Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes...
[linux-2.6] / drivers / media / dvb / b2c2 / flexcop-usb.c
1 /*
2  * This file is part of linux driver the digital TV devices equipped with B2C2 FlexcopII(b)/III
3  *
4  * flexcop-usb.c - covers the USB part.
5  *
6  * see flexcop.c for copyright information.
7  */
8
9 #define FC_LOG_PREFIX "flexcop_usb"
10 #include "flexcop-usb.h"
11 #include "flexcop-common.h"
12
13 /* Version information */
14 #define DRIVER_VERSION "0.1"
15 #define DRIVER_NAME "Technisat/B2C2 FlexCop II/IIb/III Digital TV USB Driver"
16 #define DRIVER_AUTHOR "Patrick Boettcher <patrick.boettcher@desy.de>"
17
18 /* debug */
19 #ifdef CONFIG_DVB_B2C2_FLEXCOP_DEBUG
20 #define dprintk(level,args...) \
21             do { if ((debug & level)) { printk(args); } } while (0)
22 #define debug_dump(b,l,method) {\
23         int i; \
24         for (i = 0; i < l; i++) method("%02x ", b[i]); \
25         method("\n");\
26 }
27
28 #define DEBSTATUS ""
29 #else
30 #define dprintk(level,args...)
31 #define debug_dump(b,l,method)
32 #define DEBSTATUS " (debugging is not enabled)"
33 #endif
34
35 static int debug;
36 module_param(debug, int, 0644);
37 MODULE_PARM_DESC(debug, "set debugging level (1=info,ts=2,ctrl=4,i2c=8,v8mem=16 (or-able))." DEBSTATUS);
38 #undef DEBSTATUS
39
40 #define deb_info(args...) dprintk(0x01,args)
41 #define deb_ts(args...)   dprintk(0x02,args)
42 #define deb_ctrl(args...) dprintk(0x04,args)
43 #define deb_i2c(args...)  dprintk(0x08,args)
44 #define deb_v8(args...)   dprintk(0x10,args)
45
46 /* JLP 111700: we will include the 1 bit gap between the upper and lower 3 bits
47  * in the IBI address, to make the V8 code simpler.
48  * PCI ADDRESS FORMAT: 0x71C -> 0000 0111 0001 1100 (these are the six bits used)
49  *                  in general: 0000 0HHH 000L LL00
50  * IBI ADDRESS FORMAT:                    RHHH BLLL
51  *
52  * where R is the read(1)/write(0) bit, B is the busy bit
53  * and HHH and LLL are the two sets of three bits from the PCI address.
54  */
55 #define B2C2_FLEX_PCIOFFSET_TO_INTERNALADDR(usPCI) (u8) (((usPCI >> 2) & 0x07) + ((usPCI >> 4) & 0x70))
56 #define B2C2_FLEX_INTERNALADDR_TO_PCIOFFSET(ucAddr) (u16) (((ucAddr & 0x07) << 2) + ((ucAddr & 0x70) << 4))
57
58 /*
59  * DKT 020228
60  * - forget about this VENDOR_BUFFER_SIZE, read and write register
61  *   deal with DWORD or 4 bytes, that should be should from now on
62  * - from now on, we don't support anything older than firm 1.00
63  *   I eliminated the write register as a 2 trip of writing hi word and lo word
64  *   and force this to write only 4 bytes at a time.
