Most motherboards these days have at least two USB controllers. Adjust
[dragonfly.git] / sys / dev / usbmisc / uftdi / uftdi.c
CommitLineData
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1/* $NetBSD: uftdi.c,v 1.12 2002/07/18 14:44:10 scw Exp $ */
2/* $FreeBSD: src/sys/dev/usb/uftdi.c,v 1.3.2.1 2002/11/21 01:28:17 ticso Exp $ */
1f2de5d4 3/* $DragonFly: src/sys/dev/usbmisc/uftdi/uftdi.c,v 1.3 2003/08/07 21:17:14 dillon Exp $ */
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4
5/*
6 * Copyright (c) 2000 The NetBSD Foundation, Inc.
7 * All rights reserved.
8 *
9 * This code is derived from software contributed to The NetBSD Foundation
10 * by Lennart Augustsson (lennart@augustsson.net).
11 *
12 * Redistribution and use in source and binary forms, with or without
13 * modification, are permitted provided that the following conditions
14 * are met:
15 * 1. Redistributions of source code must retain the above copyright
16 * notice, this list of conditions and the following disclaimer.
17 * 2. Redistributions in binary form must reproduce the above copyright
18 * notice, this list of conditions and the following disclaimer in the
19 * documentation and/or other materials provided with the distribution.
20 * 3. All advertising materials mentioning features or use of this software
21 * must display the following acknowledgement:
22 * This product includes software developed by the NetBSD
23 * Foundation, Inc. and its contributors.
24 * 4. Neither the name of The NetBSD Foundation nor the names of its
25 * contributors may be used to endorse or promote products derived
26 * from this software without specific prior written permission.
27 *
28 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
29 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
30 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
31 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
32 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
33 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
34 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
35 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
36 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
37 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
38 * POSSIBILITY OF SUCH DAMAGE.
39 */
40
41/*
42 * FTDI FT8U100AX serial adapter driver
43 */
44
45/*
46 * XXX This driver will not support multiple serial ports.
47 * XXX The ucom layer needs to be extended first.
48 */
49
50#include <sys/cdefs.h>
51
52#include <sys/param.h>
53#include <sys/systm.h>
54#include <sys/kernel.h>
55#include <sys/malloc.h>
56#include <sys/bus.h>
57#include <sys/ioccom.h>
58#include <sys/fcntl.h>
59#include <sys/conf.h>
60#include <sys/tty.h>
61#include <sys/file.h>
62
63#if __FreeBSD_version >= 500014
64#include <sys/selinfo.h>
65#else
66#include <sys/select.h>
67#endif
68
69#include <sys/sysctl.h>
70
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71#include <bus/usb/usb.h>
72#include <bus/usb/usbhid.h>
984263bc 73
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74#include <bus/usb/usbdi.h>
75#include <bus/usb/usbdi_util.h>
76#include <bus/usb/usbdevs.h>
984263bc 77
1f2de5d4 78#include "../ucom/ucomvar.h"
984263bc 79
1f2de5d4 80#include "uftdireg.h"
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81
82#ifdef USB_DEBUG
83static int uftdidebug = 0;
84SYSCTL_NODE(_hw_usb, OID_AUTO, uftdi, CTLFLAG_RW, 0, "USB uftdi");
85SYSCTL_INT(_hw_usb_uftdi, OID_AUTO, debug, CTLFLAG_RW,
86 &uftdidebug, 0, "uftdi debug level");
87#define DPRINTF(x) do { \
88 if (uftdidebug) \
89 logprintf x; \
90 } while (0)
91
92#define DPRINTFN(n, x) do { \
93 if (uftdidebug > (n)) \
94 logprintf x; \
95 } while (0)
96
97#else
98#define DPRINTF(x)
99#define DPRINTFN(n,x)
100#endif
101
102#define UFTDI_CONFIG_INDEX 0
103#define UFTDI_IFACE_INDEX 0
104
105
106/*
107 * These are the maximum number of bytes transferred per frame.
108 * The output buffer size cannot be increased due to the size encoding.
