Version:  2.0.40 2.2.26 2.4.37 3.0 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 3.10 3.11 3.12 3.13 3.14 3.15 3.16

Linux/drivers/media/radio/radio-mr800.c

  1 /*
  2  * A driver for the AverMedia MR 800 USB FM radio. This device plugs
  3  * into both the USB and an analog audio input, so this thing
  4  * only deals with initialization and frequency setting, the
  5  * audio data has to be handled by a sound driver.
  6  *
  7  * Copyright (c) 2008 Alexey Klimov <klimov.linux@gmail.com>
  8  *
  9  * This program is free software; you can redistribute it and/or modify
 10  * it under the terms of the GNU General Public License as published by
 11  * the Free Software Foundation; either version 2 of the License, or
 12  * (at your option) any later version.
 13  *
 14  * This program is distributed in the hope that it will be useful,
 15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
 16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 17  * GNU General Public License for more details.
 18  *
 19  * You should have received a copy of the GNU General Public License
 20  * along with this program; if not, write to the Free Software
 21  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 22  */
 23 
 24 /*
 25  * Big thanks to authors and contributors of dsbr100.c and radio-si470x.c
 26  *
 27  * When work was looked pretty good, i discover this:
 28  * http://av-usbradio.sourceforge.net/index.php
 29  * http://sourceforge.net/projects/av-usbradio/
 30  * Latest release of theirs project was in 2005.
 31  * Probably, this driver could be improved through using their
 32  * achievements (specifications given).
 33  * Also, Faidon Liambotis <paravoid@debian.org> wrote nice driver for this radio
 34  * in 2007. He allowed to use his driver to improve current mr800 radio driver.
 35  * http://kerneltrap.org/mailarchive/linux-usb-devel/2007/10/11/342492
 36  *
 37  * Version 0.01:        First working version.
 38  *                      It's required to blacklist AverMedia USB Radio
 39  *                      in usbhid/hid-quirks.c
 40  * Version 0.10:        A lot of cleanups and fixes: unpluging the device,
 41  *                      few mutex locks were added, codinstyle issues, etc.
 42  *                      Added stereo support. Thanks to
 43  *                      Douglas Schilling Landgraf <dougsland@gmail.com> and
 44  *                      David Ellingsworth <david@identd.dyndns.org>
 45  *                      for discussion, help and support.
 46  * Version 0.11:        Converted to v4l2_device.
 47  *
 48  * Many things to do:
 49  *      - Correct power management of device (suspend & resume)
 50  *      - Add code for scanning and smooth tuning
 51  *      - Add code for sensitivity value
 52  *      - Correct mistakes
 53  *      - In Japan another FREQ_MIN and FREQ_MAX
 54  */
 55 
 56 /* kernel includes */
 57 #include <linux/kernel.h>
 58 #include <linux/module.h>
 59 #include <linux/init.h>
 60 #include <linux/slab.h>
 61 #include <linux/input.h>
 62 #include <linux/videodev2.h>
 63 #include <media/v4l2-device.h>
 64 #include <media/v4l2-ioctl.h>
 65 #include <media/v4l2-ctrls.h>
 66 #include <media/v4l2-event.h>
 67 #include <linux/usb.h>
 68 #include <linux/mutex.h>
 69 
 70 /* driver and module definitions */
 71 #define DRIVER_AUTHOR "Alexey Klimov <klimov.linux@gmail.com>"
 72 #define DRIVER_DESC "AverMedia MR 800 USB FM radio driver"
 73 #define DRIVER_VERSION "0.1.2"
 74 
 75 MODULE_AUTHOR(DRIVER_AUTHOR);
 76 MODULE_DESCRIPTION(DRIVER_DESC);
 77 MODULE_LICENSE("GPL");
 78 MODULE_VERSION(DRIVER_VERSION);
 79 
 80 #define USB_AMRADIO_VENDOR 0x07ca
 81 #define USB_AMRADIO_PRODUCT 0xb800
 82 
 83 /* dev_warn macro with driver name */
 84 #define MR800_DRIVER_NAME "radio-mr800"
 85 #define amradio_dev_warn(dev, fmt, arg...)                              \
 86                 dev_warn(dev, MR800_DRIVER_NAME " - " fmt, ##arg)
 87 
 88 #define amradio_dev_err(dev, fmt, arg...) \
 89                 dev_err(dev, MR800_DRIVER_NAME " - " fmt, ##arg)
 90 