65  *   NOTE: this should work with all the firmware from 1.00 and newer
66  */
67 static int flexcop_usb_readwrite_dw(struct flexcop_device *fc, u16 wRegOffsPCI, u32 *val, u8 read)
68 {
69         struct flexcop_usb *fc_usb = fc->bus_specific;
70         u8 request = read ? B2C2_USB_READ_REG : B2C2_USB_WRITE_REG;
71         u8 request_type = (read ? USB_DIR_IN : USB_DIR_OUT) | USB_TYPE_VENDOR;
72         u8 wAddress = B2C2_FLEX_PCIOFFSET_TO_INTERNALADDR(wRegOffsPCI) | (read ? 0x80 : 0);
73
74         int len = usb_control_msg(fc_usb->udev,
75                         read ? B2C2_USB_CTRL_PIPE_IN : B2C2_USB_CTRL_PIPE_OUT,
76                         request,
77                         request_type,  /* 0xc0 read or 0x40 write*/
78                         wAddress,
79                         0,
80                         val,
81                         sizeof(u32),
82                         B2C2_WAIT_FOR_OPERATION_RDW * HZ);
83
84         if (len != sizeof(u32)) {
85                 err("error while %s dword from %d (%d).",read ? "reading" : "writing",
86                         wAddress,wRegOffsPCI);
87                 return -EIO;
88         }
89         return 0;
90 }
91
92 /*
93  * DKT 010817 - add support for V8 memory read/write and flash update
94  */
95 static int flexcop_usb_v8_memory_req(struct flexcop_usb *fc_usb,
96                 flexcop_usb_request_t req, u8 page, u16 wAddress,
97                 u8 *pbBuffer,u32 buflen)
98 {
99 //      u8 dwRequestType;
100         u8 request_type = USB_TYPE_VENDOR;
101         u16 wIndex;
102         int nWaitTime,pipe,len;
103
104         wIndex = page << 8;
105
106         switch (req) {
107                 case B2C2_USB_READ_V8_MEM:
108                         nWaitTime = B2C2_WAIT_FOR_OPERATION_V8READ;
109                         request_type |= USB_DIR_IN;
110 //                      dwRequestType = (u8) RTYPE_READ_V8_MEMORY;
111                         pipe = B2C2_USB_CTRL_PIPE_IN;
112                 break;
113                 case B2C2_USB_WRITE_V8_MEM:
114                         wIndex |= pbBuffer[0];
115                         request_type |= USB_DIR_OUT;
116                         nWaitTime = B2C2_WAIT_FOR_OPERATION_V8WRITE;
117 //                      dwRequestType = (u8) RTYPE_WRITE_V8_MEMORY;
118                         pipe = B2C2_USB_CTRL_PIPE_OUT;
119                 break;
120                 case B2C2_USB_FLASH_BLOCK:
121                         request_type |= USB_DIR_OUT;
122                         nWaitTime = B2C2_WAIT_FOR_OPERATION_V8FLASH;
123 //                      dwRequestType = (u8) RTYPE_WRITE_V8_FLASH;
124                         pipe = B2C2_USB_CTRL_PIPE_OUT;
125                 break;
126                 default:
127                         deb_info("unsupported request for v8_mem_req %x.\n",req);
128                 return -EINVAL;
129         }
130         deb_v8("v8mem: %02x %02x %04x %04x, len: %d\n",request_type,req,
131                         wAddress,wIndex,buflen);
132
133         len = usb_control_msg(fc_usb->udev,pipe,
134                         req,
135                         request_type,
136                         wAddress,
137                         wIndex,
138                         pbBuffer,
139                         buflen,
140                         nWaitTime * HZ);
141
142         debug_dump(pbBuffer,len,deb_v8);
143
144         return len == buflen ? 0 : -EIO;
145 }
146
147 #define bytes_left_to_read_on_page(paddr,buflen) \
148                         ((V8_MEMORY_PAGE_SIZE - (paddr & V8_MEMORY_PAGE_MASK)) > buflen \
149                         ? buflen : (V8_MEMORY_PAGE_SIZE - (paddr & V8_MEMORY_PAGE_MASK)))
150
151 static int flexcop_usb_memory_req(struct flexcop_usb *fc_usb,flexcop_usb_request_t req,
152                 flexcop_usb_mem_page_t page_start, u32 addr, int extended, u8 *buf, u32 len)
153 {
154         int i,ret = 0;
155         u16 wMax;
156         u32 pagechunk = 0;
157
158         switch(req) {
159                 case B2C2_USB_READ_V8_MEM:  wMax = USB_MEM_READ_MAX; break;
160                 case B2C2_USB_WRITE_V8_MEM:     wMax = USB_MEM_WRITE_MAX; break;
161                 case B2C2_USB_FLASH_BLOCK:  wMax = USB_FLASH_MAX; break;
