Commit | Line | Data |
---|---|---|
3aefb79a MCC |
1 | /* |
2 | DVB device driver for em28xx | |
3 | ||
4 | (c) 2008 Mauro Carvalho Chehab <mchehab@infradead.org> | |
5 | ||
bdfbf952 DH |
6 | (c) 2008 Devin Heitmueller <devin.heitmueller@gmail.com> |
7 | - Fixes for the driver to properly work with HVR-950 | |
4fd305b2 | 8 | - Fixes for the driver to properly work with Pinnacle PCTV HD Pro Stick |
e14b3658 | 9 | - Fixes for the driver to properly work with AMD ATI TV Wonder HD 600 |
bdfbf952 | 10 | |
3421b778 AT |
11 | (c) 2008 Aidan Thornton <makosoft@googlemail.com> |
12 | ||
13 | Based on cx88-dvb, saa7134-dvb and videobuf-dvb originally written by: | |
3aefb79a MCC |
14 | (c) 2004, 2005 Chris Pascoe <c.pascoe@itee.uq.edu.au> |
15 | (c) 2004 Gerd Knorr <kraxel@bytesex.org> [SuSE Labs] | |
16 | ||
17 | This program is free software; you can redistribute it and/or modify | |
18 | it under the terms of the GNU General Public License as published by | |
19 | the Free Software Foundation; either version 2 of the License. | |
20 | */ | |
21 | ||
22 | #include <linux/kernel.h> | |
23 | #include <linux/usb.h> | |
24 | ||
25 | #include "em28xx.h" | |
26 | #include <media/v4l2-common.h> | |
27 | #include <media/videobuf-vmalloc.h> | |
28 | ||
29 | #include "lgdt330x.h" | |
7e6388a1 | 30 | #include "zl10353.h" |
17d9d558 DH |
31 | #ifdef EM28XX_DRX397XD_SUPPORT |
32 | #include "drx397xD.h" | |
33 | #endif | |
3aefb79a MCC |
34 | |
35 | MODULE_DESCRIPTION("driver for em28xx based DVB cards"); | |
36 | MODULE_AUTHOR("Mauro Carvalho Chehab <mchehab@infradead.org>"); | |
37 | MODULE_LICENSE("GPL"); | |
38 | ||
39 | static unsigned int debug; | |
40 | module_param(debug, int, 0644); | |
41 | MODULE_PARM_DESC(debug, "enable debug messages [dvb]"); | |
42 | ||
43 | DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr); | |
44 | ||
45 | #define dprintk(level, fmt, arg...) do { \ | |
46 | if (debug >= level) \ | |
3421b778 | 47 | printk(KERN_DEBUG "%s/2-dvb: " fmt, dev->name, ## arg); \ |
3aefb79a MCC |
48 | } while (0) |
49 | ||
3421b778 AT |
50 | #define EM28XX_DVB_NUM_BUFS 5 |
51 | #define EM28XX_DVB_MAX_PACKETSIZE 564 | |
52 | #define EM28XX_DVB_MAX_PACKETS 64 | |
53 | ||
54 | struct em28xx_dvb { | |
55 | struct dvb_frontend *frontend; | |
56 | ||
57 | /* feed count management */ | |
58 | struct mutex lock; | |
59 | int nfeeds; | |
60 | ||
61 | /* general boilerplate stuff */ | |
62 | struct dvb_adapter adapter; | |
63 | struct dvb_demux demux; | |
64 | struct dmxdev dmxdev; | |
65 | struct dmx_frontend fe_hw; | |
66 | struct dmx_frontend fe_mem; | |
67 | struct dvb_net net; | |
68 | }; | |
69 | ||
70 | ||
71 | static inline void print_err_status(struct em28xx *dev, | |
72 | int packet, int status) | |
3aefb79a | 73 | { |
3421b778 | 74 | char *errmsg = "Unknown"; |
3aefb79a | 75 | |
3421b778 AT |
76 | switch (status) { |
77 | case -ENOENT: | |
78 | errmsg = "unlinked synchronuously"; | |
79 | break; | |
80 | case -ECONNRESET: | |
81 | errmsg = "unlinked asynchronuously"; | |
82 | break; | |