 91 /* Probably USB_TIMEOUT should be modified in module parameter */
 92 #define BUFFER_LENGTH 8
 93 #define USB_TIMEOUT 500
 94 
 95 /* Frequency limits in MHz -- these are European values.  For Japanese
 96 devices, that would be 76 and 91.  */
 97 #define FREQ_MIN  87.5
 98 #define FREQ_MAX 108.0
 99 #define FREQ_MUL 16000
100 
101 /*
102  * Commands that device should understand
103  * List isn't full and will be updated with implementation of new functions
104  */
105 #define AMRADIO_SET_FREQ        0xa4
106 #define AMRADIO_GET_READY_FLAG  0xa5
107 #define AMRADIO_GET_SIGNAL      0xa7
108 #define AMRADIO_GET_FREQ        0xa8
109 #define AMRADIO_SET_SEARCH_UP   0xa9
110 #define AMRADIO_SET_SEARCH_DOWN 0xaa
111 #define AMRADIO_SET_MUTE        0xab
112 #define AMRADIO_SET_RIGHT_MUTE  0xac
113 #define AMRADIO_SET_LEFT_MUTE   0xad
114 #define AMRADIO_SET_MONO        0xae
115 #define AMRADIO_SET_SEARCH_LVL  0xb0
116 #define AMRADIO_STOP_SEARCH     0xb1
117 
118 /* Comfortable defines for amradio_set_stereo */
119 #define WANT_STEREO             0x00
120 #define WANT_MONO               0x01
121 
122 /* module parameter */
123 static int radio_nr = -1;
124 module_param(radio_nr, int, 0);
125 MODULE_PARM_DESC(radio_nr, "Radio Nr");
126 
127 /* Data for one (physical) device */
128 struct amradio_device {
129         /* reference to USB and video device */
130         struct usb_device *usbdev;
131         struct usb_interface *intf;
132         struct video_device vdev;
133         struct v4l2_device v4l2_dev;
134         struct v4l2_ctrl_handler hdl;
135 
136         u8 *buffer;
137         struct mutex lock;      /* buffer locking */
138         int curfreq;
139         int stereo;
140         int muted;
141 };
142 
143 static inline struct amradio_device *to_amradio_dev(struct v4l2_device *v4l2_dev)
144 {
145         return container_of(v4l2_dev, struct amradio_device, v4l2_dev);
146 }
147 
148 static int amradio_send_cmd(struct amradio_device *radio, u8 cmd, u8 arg,
149                 u8 *extra, u8 extralen, bool reply)
150 {
151         int retval;
152         int size;
153 
154         radio->buffer[0] = 0x00;
155         radio->buffer[1] = 0x55;
156         radio->buffer[2] = 0xaa;
157         radio->buffer[3] = extralen;
158         radio->buffer[4] = cmd;
159         radio->buffer[5] = arg;
160         radio->buffer[6] = 0x00;
161         radio->buffer[7] = extra || reply ? 8 : 0;
162 
163         retval = usb_bulk_msg(radio->usbdev, usb_sndintpipe(radio->usbdev, 2),
164                 radio->buffer, BUFFER_LENGTH, &size, USB_TIMEOUT);
165 
166         if (retval < 0 || size != BUFFER_LENGTH) {
167                 if (video_is_registered(&radio->vdev))
168                         amradio_dev_warn(&radio->vdev.dev,
169                                         "cmd %02x failed\n", cmd);
170                 return retval ? retval : -EIO;
171         }
172         if (!extra && !reply)
173                 return 0;
174 
175         if (extra) {
176                 memcpy(radio->buffer, extra, extralen);
177                 memset(radio->buffer + extralen, 0, 8 - extralen);
178                 retval = usb_bulk_msg(radio->usbdev, usb_sndintpipe(radio->usbdev, 2),
179                         radio->buffer, BUFFER_LENGTH, &size, USB_TIMEOUT);
180         } else {
181                 memset(radio->buffer, 0, 8);
182                 retval = usb_bulk_msg(radio->usbdev, usb_rcvbulkpipe(radio->usbdev, 0x81),
183                         radio->buffer, BUFFER_LENGTH, &size, USB_TIMEOUT);
184         }
185         if (retval == 0 && size == BUFFER_LENGTH)
186                 return 0;
187         if (video_is_registered(&radio->vdev) && cmd != AMRADIO_GET_READY_FLAG)
188                 amradio_dev_warn(&radio->vdev.dev, "follow-up to cmd %02x failed\n", cmd);
189         return retval ? retval : -EIO;
190 }
191 
192 /* switch on/off the radio. Send 8 bytes to device */
193 static int amradio_set_mute(struct amradio_device *radio, bool mute)
194 {
195         int ret = amradio_send_cmd(radio,