162                 default:
163                         return -EINVAL;
164                 break;
165         }
166         for (i = 0; i < len;) {
167                 pagechunk = wMax < bytes_left_to_read_on_page(addr,len) ? wMax : bytes_left_to_read_on_page(addr,len);
168                 deb_info("%x\n",(addr & V8_MEMORY_PAGE_MASK) | (V8_MEMORY_EXTENDED*extended));
169                 if ((ret = flexcop_usb_v8_memory_req(fc_usb,req,
170                                 page_start + (addr / V8_MEMORY_PAGE_SIZE), /* actual page */
171                                 (addr & V8_MEMORY_PAGE_MASK) | (V8_MEMORY_EXTENDED*extended),
172                                 &buf[i],pagechunk)) < 0)
173                         return ret;
174
175                 addr += pagechunk;
176                 len -= pagechunk;
177         }
178         return 0;
179 }
180
181 static int flexcop_usb_get_mac_addr(struct flexcop_device *fc, int extended)
182 {
183         return flexcop_usb_memory_req(fc->bus_specific,B2C2_USB_READ_V8_MEM,
184                         V8_MEMORY_PAGE_FLASH,0x1f010,1,fc->dvb_adapter.proposed_mac,6);
185 }
186
187 #if 0
188 static int flexcop_usb_utility_req(struct flexcop_usb *fc_usb, int set,
189                 flexcop_usb_utility_function_t func, u8 extra, u16 wIndex,
190                 u16 buflen, u8 *pvBuffer)
191 {
192         u16 wValue;
193         u8 request_type = (set ? USB_DIR_OUT : USB_DIR_IN) | USB_TYPE_VENDOR;
194 //      u8 dwRequestType = (u8) RTYPE_GENERIC,
195         int nWaitTime = 2,
196                 pipe = set ? B2C2_USB_CTRL_PIPE_OUT : B2C2_USB_CTRL_PIPE_IN,
197                 len;
198
199         wValue = (func << 8) | extra;
200
201         len = usb_control_msg(fc_usb->udev,pipe,
202                         B2C2_USB_UTILITY,
203                         request_type,
204                         wValue,
205                         wIndex,
206                         pvBuffer,
207                         buflen,
208                         nWaitTime * HZ);
209         return len == buflen ? 0 : -EIO;
210 }
211 #endif
212
213 /* usb i2c stuff */
214 static int flexcop_usb_i2c_req(struct flexcop_i2c_adapter *i2c,
215                 flexcop_usb_request_t req, flexcop_usb_i2c_function_t func,
216                 u8 chipaddr, u8 addr, u8 *buf, u8 buflen)
217 {
218         struct flexcop_usb *fc_usb = i2c->fc->bus_specific;
219         u16 wValue, wIndex;
220         int nWaitTime,pipe,len;
221 //      u8 dwRequestType;
222         u8 request_type = USB_TYPE_VENDOR;
223
224         switch (func) {
225                 case USB_FUNC_I2C_WRITE:
226                 case USB_FUNC_I2C_MULTIWRITE:
227                 case USB_FUNC_I2C_REPEATWRITE:
228                 /* DKT 020208 - add this to support special case of DiSEqC */
229                 case USB_FUNC_I2C_CHECKWRITE:
230                         pipe = B2C2_USB_CTRL_PIPE_OUT;
231                         nWaitTime = 2;
232 //                      dwRequestType = (u8) RTYPE_GENERIC;
233                         request_type |= USB_DIR_OUT;
234                 break;
235                 case USB_FUNC_I2C_READ:
236                 case USB_FUNC_I2C_REPEATREAD:
237                         pipe = B2C2_USB_CTRL_PIPE_IN;
238                         nWaitTime = 2;
239 //                      dwRequestType = (u8) RTYPE_GENERIC;
240                         request_type |= USB_DIR_IN;
241                 break;
242                 default:
243                         deb_info("unsupported function for i2c_req %x\n",func);
244                         return -EINVAL;
245         }
246         wValue = (func << 8) | (i2c->port << 4);
247         wIndex = (chipaddr << 8 ) | addr;
248
249         deb_i2c("i2c %2d: %02x %02x %02x %02x %02x %02x\n",func,request_type,req,
250                 wValue & 0xff, wValue >> 8, wIndex & 0xff, wIndex >> 8);
251
252         len = usb_control_msg(fc_usb->udev,pipe,
253                         req,
254                         request_type,
255                         wValue,
256                         wIndex,
257                         buf,
258                         buflen,
259                         nWaitTime * HZ);
260