109 */
110#define UFTDIIBUFSIZE 64
111#define UFTDIOBUFSIZE 64
112
113struct uftdi_softc {
114 struct ucom_softc sc_ucom;
115
116 usbd_interface_handle sc_iface; /* interface */
117
118 enum uftdi_type sc_type;
119 u_int sc_hdrlen;
120
121 u_char sc_msr;
122 u_char sc_lsr;
123
124 u_char sc_dying;
125
126 u_int last_lcr;
127};
128
129Static void uftdi_get_status(void *, int portno, u_char *lsr, u_char *msr);
130Static void uftdi_set(void *, int, int, int);
131Static int uftdi_param(void *, int, struct termios *);
132Static int uftdi_open(void *sc, int portno);
133Static void uftdi_read(void *sc, int portno, u_char **ptr,u_int32_t *count);
134Static void uftdi_write(void *sc, int portno, u_char *to, u_char *from,
135 u_int32_t *count);
136Static void uftdi_break(void *sc, int portno, int onoff);
137
138struct ucom_callback uftdi_callback = {
139 uftdi_get_status,
140 uftdi_set,
141 uftdi_param,
142 NULL,
143 uftdi_open,
144 NULL,
145 uftdi_read,
146 uftdi_write,
147};
148
149USB_MATCH(uftdi)
150{
151 USB_MATCH_START(uftdi, uaa);
152
153 if (uaa->iface != NULL)
154 return (UMATCH_NONE);
155
156 DPRINTFN(20,("uftdi: vendor=0x%x, product=0x%x\n",
157 uaa->vendor, uaa->product));
158
159 if (uaa->vendor == USB_VENDOR_FTDI &&
160 (uaa->product == USB_PRODUCT_FTDI_SERIAL_8U100AX ||
161 uaa->product == USB_PRODUCT_FTDI_SERIAL_8U232AM))
162 return (UMATCH_VENDOR_PRODUCT);
163
164 return (UMATCH_NONE);
165}
166
167USB_ATTACH(uftdi)
168{
169 USB_ATTACH_START(uftdi, sc, uaa);
170 usbd_device_handle dev = uaa->device;
171 usbd_interface_handle iface;
172 usb_interface_descriptor_t *id;
173 usb_endpoint_descriptor_t *ed;
174 char *devinfo;
175 const char *devname;
176 int i;
177 usbd_status err;
178 struct ucom_softc *ucom = &sc->sc_ucom;
179 DPRINTFN(10,("\nuftdi_attach: sc=%p\n", sc));
180 devinfo = malloc(1024, M_USBDEV, M_WAITOK);
181
182 ucom->sc_dev = self;
183 ucom->sc_udev = dev;
184
185 devname = USBDEVNAME(ucom->sc_dev);
186
187 /* Move the device into the configured state. */
188 err = usbd_set_config_index(dev, UFTDI_CONFIG_INDEX, 1);
189 if (err) {
190 printf("\n%s: failed to set configuration, err=%s\n",
191 devname, usbd_errstr(err));
192 goto bad;
193 }
194
195 err = usbd_device2interface_handle(dev, UFTDI_IFACE_INDEX, &iface);
196 if (err) {
197 printf("\n%s: failed to get interface, err=%s\n",
198 devname, usbd_errstr(err));
199 goto bad;
200 }
201
202 usbd_devinfo(dev, 0, devinfo);
203 /* USB_ATTACH_SETUP;*/
204 printf("%s: %s\n", devname, devinfo);
205
206 id = usbd_get_interface_descriptor(iface);
207 ucom->sc_iface = iface;
208 switch( uaa->product ){
209 case USB_PRODUCT_FTDI_SERIAL_8U100AX:
210 sc->sc_type = UFTDI_TYPE_SIO;
211 sc->sc_hdrlen = 1;
212 break;
213 case USB_PRODUCT_FTDI_SERIAL_8U232AM:
214 sc->sc_type = UFTDI_TYPE_8U232AM;
215 sc->sc_hdrlen = 0;
216 break;