196                         AMRADIO_SET_MUTE, mute, NULL, 0, false);
197 
198         if (!ret)
199                 radio->muted = mute;
200         return ret;
201 }
202 
203 /* set a frequency, freq is defined by v4l's TUNER_LOW, i.e. 1/16th kHz */
204 static int amradio_set_freq(struct amradio_device *radio, int freq)
205 {
206         unsigned short freq_send;
207         u8 buf[3];
208         int retval;
209 
210         /* we need to be sure that frequency isn't out of range */
211         freq = clamp_t(unsigned, freq, FREQ_MIN * FREQ_MUL, FREQ_MAX * FREQ_MUL);
212         freq_send = 0x10 + (freq >> 3) / 25;
213 
214         /* frequency is calculated from freq_send and placed in first 2 bytes */
215         buf[0] = (freq_send >> 8) & 0xff;
216         buf[1] = freq_send & 0xff;
217         buf[2] = 0x01;
218 
219         retval = amradio_send_cmd(radio, AMRADIO_SET_FREQ, 0, buf, 3, false);
220         if (retval)
221                 return retval;
222         radio->curfreq = freq;
223         msleep(40);
224         return 0;
225 }
226 
227 static int amradio_set_stereo(struct amradio_device *radio, bool stereo)
228 {
229         int ret = amradio_send_cmd(radio,
230                         AMRADIO_SET_MONO, !stereo, NULL, 0, false);
231 
232         if (!ret)
233                 radio->stereo = stereo;
234         return ret;
235 }
236 
237 static int amradio_get_stat(struct amradio_device *radio, bool *is_stereo, u32 *signal)
238 {
239         int ret = amradio_send_cmd(radio,
240                         AMRADIO_GET_SIGNAL, 0, NULL, 0, true);
241 
242         if (ret)
243                 return ret;
244         *is_stereo = radio->buffer[2] >> 7;
245         *signal = (radio->buffer[3] & 0xf0) << 8;
246         return 0;
247 }
248 
249 /* Handle unplugging the device.
250  * We call video_unregister_device in any case.
251  * The last function called in this procedure is
252  * usb_amradio_device_release.
253  */
254 static void usb_amradio_disconnect(struct usb_interface *intf)
255 {
256         struct amradio_device *radio = to_amradio_dev(usb_get_intfdata(intf));
257 
258         mutex_lock(&radio->lock);
259         video_unregister_device(&radio->vdev);
260         amradio_set_mute(radio, true);
261         usb_set_intfdata(intf, NULL);
262         v4l2_device_disconnect(&radio->v4l2_dev);
263         mutex_unlock(&radio->lock);
264         v4l2_device_put(&radio->v4l2_dev);
265 }
266 
267 /* vidioc_querycap - query device capabilities */
268 static int vidioc_querycap(struct file *file, void *priv,
269                                         struct v4l2_capability *v)
270 {
271         struct amradio_device *radio = video_drvdata(file);
272 
273         strlcpy(v->driver, "radio-mr800", sizeof(v->driver));
274         strlcpy(v->card, "AverMedia MR 800 USB FM Radio", sizeof(v->card));
275         usb_make_path(radio->usbdev, v->bus_info, sizeof(v->bus_info));
276         v->device_caps = V4L2_CAP_RADIO | V4L2_CAP_TUNER |
277                                         V4L2_CAP_HW_FREQ_SEEK;
278         v->capabilities = v->device_caps | V4L2_CAP_DEVICE_CAPS;
279         return 0;
280 }
281 
282 /* vidioc_g_tuner - get tuner attributes */
283 static int vidioc_g_tuner(struct file *file, void *priv,
284                                 struct v4l2_tuner *v)
285 {
286         struct amradio_device *radio = video_drvdata(file);
287         bool is_stereo = false;
288         int retval;
289 
290         if (v->index > 0)
291                 return -EINVAL;
292 
293         v->signal = 0;
294         retval = amradio_get_stat(radio, &is_stereo, &v->signal);
295         if (retval)
296                 return retval;
297 
298         strcpy(v->name, "FM");
299         v->type = V4L2_TUNER_RADIO;
300         v->rangelow = FREQ_MIN * FREQ_MUL;
301         v->rangehigh = FREQ_MAX * FREQ_MUL;
302         v->capability = V4L2_TUNER_CAP_LOW | V4L2_TUNER_CAP_STEREO |
303                 V4L2_TUNER_CAP_HWSEEK_WRAP;
304         v->rxsubchans = is_stereo ? V4L2_TUNER_SUB_STEREO : V4L2_TUNER_SUB_MONO;
305         v->audmode = radio->stereo ?