261         return len == buflen ? 0 : -EREMOTEIO;
262 }
263
264 /* actual bus specific access functions, make sure prototype are/will be equal to pci */
265 static flexcop_ibi_value flexcop_usb_read_ibi_reg(struct flexcop_device *fc, flexcop_ibi_register reg)
266 {
267         flexcop_ibi_value val;
268         val.raw = 0;
269         flexcop_usb_readwrite_dw(fc,reg, &val.raw, 1);
270         return val;
271 }
272
273 static int flexcop_usb_write_ibi_reg(struct flexcop_device *fc, flexcop_ibi_register reg, flexcop_ibi_value val)
274 {
275         return flexcop_usb_readwrite_dw(fc,reg, &val.raw, 0);
276 }
277
278 static int flexcop_usb_i2c_request(struct flexcop_i2c_adapter *i2c,
279         flexcop_access_op_t op, u8 chipaddr, u8 addr, u8 *buf, u16 len)
280 {
281         if (op == FC_READ)
282                 return flexcop_usb_i2c_req(i2c, B2C2_USB_I2C_REQUEST,
283                         USB_FUNC_I2C_READ, chipaddr, addr, buf, len);
284         else
285                 return flexcop_usb_i2c_req(i2c, B2C2_USB_I2C_REQUEST,
286                         USB_FUNC_I2C_WRITE, chipaddr, addr, buf, len);
287 }
288
289 static void flexcop_usb_process_frame(struct flexcop_usb *fc_usb, u8 *buffer, int buffer_length)
290 {
291         u8 *b;
292         int l;
293
294         deb_ts("tmp_buffer_length=%d, buffer_length=%d\n", fc_usb->tmp_buffer_length, buffer_length);
295
296         if (fc_usb->tmp_buffer_length > 0) {
297                 memcpy(fc_usb->tmp_buffer+fc_usb->tmp_buffer_length, buffer, buffer_length);
298                 fc_usb->tmp_buffer_length += buffer_length;
299                 b = fc_usb->tmp_buffer;
300                 l = fc_usb->tmp_buffer_length;
301         } else {
302                 b=buffer;
303                 l=buffer_length;
304         }
305
306         while (l >= 190) {
307                 if (*b == 0xff)
308                         switch (*(b+1) & 0x03) {
309                                 case 0x01: /* media packet */
310                                         if ( *(b+2) == 0x47 )
311                                                 flexcop_pass_dmx_packets(fc_usb->fc_dev, b+2, 1);
312                                         else
313                                                 deb_ts("not ts packet %02x %02x %02x %02x \n", *(b+2), *(b+3), *(b+4), *(b+5) );
314
315                                         b += 190;
316                                         l -= 190;
317                                 break;
318                                 default:
319                                         deb_ts("wrong packet type\n");
320                                         l = 0;
321                                 break;
322                         }
323                 else {
324                         deb_ts("wrong header\n");
325                         l = 0;
326                 }
327         }
328
329         if (l>0)
330                 memcpy(fc_usb->tmp_buffer, b, l);
331         fc_usb->tmp_buffer_length = l;
332 }
333
334 static void flexcop_usb_urb_complete(struct urb *urb)
335 {
336         struct flexcop_usb *fc_usb = urb->context;
337         int i;
338
339         if (urb->actual_length > 0)
340                 deb_ts("urb completed, bufsize: %d actlen; %d\n",urb->transfer_buffer_length, urb->actual_length);
341
342         for (i = 0; i < urb->number_of_packets; i++) {
343                 if (urb->iso_frame_desc[i].status < 0) {
344                         err("iso frame descriptor %d has an error: %d\n",i,urb->iso_frame_desc[i].status);
345                 } else
346                         if (urb->iso_frame_desc[i].actual_length > 0) {
347                                 deb_ts("passed %d bytes to the demux\n",urb->iso_frame_desc[i].actual_length);
348
349                                 flexcop_usb_process_frame(fc_usb,
350                                         urb->transfer_buffer + urb->iso_frame_desc[i].offset,
351                                         urb->iso_frame_desc[i].actual_length);
352                 }
353                 urb->iso_frame_desc[i].status = 0;
354                 urb->iso_frame_desc[i].actual_length = 0;
355         }
356
357         usb_submit_urb(urb,GFP_ATOMIC);
358 }
