1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * Linux driver for digital TV devices equipped with B2C2 FlexcopII(b)/III
4 * flexcop-usb.c - covers the USB part
5 * see flexcop.c for copyright information
6 */
7#define FC_LOG_PREFIX "flexcop_usb"
8#include "flexcop-usb.h"
9#include "flexcop-common.h"
10
11/* Version information */
12#define DRIVER_VERSION "0.1"
13#define DRIVER_NAME "Technisat/B2C2 FlexCop II/IIb/III Digital TV USB Driver"
14#define DRIVER_AUTHOR "Patrick Boettcher <patrick.boettcher@posteo.de>"
15
16/* debug */
17#ifdef CONFIG_DVB_B2C2_FLEXCOP_DEBUG
18#define dprintk(level, args...) \
19	do { if ((debug & (level))) printk(args); } while (0)
20
21#define debug_dump(b, l, method) do {\
22	int i; \
23	for (i = 0; i < l; i++) \
24		method("%02x ", b[i]); \
25	method("\n"); \
26} while (0)
27
28#define DEBSTATUS ""
29#else
30#define dprintk(level, args...) no_printk(args)
31#define debug_dump(b, l, method) do { } while (0)
32#define DEBSTATUS " (debugging is not enabled)"
33#endif
34
35static int debug;
36module_param(debug, int, 0644);
37MODULE_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 (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) \
56	(((usPCI >> 2) & 0x07) + ((usPCI >> 4) & 0x70))
57#define B2C2_FLEX_INTERNALADDR_TO_PCIOFFSET(ucAddr) (u16) \
58	(((ucAddr & 0x07) << 2) + ((ucAddr & 0x70) << 4))
59
60/*
61 * DKT 020228
62 * - forget about this VENDOR_BUFFER_SIZE, read and write register
63 *   deal with DWORD or 4 bytes, that should be should from now on
64 * - from now on, we don't support anything older than firm 1.00
65 *   I eliminated the write register as a 2 trip of writing hi word and lo word
66 *   and force this to write only 4 bytes at a time.
67 *   NOTE: this should work with all the firmware from 1.00 and newer
68 */
69static int flexcop_usb_readwrite_dw(struct flexcop_device *fc, u16 wRegOffsPCI, u32 *val, u8 read)
70{
71	struct flexcop_usb *fc_usb = fc->bus_specific;
72	u8 request = read ? B2C2_USB_READ_REG : B2C2_USB_WRITE_REG;
73	u8 request_type = (read ? USB_DIR_IN : USB_DIR_OUT) | USB_TYPE_VENDOR;
74	u8 wAddress = B2C2_FLEX_PCIOFFSET_TO_INTERNALADDR(wRegOffsPCI) |
75		(read ? 0x80 : 0);
76	int ret;
77
78	mutex_lock(&fc_usb->data_mutex);
79	if (!read)
80		memcpy(fc_usb->data, val, sizeof(*val));
81
82	ret = usb_control_msg(fc_usb->udev,
83			read ? B2C2_USB_CTRL_PIPE_IN : B2C2_USB_CTRL_PIPE_OUT,
84			request,
85			request_type, /* 0xc0 read or 0x40 write */
86			wAddress,
87			0,
88			fc_usb->data,
89			sizeof(u32),
90			B2C2_WAIT_FOR_OPERATION_RDW);
91
92	if (ret != sizeof(u32)) {
93		err("error while %s dword from %d (%d).", read ? "reading" :
94				"writing", wAddress, wRegOffsPCI);
95		if (ret >= 0)
96			ret = -EIO;
97	}
98
99	if (read && ret >= 0)