83 | case -ENOSR: | |
84 | errmsg = "Buffer error (overrun)"; | |
85 | break; | |
86 | case -EPIPE: | |
87 | errmsg = "Stalled (device not responding)"; | |
88 | break; | |
89 | case -EOVERFLOW: | |
90 | errmsg = "Babble (bad cable?)"; | |
91 | break; | |
92 | case -EPROTO: | |
93 | errmsg = "Bit-stuff error (bad cable?)"; | |
94 | break; | |
95 | case -EILSEQ: | |
96 | errmsg = "CRC/Timeout (could be anything)"; | |
97 | break; | |
98 | case -ETIME: | |
99 | errmsg = "Device does not respond"; | |
100 | break; | |
101 | } | |
102 | if (packet < 0) { | |
103 | dprintk(1, "URB status %d [%s].\n", status, errmsg); | |
104 | } else { | |
6ea54d93 DSL |
105 | dprintk(1, "URB packet %d, status %d [%s].\n", |
106 | packet, status, errmsg); | |
3421b778 AT |
107 | } |
108 | } | |
3aefb79a | 109 | |
3421b778 AT |
110 | static inline int dvb_isoc_copy(struct em28xx *dev, struct urb *urb) |
111 | { | |
112 | int i; | |
3aefb79a | 113 | |
3421b778 AT |
114 | if (!dev) |
115 | return 0; | |
3aefb79a | 116 | |
3421b778 AT |
117 | if ((dev->state & DEV_DISCONNECTED) || (dev->state & DEV_MISCONFIGURED)) |
118 | return 0; | |
119 | ||
120 | if (urb->status < 0) { | |
121 | print_err_status(dev, -1, urb->status); | |
122 | if (urb->status == -ENOENT) | |
123 | return 0; | |
124 | } | |
125 | ||
126 | for (i = 0; i < urb->number_of_packets; i++) { | |
127 | int status = urb->iso_frame_desc[i].status; | |
128 | ||
129 | if (status < 0) { | |
130 | print_err_status(dev, i, status); | |
131 | if (urb->iso_frame_desc[i].status != -EPROTO) | |
132 | continue; | |
133 | } | |
134 | ||
135 | dvb_dmx_swfilter(&dev->dvb->demux, urb->transfer_buffer + | |
136 | urb->iso_frame_desc[i].offset, | |
137 | urb->iso_frame_desc[i].actual_length); | |
138 | } | |
139 | ||
140 | return 0; | |
141 | } | |
142 | ||
6ea54d93 DSL |
143 | static int start_streaming(struct em28xx_dvb *dvb) |
144 | { | |
c67ec53f | 145 | int rc; |
3421b778 AT |
146 | struct em28xx *dev = dvb->adapter.priv; |
147 | ||
148 | usb_set_interface(dev->udev, 0, 1); | |
c67ec53f MCC |
149 | rc = em28xx_set_mode(dev, EM28XX_DIGITAL_MODE); |
150 | if (rc < 0) | |
151 | return rc; | |
3421b778 AT |
152 | |
153 | return em28xx_init_isoc(dev, EM28XX_DVB_MAX_PACKETS, | |
154 | EM28XX_DVB_NUM_BUFS, EM28XX_DVB_MAX_PACKETSIZE, | |
c67ec53f | 155 | dvb_isoc_copy); |
3421b778 AT |
156 | } |
157 | ||
6ea54d93 DSL |
158 | static int stop_streaming(struct em28xx_dvb *dvb) |
159 | { | |
3421b778 AT |
160 | struct em28xx *dev = dvb->adapter.priv; |
161 | ||
162 | em28xx_uninit_isoc(dev); | |
c67ec53f MCC |
163 | |
164 | em28xx_set_mode(dev, EM28XX_MODE_UNDEFINED); | |
165 | ||
3aefb79a MCC |
166 | return 0; |
167 | } | |
168 | ||
3421b778 AT |
169 | static int start_feed(struct dvb_demux_feed *feed) |
170 | { | |
171 | struct dvb_demux *demux = feed->demux; | |
172 | struct em28xx_dvb *dvb = demux->priv; | |
173 | int rc, ret; | |
174 | ||
175 | if (!demux->dmx.frontend) | |
176 | return -EINVAL; | |
177 | ||
178 | mutex_lock(&dvb->lock); | |
179 | dvb->nfeeds++; | |