306                 V4L2_TUNER_MODE_STEREO : V4L2_TUNER_MODE_MONO;
307         return 0;
308 }
309 
310 /* vidioc_s_tuner - set tuner attributes */
311 static int vidioc_s_tuner(struct file *file, void *priv,
312                                 const struct v4l2_tuner *v)
313 {
314         struct amradio_device *radio = video_drvdata(file);
315 
316         if (v->index > 0)
317                 return -EINVAL;
318 
319         /* mono/stereo selector */
320         switch (v->audmode) {
321         case V4L2_TUNER_MODE_MONO:
322                 return amradio_set_stereo(radio, WANT_MONO);
323         default:
324                 return amradio_set_stereo(radio, WANT_STEREO);
325         }
326 }
327 
328 /* vidioc_s_frequency - set tuner radio frequency */
329 static int vidioc_s_frequency(struct file *file, void *priv,
330                                 const struct v4l2_frequency *f)
331 {
332         struct amradio_device *radio = video_drvdata(file);
333 
334         if (f->tuner != 0)
335                 return -EINVAL;
336         return amradio_set_freq(radio, f->frequency);
337 }
338 
339 /* vidioc_g_frequency - get tuner radio frequency */
340 static int vidioc_g_frequency(struct file *file, void *priv,
341                                 struct v4l2_frequency *f)
342 {
343         struct amradio_device *radio = video_drvdata(file);
344 
345         if (f->tuner != 0 || f->type != V4L2_TUNER_RADIO)
346                 return -EINVAL;
347         f->type = V4L2_TUNER_RADIO;
348         f->frequency = radio->curfreq;
349 
350         return 0;
351 }
352 
353 static int vidioc_s_hw_freq_seek(struct file *file, void *priv,
354                 const struct v4l2_hw_freq_seek *seek)
355 {
356         static u8 buf[8] = {
357                 0x3d, 0x32, 0x0f, 0x08, 0x3d, 0x32, 0x0f, 0x08
358         };
359         struct amradio_device *radio = video_drvdata(file);
360         unsigned long timeout;
361         int retval;
362 
363         if (seek->tuner != 0 || !seek->wrap_around)
364                 return -EINVAL;
365 
366         if (file->f_flags & O_NONBLOCK)
367                 return -EWOULDBLOCK;
368 
369         retval = amradio_send_cmd(radio,
370                         AMRADIO_SET_SEARCH_LVL, 0, buf, 8, false);
371         if (retval)
372                 return retval;
373         amradio_set_freq(radio, radio->curfreq);
374         retval = amradio_send_cmd(radio,
375                 seek->seek_upward ? AMRADIO_SET_SEARCH_UP : AMRADIO_SET_SEARCH_DOWN,
376                 0, NULL, 0, false);
377         if (retval)
378                 return retval;
379         timeout = jiffies + msecs_to_jiffies(30000);
380         for (;;) {
381                 if (time_after(jiffies, timeout)) {
382                         retval = -ENODATA;
383                         break;
384                 }
385                 if (schedule_timeout_interruptible(msecs_to_jiffies(10))) {
386                         retval = -ERESTARTSYS;
387                         break;
388                 }
389                 retval = amradio_send_cmd(radio, AMRADIO_GET_READY_FLAG,
390                                 0, NULL, 0, true);
391                 if (retval)
392                         continue;
393                 amradio_send_cmd(radio, AMRADIO_GET_FREQ, 0, NULL, 0, true);
394                 if (radio->buffer[1] || radio->buffer[2]) {
395                         /* To check: sometimes radio->curfreq is set to out of range value */
396                         radio->curfreq = (radio->buffer[1] << 8) | radio->buffer[2];
397                         radio->curfreq = (radio->curfreq - 0x10) * 200;
398                         amradio_send_cmd(radio, AMRADIO_STOP_SEARCH,
399                                         0, NULL, 0, false);
400                         amradio_set_freq(radio, radio->curfreq);
401                         retval = 0;