100		memcpy(val, fc_usb->data, sizeof(*val));
101	mutex_unlock(&fc_usb->data_mutex);
102
103	return ret;
104}
105/*
106 * DKT 010817 - add support for V8 memory read/write and flash update
107 */
108static int flexcop_usb_v8_memory_req(struct flexcop_usb *fc_usb,
109		flexcop_usb_request_t req, u8 page, u16 wAddress,
110		u8 *pbBuffer, u32 buflen)
111{
112	u8 request_type = USB_TYPE_VENDOR;
113	u16 wIndex;
114	int nWaitTime, pipe, ret;
115	wIndex = page << 8;
116
117	if (buflen > sizeof(fc_usb->data)) {
118		err("Buffer size bigger than max URB control message\n");
119		return -EIO;
120	}
121
122	switch (req) {
123	case B2C2_USB_READ_V8_MEM:
124		nWaitTime = B2C2_WAIT_FOR_OPERATION_V8READ;
125		request_type |= USB_DIR_IN;
126		pipe = B2C2_USB_CTRL_PIPE_IN;
127		break;
128	case B2C2_USB_WRITE_V8_MEM:
129		wIndex |= pbBuffer[0];
130		request_type |= USB_DIR_OUT;
131		nWaitTime = B2C2_WAIT_FOR_OPERATION_V8WRITE;
132		pipe = B2C2_USB_CTRL_PIPE_OUT;
133		break;
134	case B2C2_USB_FLASH_BLOCK:
135		request_type |= USB_DIR_OUT;
136		nWaitTime = B2C2_WAIT_FOR_OPERATION_V8FLASH;
137		pipe = B2C2_USB_CTRL_PIPE_OUT;
138		break;
139	default:
140		deb_info("unsupported request for v8_mem_req %x.\n", req);
141		return -EINVAL;
142	}
143	deb_v8("v8mem: %02x %02x %04x %04x, len: %d\n", request_type, req,
144			wAddress, wIndex, buflen);
145
146	mutex_lock(&fc_usb->data_mutex);
147
148	if ((request_type & USB_ENDPOINT_DIR_MASK) == USB_DIR_OUT)
149		memcpy(fc_usb->data, pbBuffer, buflen);
150
151	ret = usb_control_msg(fc_usb->udev, pipe,
152			req,
153			request_type,
154			wAddress,
155			wIndex,
156			fc_usb->data,
157			buflen,
158			nWaitTime);
159	if (ret != buflen)
160		ret = -EIO;
161
162	if (ret >= 0) {
163		ret = 0;
164		if ((request_type & USB_ENDPOINT_DIR_MASK) == USB_DIR_IN)
165			memcpy(pbBuffer, fc_usb->data, buflen);
166	}
167
168	mutex_unlock(&fc_usb->data_mutex);
169
170	debug_dump(pbBuffer, ret, deb_v8);
171	return ret;
172}
173
174#define bytes_left_to_read_on_page(paddr, buflen) \
175	((V8_MEMORY_PAGE_SIZE - (paddr & V8_MEMORY_PAGE_MASK)) > buflen \
176	 ? buflen : (V8_MEMORY_PAGE_SIZE - (paddr & V8_MEMORY_PAGE_MASK)))
177
178static int flexcop_usb_memory_req(struct flexcop_usb *fc_usb,
179		flexcop_usb_request_t req, flexcop_usb_mem_page_t page_start,
180		u32 addr, int extended, u8 *buf, u32 len)
181{
182	int i, ret = 0;
183	u16 wMax;
184	u32 pagechunk = 0;
185
186	switch (req) {
187	case B2C2_USB_READ_V8_MEM:
188		wMax = USB_MEM_READ_MAX;
189		break;
190	case B2C2_USB_WRITE_V8_MEM:
191		wMax = USB_MEM_WRITE_MAX;
192		break;
193	case B2C2_USB_FLASH_BLOCK:
194		wMax = USB_FLASH_MAX;
195		break;
196	default:
197		return -EINVAL;
198	}
199	for (i = 0; i < len;) {
200		pagechunk =
201			wMax < bytes_left_to_read_on_page(addr, len) ?