180 | rc = dvb->nfeeds; | |
181 | ||
182 | if (dvb->nfeeds == 1) { | |
183 | ret = start_streaming(dvb); | |
6ea54d93 DSL |
184 | if (ret < 0) |
185 | rc = ret; | |
3421b778 AT |
186 | } |
187 | ||
188 | mutex_unlock(&dvb->lock); | |
189 | return rc; | |
190 | } | |
191 | ||
192 | static int stop_feed(struct dvb_demux_feed *feed) | |
193 | { | |
194 | struct dvb_demux *demux = feed->demux; | |
195 | struct em28xx_dvb *dvb = demux->priv; | |
196 | int err = 0; | |
197 | ||
198 | mutex_lock(&dvb->lock); | |
199 | dvb->nfeeds--; | |
6ea54d93 DSL |
200 | |
201 | if (0 == dvb->nfeeds) | |
3421b778 | 202 | err = stop_streaming(dvb); |
6ea54d93 | 203 | |
3421b778 AT |
204 | mutex_unlock(&dvb->lock); |
205 | return err; | |
206 | } | |
207 | ||
208 | ||
e3569abc MCC |
209 | |
210 | /* ------------------------------------------------------------------ */ | |
211 | static int em28xx_dvb_bus_ctrl(struct dvb_frontend *fe, int acquire) | |
212 | { | |
213 | struct em28xx *dev = fe->dvb->priv; | |
214 | ||
215 | if (acquire) | |
216 | return em28xx_set_mode(dev, EM28XX_DIGITAL_MODE); | |
217 | else | |
218 | return em28xx_set_mode(dev, EM28XX_MODE_UNDEFINED); | |
219 | } | |
220 | ||
3aefb79a MCC |
221 | /* ------------------------------------------------------------------ */ |
222 | ||
227ad4ab MCC |
223 | static struct lgdt330x_config em2880_lgdt3303_dev = { |
224 | .demod_address = 0x0e, | |
225 | .demod_chip = LGDT3303, | |
226 | }; | |
3aefb79a | 227 | |
7e6388a1 AT |
228 | static struct zl10353_config em28xx_zl10353_with_xc3028 = { |
229 | .demod_address = (0x1e >> 1), | |
230 | .no_tuner = 1, | |
231 | .parallel_ts = 1, | |
232 | .if2 = 45600, | |
233 | }; | |
234 | ||
17d9d558 DH |
235 | #ifdef EM28XX_DRX397XD_SUPPORT |
236 | /* [TODO] djh - not sure yet what the device config needs to contain */ | |
237 | static struct drx397xD_config em28xx_drx397xD_with_xc3028 = { | |
238 | .demod_address = (0xe0 >> 1), | |
239 | }; | |
240 | #endif | |
241 | ||
3aefb79a MCC |
242 | /* ------------------------------------------------------------------ */ |
243 | ||
244 | static int attach_xc3028(u8 addr, struct em28xx *dev) | |
245 | { | |
246 | struct dvb_frontend *fe; | |
3ca9c093 MCC |
247 | struct xc2028_config cfg; |
248 | ||
6ea54d93 | 249 | memset(&cfg, 0, sizeof(cfg)); |
3ca9c093 MCC |
250 | cfg.i2c_adap = &dev->i2c_adap; |
251 | cfg.i2c_addr = addr; | |
3ca9c093 MCC |
252 | cfg.callback = em28xx_tuner_callback; |
253 | ||
3421b778 | 254 | if (!dev->dvb->frontend) { |
3aefb79a MCC |
255 | printk(KERN_ERR "%s/2: dvb frontend not attached. " |
256 | "Can't attach xc3028\n", | |
257 | dev->name); | |
258 | return -EINVAL; | |
259 | } | |
260 | ||
3421b778 | 261 | fe = dvb_attach(xc2028_attach, dev->dvb->frontend, &cfg); |
3aefb79a MCC |
262 | if (!fe) { |
263 | printk(KERN_ERR "%s/2: xc3028 attach failed\n", | |
264 | dev->name); | |
3421b778 | 265 | dvb_frontend_detach(dev->dvb->frontend); |
3421b778 | 266 | dev->dvb->frontend = NULL; |
3aefb79a MCC |
267 | return -EINVAL; |
268 | } | |