217
218 default: /* Can't happen */
219 goto bad;
220 }
221
222 ucom->sc_bulkin_no = ucom->sc_bulkout_no = -1;
223
224 for (i = 0; i < id->bNumEndpoints; i++) {
225 int addr, dir, attr;
226 ed = usbd_interface2endpoint_descriptor(iface, i);
227 if (ed == NULL) {
228 printf("%s: could not read endpoint descriptor"
229 ": %s\n", devname, usbd_errstr(err));
230 goto bad;
231 }
232
233 addr = ed->bEndpointAddress;
234 dir = UE_GET_DIR(ed->bEndpointAddress);
235 attr = ed->bmAttributes & UE_XFERTYPE;
236 if (dir == UE_DIR_IN && attr == UE_BULK)
237 ucom->sc_bulkin_no = addr;
238 else if (dir == UE_DIR_OUT && attr == UE_BULK)
239 ucom->sc_bulkout_no = addr;
240 else {
241 printf("%s: unexpected endpoint\n", devname);
242 goto bad;
243 }
244 }
245 if (ucom->sc_bulkin_no == -1) {
246 printf("%s: Could not find data bulk in\n",
247 devname);
248 goto bad;
249 }
250 if (ucom->sc_bulkout_no == -1) {
251 printf("%s: Could not find data bulk out\n",
252 devname);
253 goto bad;
254 }
255 ucom->sc_parent = sc;
256 ucom->sc_portno = FTDI_PIT_SIOA;
257 /* bulkin, bulkout set above */
258
259 ucom->sc_ibufsize = UFTDIIBUFSIZE;
260 ucom->sc_obufsize = UFTDIOBUFSIZE - sc->sc_hdrlen;
261 ucom->sc_ibufsizepad = UFTDIIBUFSIZE;
262 ucom->sc_opkthdrlen = sc->sc_hdrlen;
263
264
265 ucom->sc_callback = &uftdi_callback;
266#if 0
267 usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, ucom->sc_udev,
268 USBDEV(ucom->sc_dev));
269#endif
270 DPRINTF(("uftdi: in=0x%x out=0x%x\n", ucom->sc_bulkin_no, ucom->sc_bulkout_no));
271 ucom_attach(&sc->sc_ucom);
272 free(devinfo, M_USBDEV);
273
274 USB_ATTACH_SUCCESS_RETURN;
275
276bad:
277 DPRINTF(("uftdi_attach: ATTACH ERROR\n"));
278 ucom->sc_dying = 1;
279 free(devinfo, M_USBDEV);
280
281 USB_ATTACH_ERROR_RETURN;
282}
283#if 0
284int
285uftdi_activate(device_ptr_t self, enum devact act)
286{
287 struct uftdi_softc *sc = (struct uftdi_softc *)self;
288 int rv = 0;
289
290 switch (act) {
291 case DVACT_ACTIVATE:
292 return (EOPNOTSUPP);
293 break;
294
295 case DVACT_DEACTIVATE:
296 if (sc->sc_subdev != NULL)
297 rv = config_deactivate(sc->sc_subdev);
298 sc->sc_dying = 1;
299 break;
300 }
301 return (rv);
302}
303#endif
304#if 1
305USB_DETACH(uftdi)
306{
307 USB_DETACH_START(uftdi, sc);
308
309 int rv = 0;
310
311 DPRINTF(("uftdi_detach: sc=%p\n", sc));
312 sc->sc_dying = 1;
313 rv = ucom_detach(&sc->sc_ucom);
314
315 return rv;
316}
317#endif
318Static int
319uftdi_open(void *vsc, int portno)
320{
321 struct uftdi_softc *sc = vsc;
322 struct ucom_softc *ucom = (struct ucom_softc *) vsc;
323 usb_device_request_t req;
324 usbd_status err;
325 struct termios t;
326
327 DPRINTF(("uftdi_open: sc=%p\n", sc));
328
329 if (sc->sc_dying)
330 return (EIO);
331
332 /* Perform a full reset on the device */
333 req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
