER_OK,
    429 					    &sc->sc_intr_pipe,
    430 					    sc,
    431 					    sc->sc_intr_buf,
    432 					    sc->sc_isize,
    433 					    u3g_intr,
    434 					    100);
    435 		if (error) {
    436 			aprint_error_dev(self,
    437 			    "cannot open interrupt pipe (addr %d)\n",
    438 			    sc->sc_intr_number);
    439 			return;
    440 		}
    441 	}
    442 #endif
    443 
    444 
    445 	if (!pmf_device_register(self, NULL, NULL))
    446 		aprint_error_dev(self, "couldn't establish power handler\n");
    447 }
    448 
    449 static int
    450 u3g_detach(device_t self, int flags)
    451 {
    452 	struct u3g_softc *sc = device_private(self);
    453 	int rv = 0;
    454 	int i;
    455 
    456 	if (sc->sc_pseudodev)
    457 		return 0;
    458 
    459 	pmf_device_deregister(self);
    460 
    461 	for (i = 0; i < sc->numports; i++) {
    462 		if(sc->sc_ucom[i]) {
    463 			rv = config_detach(sc->sc_ucom[i], flags);
    464 			if(rv != 0) {
    465 				aprint_verbose_dev(self, "Can't deallocat port %d", i);
    466 				return rv;
    467 			}
    468 		}
    469 	}
    470 
    471 #ifdef U3G_DEBUG
    472 	if (sc->sc_intr_pipe != NULL) {
    473 		int err = usbd_abort_pipe(sc->sc_intr_pipe);
    474 		if (err)
    475 			aprint_error_dev(self,
    476 				"abort interrupt pipe failed: %s\n",
    477 				usbd_errstr(err));
    478 		err = usbd_close_pipe(sc->sc_intr_pipe);
    479 		if (err)
    480 			aprint_error_dev(self,
    481 			    "close interrupt pipe failed: %s\n",
    482 			    usbd_errstr(err));
    483 		free(sc->sc_intr_buf, M_USBDEV);
    484 		sc->sc_intr_pipe = NULL;
    485 	}
    486 #endif
    487 
    488 	return 0;
    489 }
    490 
    491 static void
    492 u3g_childdet(device_t self, device_t child)
    493 {
    494 	struct u3g_softc *sc = device_private(self);
    495 	int i;
    496 
    497 	for (i = 0; i < sc->numports; i++) {
    498 		if (sc->sc_ucom[i] == child)
    499 			sc->sc_ucom[i] = NULL;
    500 	}
    501 }
    502 
    503 static int
    504 u3g_activate(device_t self, enum devact act)
    505 {
    506 	struct u3g_softc *sc = device_private(self);
    507 	int i, rv = 0;
    508 
    509 	switch (act) {
    510 	case DVACT_ACTIVATE:
    511 		return (EOPNOTSUPP);
    512 		break;
    513 
    514 	case DVACT_DEACTIVATE:
    515 		for (i = 0; i < sc->numports; i++) {
    516 			if (sc->sc_ucom[i] && config_deactivate(sc->sc_ucom[i]))
    517 				rv = -1;
    518 		}
    519 		break;
    520 	}
    521 	return (rv);
    522 }
    523 
    524 CFATTACH_DECL2_NEW(u3g, sizeof(struct u3g_softc), u3g_match,
    525     u3g_attach, u3g_detach, u3g_activate, NULL, u3g_childdet);
    526