269 | ||
270 | printk(KERN_INFO "%s/2: xc3028 attached\n", dev->name); | |
271 | ||
272 | return 0; | |
273 | } | |
274 | ||
3421b778 AT |
275 | /* ------------------------------------------------------------------ */ |
276 | ||
d45b9b8a | 277 | static int register_dvb(struct em28xx_dvb *dvb, |
3421b778 AT |
278 | struct module *module, |
279 | struct em28xx *dev, | |
280 | struct device *device) | |
3aefb79a | 281 | { |
3421b778 | 282 | int result; |
3aefb79a | 283 | |
3421b778 | 284 | mutex_init(&dvb->lock); |
3aefb79a | 285 | |
3421b778 AT |
286 | /* register adapter */ |
287 | result = dvb_register_adapter(&dvb->adapter, dev->name, module, device, | |
288 | adapter_nr); | |
289 | if (result < 0) { | |
290 | printk(KERN_WARNING "%s: dvb_register_adapter failed (errno = %d)\n", | |
291 | dev->name, result); | |
292 | goto fail_adapter; | |
293 | } | |
e3569abc MCC |
294 | |
295 | /* Ensure all frontends negotiate bus access */ | |
296 | dvb->frontend->ops.ts_bus_ctrl = em28xx_dvb_bus_ctrl; | |
297 | ||
3421b778 AT |
298 | dvb->adapter.priv = dev; |
299 | ||
300 | /* register frontend */ | |
301 | result = dvb_register_frontend(&dvb->adapter, dvb->frontend); | |
302 | if (result < 0) { | |
303 | printk(KERN_WARNING "%s: dvb_register_frontend failed (errno = %d)\n", | |
304 | dev->name, result); | |
305 | goto fail_frontend; | |
306 | } | |
307 | ||
308 | /* register demux stuff */ | |
309 | dvb->demux.dmx.capabilities = | |
310 | DMX_TS_FILTERING | DMX_SECTION_FILTERING | | |
311 | DMX_MEMORY_BASED_FILTERING; | |
312 | dvb->demux.priv = dvb; | |
313 | dvb->demux.filternum = 256; | |
314 | dvb->demux.feednum = 256; | |
315 | dvb->demux.start_feed = start_feed; | |
316 | dvb->demux.stop_feed = stop_feed; | |
e3569abc | 317 | |
3421b778 AT |
318 | result = dvb_dmx_init(&dvb->demux); |
319 | if (result < 0) { | |
320 | printk(KERN_WARNING "%s: dvb_dmx_init failed (errno = %d)\n", | |
321 | dev->name, result); | |
322 | goto fail_dmx; | |
323 | } | |
324 | ||
325 | dvb->dmxdev.filternum = 256; | |
326 | dvb->dmxdev.demux = &dvb->demux.dmx; | |
327 | dvb->dmxdev.capabilities = 0; | |
328 | result = dvb_dmxdev_init(&dvb->dmxdev, &dvb->adapter); | |
329 | if (result < 0) { | |
330 | printk(KERN_WARNING "%s: dvb_dmxdev_init failed (errno = %d)\n", | |
331 | dev->name, result); | |
332 | goto fail_dmxdev; | |
333 | } | |
52284c3e | 334 | |
3421b778 AT |
335 | dvb->fe_hw.source = DMX_FRONTEND_0; |
336 | result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_hw); | |
337 | if (result < 0) { | |
338 | printk(KERN_WARNING "%s: add_frontend failed (DMX_FRONTEND_0, errno = %d)\n", | |
339 | dev->name, result); | |
340 | goto fail_fe_hw; | |
341 | } | |
342 | ||
343 | dvb->fe_mem.source = DMX_MEMORY_FE; | |
344 | result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_mem); | |
345 | if (result < 0) { | |
346 | printk(KERN_WARNING "%s: add_frontend failed (DMX_MEMORY_FE, errno = %d)\n", | |
347 | dev->name, result); | |
348 | goto fail_fe_mem; | |
349 | } | |
350 | ||