402                         break;
403                 }
404         }
405         amradio_send_cmd(radio, AMRADIO_STOP_SEARCH, 0, NULL, 0, false);
406         amradio_set_freq(radio, radio->curfreq);
407         return retval;
408 }
409 
410 static int usb_amradio_s_ctrl(struct v4l2_ctrl *ctrl)
411 {
412         struct amradio_device *radio =
413                 container_of(ctrl->handler, struct amradio_device, hdl);
414 
415         switch (ctrl->id) {
416         case V4L2_CID_AUDIO_MUTE:
417                 return amradio_set_mute(radio, ctrl->val);
418         }
419 
420         return -EINVAL;
421 }
422 
423 static int usb_amradio_init(struct amradio_device *radio)
424 {
425         int retval;
426 
427         retval = amradio_set_mute(radio, true);
428         if (retval)
429                 goto out_err;
430         retval = amradio_set_stereo(radio, true);
431         if (retval)
432                 goto out_err;
433         retval = amradio_set_freq(radio, radio->curfreq);
434         if (retval)
435                 goto out_err;
436         return 0;
437 
438 out_err:
439         amradio_dev_err(&radio->vdev.dev, "initialization failed\n");
440         return retval;
441 }
442 
443 /* Suspend device - stop device. Need to be checked and fixed */
444 static int usb_amradio_suspend(struct usb_interface *intf, pm_message_t message)
445 {
446         struct amradio_device *radio = to_amradio_dev(usb_get_intfdata(intf));
447 
448         mutex_lock(&radio->lock);
449         if (!radio->muted) {
450                 amradio_set_mute(radio, true);
451                 radio->muted = false;
452         }
453         mutex_unlock(&radio->lock);
454 
455         dev_info(&intf->dev, "going into suspend..\n");
456         return 0;
457 }
458 
459 /* Resume device - start device. Need to be checked and fixed */
460 static int usb_amradio_resume(struct usb_interface *intf)
461 {
462         struct amradio_device *radio = to_amradio_dev(usb_get_intfdata(intf));
463 
464         mutex_lock(&radio->lock);
465         amradio_set_stereo(radio, radio->stereo);
466         amradio_set_freq(radio, radio->curfreq);
467 
468         if (!radio->muted)
469                 amradio_set_mute(radio, false);
470 
471         mutex_unlock(&radio->lock);
472 
473         dev_info(&intf->dev, "coming out of suspend..\n");
474         return 0;
475 }
476 
477 static const struct v4l2_ctrl_ops usb_amradio_ctrl_ops = {
478         .s_ctrl = usb_amradio_s_ctrl,
479 };
480 
481 /* File system interface */
482 static const struct v4l2_file_operations usb_amradio_fops = {
483         .owner          = THIS_MODULE,
484         .open           = v4l2_fh_open,
485         .release        = v4l2_fh_release,
486         .poll           = v4l2_ctrl_poll,
487         .unlocked_ioctl = video_ioctl2,
488 };
489 
490 static const struct v4l2_ioctl_ops usb_amradio_ioctl_ops = {
491         .vidioc_querycap    = vidioc_querycap,
492         .vidioc_g_tuner     = vidioc_g_tuner,
493         .vidioc_s_tuner     = vidioc_s_tuner,
494         .vidioc_g_frequency = vidioc_g_frequency,
495         .vidioc_s_frequency = vidioc_s_frequency,
496         .vidioc_s_hw_freq_seek = vidioc_s_hw_freq_seek,
497         .vidioc_log_status  = v4l2_ctrl_log_status,
498         .vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
499         .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
500 };
501 
502 static void usb_amradio_release(struct v4l2_device *v4l2_dev)
503 {
504         struct amradio_device *radio = to_amradio_dev(v4l2_dev);
505 
506         /* free rest memory */
507         v4l2_ctrl_handler_free(&radio->hdl);
508         v4l2_device_unregister(&radio->v4l2_dev);
509         kfree(radio->buffer);
510         kfree(radio);
511 }
512 
513 /* check if the device is present and register with v4l and usb if it is */
514 static int usb_amradio_probe(struct usb_interface *intf,