334 req.bRequest = FTDI_SIO_RESET;
335 USETW(req.wValue, FTDI_SIO_RESET_SIO);
336 USETW(req.wIndex, portno);
337 USETW(req.wLength, 0);
338 err = usbd_do_request(ucom->sc_udev, &req, NULL);
339 if (err)
340 return (EIO);
341
342 /* Set 9600 baud, 2 stop bits, no parity, 8 bits */
343 t.c_ospeed = 9600;
344 t.c_cflag = CSTOPB | CS8;
345 (void)uftdi_param(sc, portno, &t);
346
347 /* Turn on RTS/CTS flow control */
348 req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
349 req.bRequest = FTDI_SIO_SET_FLOW_CTRL;
350 USETW(req.wValue, 0);
351 USETW2(req.wIndex, FTDI_SIO_RTS_CTS_HS, portno);
352 USETW(req.wLength, 0);
353 err = usbd_do_request(ucom->sc_udev, &req, NULL);
354 if (err)
355 return (EIO);
356
357 return (0);
358}
359
360Static void
361uftdi_read(void *vsc, int portno, u_char **ptr, u_int32_t *count)
362{
363 struct uftdi_softc *sc = vsc;
364 u_char msr, lsr;
365
366 DPRINTFN(15,("uftdi_read: sc=%p, port=%d count=%d\n", sc, portno,
367 *count));
368
369 msr = FTDI_GET_MSR(*ptr);
370 lsr = FTDI_GET_LSR(*ptr);
371
372#ifdef USB_DEBUG
373 if (*count != 2)
374 DPRINTFN(10,("uftdi_read: sc=%p, port=%d count=%d data[0]="
375 "0x%02x\n", sc, portno, *count, (*ptr)[2]));
376#endif
377
378 if (sc->sc_msr != msr ||
379 (sc->sc_lsr & FTDI_LSR_MASK) != (lsr & FTDI_LSR_MASK)) {
380 DPRINTF(("uftdi_read: status change msr=0x%02x(0x%02x) "
381 "lsr=0x%02x(0x%02x)\n", msr, sc->sc_msr,
382 lsr, sc->sc_lsr));
383 sc->sc_msr = msr;
384 sc->sc_lsr = lsr;
385 ucom_status_change(&sc->sc_ucom);
386 }
387
388 /* Pick up status and adjust data part. */
389 *ptr += 2;
390 *count -= 2;
391}
392
393Static void
394uftdi_write(void *vsc, int portno, u_char *to, u_char *from, u_int32_t *count)
395{
396 struct uftdi_softc *sc = vsc;
397
398 DPRINTFN(10,("uftdi_write: sc=%p, port=%d count=%u data[0]=0x%02x\n",
399 vsc, portno, *count, from[0]));
400
401 /* Make length tag and copy data */
402 if (sc->sc_hdrlen > 0)
403 *to = FTDI_OUT_TAG(*count, portno);
404
405 memcpy(to + sc->sc_hdrlen, from, *count);
406 *count += sc->sc_hdrlen;
407}
408
409Static void
410uftdi_set(void *vsc, int portno, int reg, int onoff)
411{
412 struct uftdi_softc *sc = vsc;
413 struct ucom_softc *ucom = vsc;
414 usb_device_request_t req;
415 int ctl;
416
417 DPRINTF(("uftdi_set: sc=%p, port=%d reg=%d onoff=%d\n", vsc, portno,
418 reg, onoff));
419
420 switch (reg) {
421 case UCOM_SET_DTR:
422 ctl = onoff ? FTDI_SIO_SET_DTR_HIGH : FTDI_SIO_SET_DTR_LOW;
423 break;
424 case UCOM_SET_RTS:
425 ctl = onoff ? FTDI_SIO_SET_RTS_HIGH : FTDI_SIO_SET_RTS_LOW;
426 break;
427 case UCOM_SET_BREAK:
428 uftdi_break(sc, portno, onoff);
429 return;
430 default:
431 return;
432 }
433 req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
434 req.bRequest = FTDI_SIO_MODEM_CTRL;
435 USETW(req.wValue, ctl);
436 USETW(req.wIndex, portno);