351 | result = dvb->demux.dmx.connect_frontend(&dvb->demux.dmx, &dvb->fe_hw); | |
352 | if (result < 0) { | |
353 | printk(KERN_WARNING "%s: connect_frontend failed (errno = %d)\n", | |
354 | dev->name, result); | |
355 | goto fail_fe_conn; | |
356 | } | |
357 | ||
358 | /* register network adapter */ | |
359 | dvb_net_init(&dvb->adapter, &dvb->net, &dvb->demux.dmx); | |
360 | return 0; | |
361 | ||
362 | fail_fe_conn: | |
363 | dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem); | |
364 | fail_fe_mem: | |
365 | dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw); | |
366 | fail_fe_hw: | |
367 | dvb_dmxdev_release(&dvb->dmxdev); | |
368 | fail_dmxdev: | |
369 | dvb_dmx_release(&dvb->demux); | |
370 | fail_dmx: | |
371 | dvb_unregister_frontend(dvb->frontend); | |
372 | fail_frontend: | |
373 | dvb_frontend_detach(dvb->frontend); | |
374 | dvb_unregister_adapter(&dvb->adapter); | |
375 | fail_adapter: | |
376 | return result; | |
377 | } | |
378 | ||
379 | static void unregister_dvb(struct em28xx_dvb *dvb) | |
380 | { | |
381 | dvb_net_release(&dvb->net); | |
382 | dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem); | |
383 | dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw); | |
384 | dvb_dmxdev_release(&dvb->dmxdev); | |
385 | dvb_dmx_release(&dvb->demux); | |
386 | dvb_unregister_frontend(dvb->frontend); | |
387 | dvb_frontend_detach(dvb->frontend); | |
388 | dvb_unregister_adapter(&dvb->adapter); | |
389 | } | |
390 | ||
391 | ||
392 | static int dvb_init(struct em28xx *dev) | |
393 | { | |
394 | int result = 0; | |
395 | struct em28xx_dvb *dvb; | |
396 | ||
df619181 DH |
397 | if (!dev->has_dvb) { |
398 | /* This device does not support the extension */ | |
399 | return 0; | |
400 | } | |
401 | ||
3421b778 | 402 | dvb = kzalloc(sizeof(struct em28xx_dvb), GFP_KERNEL); |
6ea54d93 DSL |
403 | |
404 | if (dvb == NULL) { | |
405 | printk(KERN_INFO "em28xx_dvb: memory allocation failed\n"); | |
3421b778 AT |
406 | return -ENOMEM; |
407 | } | |
408 | dev->dvb = dvb; | |
3aefb79a | 409 | |
c67ec53f | 410 | em28xx_set_mode(dev, EM28XX_DIGITAL_MODE); |
3aefb79a MCC |
411 | /* init frontend */ |
412 | switch (dev->model) { | |
10ac6603 | 413 | case EM2883_BOARD_HAUPPAUGE_WINTV_HVR_950: |
4fd305b2 | 414 | case EM2880_BOARD_PINNACLE_PCTV_HD_PRO: |
e14b3658 | 415 | case EM2880_BOARD_AMD_ATI_TV_WONDER_HD_600: |
3421b778 AT |
416 | dvb->frontend = dvb_attach(lgdt330x_attach, |
417 | &em2880_lgdt3303_dev, | |
418 | &dev->i2c_adap); | |
419 | if (attach_xc3028(0x61, dev) < 0) { | |
420 | result = -EINVAL; | |
421 | goto out_free; | |
422 | } | |
227ad4ab | 423 | break; |
7e6388a1 | 424 | case EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900: |
3421b778 AT |
425 | dvb->frontend = dvb_attach(zl10353_attach, |
426 | &em28xx_zl10353_with_xc3028, | |
427 | &dev->i2c_adap); | |
428 | if (attach_xc3028(0x61, dev) < 0) { | |
429 | result = -EINVAL; | |
430 | goto out_free; | |
431 | } | |
7e6388a1 | 432 | break; |
17d9d558 DH |
433 | case EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900_R2: |