359
360 static int flexcop_usb_stream_control(struct flexcop_device *fc, int onoff)
361 {
362         /* submit/kill iso packets */
363         return 0;
364 }
365
366 static void flexcop_usb_transfer_exit(struct flexcop_usb *fc_usb)
367 {
368         int i;
369         for (i = 0; i < B2C2_USB_NUM_ISO_URB; i++)
370                 if (fc_usb->iso_urb[i] != NULL) {
371                         deb_ts("unlinking/killing urb no. %d\n",i);
372                         usb_kill_urb(fc_usb->iso_urb[i]);
373                         usb_free_urb(fc_usb->iso_urb[i]);
374                 }
375
376         if (fc_usb->iso_buffer != NULL)
377                 pci_free_consistent(NULL,fc_usb->buffer_size, fc_usb->iso_buffer, fc_usb->dma_addr);
378 }
379
380 static int flexcop_usb_transfer_init(struct flexcop_usb *fc_usb)
381 {
382         u16 frame_size = le16_to_cpu(fc_usb->uintf->cur_altsetting->endpoint[0].desc.wMaxPacketSize);
383         int bufsize = B2C2_USB_NUM_ISO_URB * B2C2_USB_FRAMES_PER_ISO * frame_size,i,j,ret;
384         int buffer_offset = 0;
385
386         deb_ts("creating %d iso-urbs with %d frames each of %d bytes size = %d.\n",
387                         B2C2_USB_NUM_ISO_URB, B2C2_USB_FRAMES_PER_ISO, frame_size,bufsize);
388
389         fc_usb->iso_buffer = pci_alloc_consistent(NULL,bufsize,&fc_usb->dma_addr);
390         if (fc_usb->iso_buffer == NULL)
391                 return -ENOMEM;
392         memset(fc_usb->iso_buffer, 0, bufsize);
393         fc_usb->buffer_size = bufsize;
394
395         /* creating iso urbs */
396         for (i = 0; i < B2C2_USB_NUM_ISO_URB; i++)
397                 if (!(fc_usb->iso_urb[i] = usb_alloc_urb(B2C2_USB_FRAMES_PER_ISO,GFP_ATOMIC))) {
398                         ret = -ENOMEM;
399                         goto urb_error;
400                 }
401         /* initialising and submitting iso urbs */
402         for (i = 0; i < B2C2_USB_NUM_ISO_URB; i++) {
403                 int frame_offset = 0;
404                 struct urb *urb = fc_usb->iso_urb[i];
405                 deb_ts("initializing and submitting urb no. %d (buf_offset: %d).\n",i,buffer_offset);
406
407                 urb->dev = fc_usb->udev;
408                 urb->context = fc_usb;
409                 urb->complete = flexcop_usb_urb_complete;
410                 urb->pipe = B2C2_USB_DATA_PIPE;
411                 urb->transfer_flags = URB_ISO_ASAP;
412                 urb->interval = 1;
413                 urb->number_of_packets = B2C2_USB_FRAMES_PER_ISO;
414                 urb->transfer_buffer_length = frame_size * B2C2_USB_FRAMES_PER_ISO;
415                 urb->transfer_buffer = fc_usb->iso_buffer + buffer_offset;
416
417                 buffer_offset += frame_size * B2C2_USB_FRAMES_PER_ISO;
418                 for (j = 0; j < B2C2_USB_FRAMES_PER_ISO; j++) {
419                         deb_ts("urb no: %d, frame: %d, frame_offset: %d\n",i,j,frame_offset);
420                         urb->iso_frame_desc[j].offset = frame_offset;
421                         urb->iso_frame_desc[j].length = frame_size;
422                         frame_offset += frame_size;
423                 }
424
425                 if ((ret = usb_submit_urb(fc_usb->iso_urb[i],GFP_ATOMIC))) {
426                         err("submitting urb %d failed with %d.",i,ret);
427                         goto urb_error;
428                 }
429                 deb_ts("submitted urb no. %d.\n",i);
430         }
431
432 /* SRAM */
433
434         flexcop_sram_set_dest(fc_usb->fc_dev,FC_SRAM_DEST_MEDIA | FC_SRAM_DEST_NET |
435                         FC_SRAM_DEST_CAO | FC_SRAM_DEST_CAI, FC_SRAM_DEST_TARGET_WAN_USB);
436         flexcop_wan_set_speed(fc_usb->fc_dev,FC_WAN_SPEED_8MBITS);
437         flexcop_sram_ctrl(fc_usb->fc_dev,1,1,1);
438
439         return 0;
440
441 urb_error:
442         flexcop_usb_transfer_exit(fc_usb);
443         return ret;
444 }
445
446 static int flexcop_usb_init(struct flexcop_usb *fc_usb)
447 {
448         /* use the alternate setting with the larges buffer */
449         usb_set_interface(fc_usb->udev,0,1);
450         switch (fc_usb->udev->speed) {
451                 case USB_SPEED_LOW:
452                         err("cannot handle USB speed because it is to sLOW.");