437 USETW(req.wLength, 0);
438 DPRINTFN(2,("uftdi_set: reqtype=0x%02x req=0x%02x value=0x%04x "
439 "index=0x%04x len=%d\n", req.bmRequestType, req.bRequest,
440 UGETW(req.wValue), UGETW(req.wIndex), UGETW(req.wLength)));
441 (void)usbd_do_request(ucom->sc_udev, &req, NULL);
442}
443
444Static int
445uftdi_param(void *vsc, int portno, struct termios *t)
446{
447 struct uftdi_softc *sc = vsc;
448 struct ucom_softc *ucom = vsc;
449 usb_device_request_t req;
450 usbd_status err;
451 int rate=0, data, flow;
452
453 DPRINTF(("uftdi_param: sc=%p\n", sc));
454
455 if (sc->sc_dying)
456 return (EIO);
457
458 switch (sc->sc_type) {
459 case UFTDI_TYPE_SIO:
460 switch (t->c_ospeed) {
461 case 300: rate = ftdi_sio_b300; break;
462 case 600: rate = ftdi_sio_b600; break;
463 case 1200: rate = ftdi_sio_b1200; break;
464 case 2400: rate = ftdi_sio_b2400; break;
465 case 4800: rate = ftdi_sio_b4800; break;
466 case 9600: rate = ftdi_sio_b9600; break;
467 case 19200: rate = ftdi_sio_b19200; break;
468 case 38400: rate = ftdi_sio_b38400; break;
469 case 57600: rate = ftdi_sio_b57600; break;
470 case 115200: rate = ftdi_sio_b115200; break;
471 default:
472 return (EINVAL);
473 }
474 break;
475
476 case UFTDI_TYPE_8U232AM:
477 switch(t->c_ospeed) {
478 case 300: rate = ftdi_8u232am_b300; break;
479 case 600: rate = ftdi_8u232am_b600; break;
480 case 1200: rate = ftdi_8u232am_b1200; break;
481 case 2400: rate = ftdi_8u232am_b2400; break;
482 case 4800: rate = ftdi_8u232am_b4800; break;
483 case 9600: rate = ftdi_8u232am_b9600; break;
484 case 19200: rate = ftdi_8u232am_b19200; break;
485 case 38400: rate = ftdi_8u232am_b38400; break;
486 case 57600: rate = ftdi_8u232am_b57600; break;
487 case 115200: rate = ftdi_8u232am_b115200; break;
488 case 230400: rate = ftdi_8u232am_b230400; break;
489 case 460800: rate = ftdi_8u232am_b460800; break;
490 case 921600: rate = ftdi_8u232am_b921600; break;
491 default:
492 return (EINVAL);
493 }
494 break;
495 }
496 req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
497 req.bRequest = FTDI_SIO_SET_BAUD_RATE;
498 USETW(req.wValue, rate);
499 USETW(req.wIndex, portno);
500 USETW(req.wLength, 0);
501 DPRINTFN(2,("uftdi_param: reqtype=0x%02x req=0x%02x value=0x%04x "
502 "index=0x%04x len=%d\n", req.bmRequestType, req.bRequest,
503 UGETW(req.wValue), UGETW(req.wIndex), UGETW(req.wLength)));
504 err = usbd_do_request(ucom->sc_udev, &req, NULL);
505 if (err)
506 return (EIO);
507
508 if (ISSET(t->c_cflag, CSTOPB))
509 data = FTDI_SIO_SET_DATA_STOP_BITS_2;
510 else
511 data = FTDI_SIO_SET_DATA_STOP_BITS_1;
512 if (ISSET(t->c_cflag, PARENB)) {
513 if (ISSET(t->c_cflag, PARODD))
514 data |= FTDI_SIO_SET_DATA_PARITY_ODD;
515 else
516 data |= FTDI_SIO_SET_DATA_PARITY_EVEN;
517 } else
518 data |= FTDI_SIO_SET_DATA_PARITY_NONE;
519 switch (ISSET(t->c_cflag, CSIZE)) {