434 | #ifdef EM28XX_DRX397XD_SUPPORT | |
435 | /* We don't have the config structure properly populated, so | |
436 | this is commented out for now */ | |
437 | dvb->frontend = dvb_attach(drx397xD_attach, | |
438 | &em28xx_drx397xD_with_xc3028, | |
439 | &dev->i2c_adap); | |
440 | if (attach_xc3028(0x61, dev) < 0) { | |
441 | result = -EINVAL; | |
442 | goto out_free; | |
443 | } | |
444 | break; | |
445 | #endif | |
655b8408 | 446 | case EM2880_BOARD_TERRATEC_HYBRID_XS: |
447 | dvb->frontend = dvb_attach(zl10353_attach, | |
448 | &em28xx_zl10353_with_xc3028, | |
449 | &dev->i2c_adap); | |
450 | if (attach_xc3028(0x61, dev) < 0) { | |
451 | result = -EINVAL; | |
452 | goto out_free; | |
453 | } | |
454 | break; | |
da3808e1 DB |
455 | case EM2880_BOARD_KWORLD_DVB_310U: |
456 | dvb->frontend = dvb_attach(zl10353_attach, | |
457 | &em28xx_zl10353_with_xc3028, | |
458 | &dev->i2c_adap); | |
459 | if (attach_xc3028(0x61, dev) < 0) { | |
460 | result = -EINVAL; | |
461 | goto out_free; | |
462 | } | |
463 | break; | |
3aefb79a MCC |
464 | default: |
465 | printk(KERN_ERR "%s/2: The frontend of your DVB/ATSC card" | |
466 | " isn't supported yet\n", | |
467 | dev->name); | |
468 | break; | |
469 | } | |
3421b778 | 470 | if (NULL == dvb->frontend) { |
3aefb79a MCC |
471 | printk(KERN_ERR |
472 | "%s/2: frontend initialization failed\n", | |
473 | dev->name); | |
3421b778 AT |
474 | result = -EINVAL; |
475 | goto out_free; | |
3aefb79a MCC |
476 | } |
477 | ||
478 | /* register everything */ | |
3421b778 AT |
479 | result = register_dvb(dvb, THIS_MODULE, dev, &dev->udev->dev); |
480 | ||
6ea54d93 | 481 | if (result < 0) |
3421b778 | 482 | goto out_free; |
3421b778 | 483 | |
c67ec53f | 484 | em28xx_set_mode(dev, EM28XX_MODE_UNDEFINED); |
102a0b08 | 485 | printk(KERN_INFO "Successfully loaded em28xx-dvb\n"); |
3421b778 AT |
486 | return 0; |
487 | ||
488 | out_free: | |
c67ec53f | 489 | em28xx_set_mode(dev, EM28XX_MODE_UNDEFINED); |
3421b778 AT |
490 | kfree(dvb); |
491 | dev->dvb = NULL; | |
492 | return result; | |
3aefb79a MCC |
493 | } |
494 | ||
495 | static int dvb_fini(struct em28xx *dev) | |
496 | { | |
df619181 DH |
497 | if (!dev->has_dvb) { |
498 | /* This device does not support the extension */ | |
499 | return 0; | |
500 | } | |
501 | ||
3421b778 AT |
502 | if (dev->dvb) { |
503 | unregister_dvb(dev->dvb); | |
504 | dev->dvb = NULL; | |
505 | } | |
3aefb79a MCC |
506 | |
507 | return 0; | |
508 | } | |
509 | ||
510 | static struct em28xx_ops dvb_ops = { | |
511 | .id = EM28XX_DVB, | |
512 | .name = "Em28xx dvb Extension", | |
513 | .init = dvb_init, | |
514 | .fini = dvb_fini, | |
515 | }; | |
516 | ||
517 | static int __init em28xx_dvb_register(void) | |
518 | { | |
519 | return em28xx_register_extension(&dvb_ops); | |
520 | } | |
521 | ||
522 | static void __exit em28xx_dvb_unregister(void) | |
523 | { | |
524 | em28xx_unregister_extension(&dvb_ops); | |
525 | } | |
526 | ||
527 | module_init(em28xx_dvb_register); | |
528 | module_exit(em28xx_dvb_unregister); |