453                         return -ENODEV;
454                         break;
455                 case USB_SPEED_FULL:
456                         info("running at FULL speed.");
457                         break;
458                 case USB_SPEED_HIGH:
459                         info("running at HIGH speed.");
460                         break;
461                 case USB_SPEED_UNKNOWN: /* fall through */
462                 default:
463                         err("cannot handle USB speed because it is unkown.");
464                         return -ENODEV;
465         }
466         usb_set_intfdata(fc_usb->uintf, fc_usb);
467         return 0;
468 }
469
470 static void flexcop_usb_exit(struct flexcop_usb *fc_usb)
471 {
472         usb_set_intfdata(fc_usb->uintf, NULL);
473 }
474
475 static int flexcop_usb_probe(struct usb_interface *intf,
476                 const struct usb_device_id *id)
477 {
478         struct usb_device *udev = interface_to_usbdev(intf);
479         struct flexcop_usb *fc_usb = NULL;
480         struct flexcop_device *fc = NULL;
481         int ret;
482
483         if ((fc = flexcop_device_kmalloc(sizeof(struct flexcop_usb))) == NULL) {
484                 err("out of memory\n");
485                 return -ENOMEM;
486         }
487
488 /* general flexcop init */
489         fc_usb = fc->bus_specific;
490         fc_usb->fc_dev = fc;
491
492         fc->read_ibi_reg  = flexcop_usb_read_ibi_reg;
493         fc->write_ibi_reg = flexcop_usb_write_ibi_reg;
494         fc->i2c_request = flexcop_usb_i2c_request;
495         fc->get_mac_addr = flexcop_usb_get_mac_addr;
496
497         fc->stream_control = flexcop_usb_stream_control;
498
499         fc->pid_filtering = 1;
500         fc->bus_type = FC_USB;
501
502         fc->dev = &udev->dev;
503         fc->owner = THIS_MODULE;
504
505 /* bus specific part */
506         fc_usb->udev = udev;
507         fc_usb->uintf = intf;
508         if ((ret = flexcop_usb_init(fc_usb)) != 0)
509                 goto err_kfree;
510
511 /* init flexcop */
512         if ((ret = flexcop_device_initialize(fc)) != 0)
513                 goto err_usb_exit;
514
515 /* xfer init */
516         if ((ret = flexcop_usb_transfer_init(fc_usb)) != 0)
517                 goto err_fc_exit;
518
519         info("%s successfully initialized and connected.",DRIVER_NAME);
520         return 0;
521
522 err_fc_exit:
523         flexcop_device_exit(fc);
524 err_usb_exit:
525         flexcop_usb_exit(fc_usb);
526 err_kfree:
527         flexcop_device_kfree(fc);
528         return ret;
529 }
530
531 static void flexcop_usb_disconnect(struct usb_interface *intf)
532 {
533         struct flexcop_usb *fc_usb = usb_get_intfdata(intf);
534         flexcop_usb_transfer_exit(fc_usb);
535         flexcop_device_exit(fc_usb->fc_dev);
536         flexcop_usb_exit(fc_usb);
537         flexcop_device_kfree(fc_usb->fc_dev);
538         info("%s successfully deinitialized and disconnected.",DRIVER_NAME);
539 }
540
541 static struct usb_device_id flexcop_usb_table [] = {
542             { USB_DEVICE(0x0af7, 0x0101) },
543             { }
544 };
545 MODULE_DEVICE_TABLE (usb, flexcop_usb_table);
546
547 /* usb specific object needed to register this driver with the usb subsystem */
548 static struct usb_driver flexcop_usb_driver = {
549         .name           = "b2c2_flexcop_usb",
550         .probe          = flexcop_usb_probe,
551         .disconnect = flexcop_usb_disconnect,
552         .id_table       = flexcop_usb_table,
553 };
554
555 /* module stuff */
556 static int __init flexcop_usb_module_init(void)
557 {
558         int result;
559         if ((result = usb_register(&flexcop_usb_driver))) {
560                 err("usb_register failed. (%d)",result);
561                 return result;
562         }
563
564         return 0;
565 }
566
567 static void __exit flexcop_usb_module_exit(void)
568 {
569         /* deregister this driver from the USB subsystem */
570         usb_deregister(&flexcop_usb_driver);
571 }
572
573 module_init(flexcop_usb_module_init);
574 module_exit(flexcop_usb_module_exit);
575
576 MODULE_AUTHOR(DRIVER_AUTHOR);
577 MODULE_DESCRIPTION(DRIVER_NAME);
578 MODULE_LICENSE("GPL");