515                                 const struct usb_device_id *id)
516 {
517         struct amradio_device *radio;
518         int retval = 0;
519 
520         radio = kzalloc(sizeof(struct amradio_device), GFP_KERNEL);
521 
522         if (!radio) {
523                 dev_err(&intf->dev, "kmalloc for amradio_device failed\n");
524                 retval = -ENOMEM;
525                 goto err;
526         }
527 
528         radio->buffer = kmalloc(BUFFER_LENGTH, GFP_KERNEL);
529 
530         if (!radio->buffer) {
531                 dev_err(&intf->dev, "kmalloc for radio->buffer failed\n");
532                 retval = -ENOMEM;
533                 goto err_nobuf;
534         }
535 
536         retval = v4l2_device_register(&intf->dev, &radio->v4l2_dev);
537         if (retval < 0) {
538                 dev_err(&intf->dev, "couldn't register v4l2_device\n");
539                 goto err_v4l2;
540         }
541 
542         v4l2_ctrl_handler_init(&radio->hdl, 1);
543         v4l2_ctrl_new_std(&radio->hdl, &usb_amradio_ctrl_ops,
544                           V4L2_CID_AUDIO_MUTE, 0, 1, 1, 1);
545         if (radio->hdl.error) {
546                 retval = radio->hdl.error;
547                 dev_err(&intf->dev, "couldn't register control\n");
548                 goto err_ctrl;
549         }
550         mutex_init(&radio->lock);
551 
552         radio->v4l2_dev.ctrl_handler = &radio->hdl;
553         radio->v4l2_dev.release = usb_amradio_release;
554         strlcpy(radio->vdev.name, radio->v4l2_dev.name,
555                 sizeof(radio->vdev.name));
556         radio->vdev.v4l2_dev = &radio->v4l2_dev;
557         radio->vdev.fops = &usb_amradio_fops;
558         radio->vdev.ioctl_ops = &usb_amradio_ioctl_ops;
559         radio->vdev.release = video_device_release_empty;
560         radio->vdev.lock = &radio->lock;
561         set_bit(V4L2_FL_USE_FH_PRIO, &radio->vdev.flags);
562 
563         radio->usbdev = interface_to_usbdev(intf);
564         radio->intf = intf;
565         usb_set_intfdata(intf, &radio->v4l2_dev);
566         radio->curfreq = 95.16 * FREQ_MUL;
567 
568         video_set_drvdata(&radio->vdev, radio);
569         retval = usb_amradio_init(radio);
570         if (retval)
571                 goto err_vdev;
572 
573         retval = video_register_device(&radio->vdev, VFL_TYPE_RADIO,
574                                         radio_nr);
575         if (retval < 0) {
576                 dev_err(&intf->dev, "could not register video device\n");
577                 goto err_vdev;
578         }
579 
580         return 0;
581 
582 err_vdev:
583         v4l2_ctrl_handler_free(&radio->hdl);
584 err_ctrl:
585         v4l2_device_unregister(&radio->v4l2_dev);
586 err_v4l2:
587         kfree(radio->buffer);
588 err_nobuf:
589         kfree(radio);
590 err:
591         return retval;
592 }
593 
594 /* USB Device ID List */
595 static struct usb_device_id usb_amradio_device_table[] = {
596         { USB_DEVICE_AND_INTERFACE_INFO(USB_AMRADIO_VENDOR, USB_AMRADIO_PRODUCT,
597                                                         USB_CLASS_HID, 0, 0) },
598         { }                                             /* Terminating entry */
599 };
600 
601 MODULE_DEVICE_TABLE(usb, usb_amradio_device_table);
602 
603 /* USB subsystem interface */
604 static struct usb_driver usb_amradio_driver = {
605         .name                   = MR800_DRIVER_NAME,
606         .probe                  = usb_amradio_probe,
607         .disconnect             = usb_amradio_disconnect,
608         .suspend                = usb_amradio_suspend,
609         .resume                 = usb_amradio_resume,
610         .reset_resume           = usb_amradio_resume,
611         .id_table               = usb_amradio_device_table,
612 };
613 
614 module_usb_driver(usb_amradio_driver);
615 

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