520 case CS5:
521 data |= FTDI_SIO_SET_DATA_BITS(5);
522 break;
523 case CS6:
524 data |= FTDI_SIO_SET_DATA_BITS(6);
525 break;
526 case CS7:
527 data |= FTDI_SIO_SET_DATA_BITS(7);
528 break;
529 case CS8:
530 data |= FTDI_SIO_SET_DATA_BITS(8);
531 break;
532 }
533 sc->last_lcr = data;
534
535 req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
536 req.bRequest = FTDI_SIO_SET_DATA;
537 USETW(req.wValue, data);
538 USETW(req.wIndex, portno);
539 USETW(req.wLength, 0);
540 DPRINTFN(2,("uftdi_param: reqtype=0x%02x req=0x%02x value=0x%04x "
541 "index=0x%04x len=%d\n", req.bmRequestType, req.bRequest,
542 UGETW(req.wValue), UGETW(req.wIndex), UGETW(req.wLength)));
543 err = usbd_do_request(ucom->sc_udev, &req, NULL);
544 if (err)
545 return (EIO);
546
547 if (ISSET(t->c_cflag, CRTSCTS)) {
548 flow = FTDI_SIO_RTS_CTS_HS;
549 USETW(req.wValue, 0);
550 } else if (ISSET(t->c_iflag, IXON|IXOFF)) {
551 flow = FTDI_SIO_XON_XOFF_HS;
552 USETW2(req.wValue, t->c_cc[VSTOP], t->c_cc[VSTART]);
553 } else {
554 flow = FTDI_SIO_DISABLE_FLOW_CTRL;
555 USETW(req.wValue, 0);
556 }
557 req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
558 req.bRequest = FTDI_SIO_SET_FLOW_CTRL;
559 USETW2(req.wIndex, flow, portno);
560 USETW(req.wLength, 0);
561 err = usbd_do_request(ucom->sc_udev, &req, NULL);
562 if (err)
563 return (EIO);
564
565 return (0);
566}
567
568void
569uftdi_get_status(void *vsc, int portno, u_char *lsr, u_char *msr)
570{
571 struct uftdi_softc *sc = vsc;
572
573 DPRINTF(("uftdi_status: msr=0x%02x lsr=0x%02x\n",
574 sc->sc_msr, sc->sc_lsr));
575
576 if (msr != NULL)
577 *msr = sc->sc_msr;
578 if (lsr != NULL)
579 *lsr = sc->sc_lsr;
580}
581
582void
583uftdi_break(void *vsc, int portno, int onoff)
584{
585 struct uftdi_softc *sc = vsc;
586 struct ucom_softc *ucom = vsc;
587
588 usb_device_request_t req;
589 int data;
590
591 DPRINTF(("uftdi_break: sc=%p, port=%d onoff=%d\n", vsc, portno,
592 onoff));
593
594 if (onoff) {
595 data = sc->last_lcr | FTDI_SIO_SET_BREAK;
596 } else {
597 data = sc->last_lcr;
598 }
599
600 req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
601 req.bRequest = FTDI_SIO_SET_DATA;
602 USETW(req.wValue, data);
603 USETW(req.wIndex, portno);
604 USETW(req.wLength, 0);
605 (void)usbd_do_request(ucom->sc_udev, &req, NULL);
606}
607
608Static device_method_t uftdi_methods[] = {
609 /* Device interface */
610 DEVMETHOD(device_probe, uftdi_match),
611 DEVMETHOD(device_attach, uftdi_attach),
612 DEVMETHOD(device_detach, uftdi_detach),
613
614 { 0, 0 }
615};
616
617Static driver_t uftdi_driver = {
618 "ucom",
619 uftdi_methods,
620 sizeof (struct uftdi_softc)
621};
622
623DRIVER_MODULE(uftdi, uhub, uftdi_driver, ucom_devclass, usbd_driver_load, 0);
624MODULE_DEPEND(uftdi, usb, 1, 1, 1);
625MODULE_DEPEND(uftdi, ucom,UCOM_MINVER, UCOM_PREFVER, UCOM_MAXVER);