202				wMax :
203				bytes_left_to_read_on_page(addr, len);
204		deb_info("%x\n",
205			(addr & V8_MEMORY_PAGE_MASK) |
206				(V8_MEMORY_EXTENDED*extended));
207
208		ret = flexcop_usb_v8_memory_req(fc_usb, req,
209			page_start + (addr / V8_MEMORY_PAGE_SIZE),
210			(addr & V8_MEMORY_PAGE_MASK) |
211				(V8_MEMORY_EXTENDED*extended),
212			&buf[i], pagechunk);
213
214		if (ret < 0)
215			return ret;
216		addr += pagechunk;
217		len -= pagechunk;
218	}
219	return 0;
220}
221
222static int flexcop_usb_get_mac_addr(struct flexcop_device *fc, int extended)
223{
224	return flexcop_usb_memory_req(fc->bus_specific, B2C2_USB_READ_V8_MEM,
225		V8_MEMORY_PAGE_FLASH, 0x1f010, 1,
226		fc->dvb_adapter.proposed_mac, 6);
227}
228
229/* usb i2c stuff */
230static int flexcop_usb_i2c_req(struct flexcop_i2c_adapter *i2c,
231		flexcop_usb_request_t req, flexcop_usb_i2c_function_t func,
232		u8 chipaddr, u8 addr, u8 *buf, u8 buflen)
233{
234	struct flexcop_usb *fc_usb = i2c->fc->bus_specific;
235	u16 wValue, wIndex;
236	int nWaitTime, pipe, ret;
237	u8 request_type = USB_TYPE_VENDOR;
238
239	if (buflen > sizeof(fc_usb->data)) {
240		err("Buffer size bigger than max URB control message\n");
241		return -EIO;
242	}
243
244	switch (func) {
245	case USB_FUNC_I2C_WRITE:
246	case USB_FUNC_I2C_MULTIWRITE:
247	case USB_FUNC_I2C_REPEATWRITE:
248		/* DKT 020208 - add this to support special case of DiSEqC */
249	case USB_FUNC_I2C_CHECKWRITE:
250		pipe = B2C2_USB_CTRL_PIPE_OUT;
251		nWaitTime = 2000;
252		request_type |= USB_DIR_OUT;
253		break;
254	case USB_FUNC_I2C_READ:
255	case USB_FUNC_I2C_REPEATREAD:
256		pipe = B2C2_USB_CTRL_PIPE_IN;
257		nWaitTime = 2000;
258		request_type |= USB_DIR_IN;
259		break;
260	default:
261		deb_info("unsupported function for i2c_req %x\n", func);
262		return -EINVAL;
263	}
264	wValue = (func << 8) | (i2c->port << 4);
265	wIndex = (chipaddr << 8 ) | addr;
266
267	deb_i2c("i2c %2d: %02x %02x %02x %02x %02x %02x\n",
268			func, request_type, req,
269			wValue & 0xff, wValue >> 8,
270			wIndex & 0xff, wIndex >> 8);
271
272	mutex_lock(&fc_usb->data_mutex);
273
274	if ((request_type & USB_ENDPOINT_DIR_MASK) == USB_DIR_OUT)
275		memcpy(fc_usb->data, buf, buflen);
276
277	ret = usb_control_msg(fc_usb->udev, pipe,
278			req,
279			request_type,
280			wValue,
281			wIndex,
282			fc_usb->data,
283			buflen,
284			nWaitTime);
285
286	if (ret != buflen)
287		ret = -EIO;
288
289	if (ret >= 0) {
290		ret = 0;
291		if ((request_type & USB_ENDPOINT_DIR_MASK) == USB_DIR_IN)
292			memcpy(buf, fc_usb->data, buflen);
293	}
294
295	mutex_unlock(&fc_usb->data_mutex);
296
297	return ret;
298}
299
300/* actual bus specific access functions,
301   make sure prototype are/will be equal to pci */
302static flexcop_ibi_value flexcop_usb_read_ibi_reg(struct flexcop_device *fc,
303	flexcop_ibi_register reg)
304{
305	flexcop_ibi_value val;
306	val.raw = 0;
307	flexcop_usb_readwrite_dw(fc, reg, &val.raw, 1);
308	return val;
309}
310
311static int flexcop_usb_write_ibi_reg(struct flexcop_device *fc,
312		flexcop_ibi_register reg, flexcop_ibi_value val)
313{
314	return flexcop_usb_readwrite_dw(fc, reg, &val.raw, 0);
315}
316
317static int flexcop_usb_i2c_request(struct flexcop_i2c_adapter *i2c,
318		flexcop_access_op_t op, u8 chipaddr, u8 addr, u8 *buf, u16 len)
319{
320	if (op == FC_READ)
321		return flexcop_usb_i2c_req(i2c, B2C2_USB_I2C_REQUEST,
322				USB_FUNC_I2C_READ, chipaddr, addr, buf, len);
323	else
324		return flexcop_usb_i2c_req(i2c, B2C2_USB_I2C_REQUEST,
325				USB_FUNC_I2C_WRITE, chipaddr, addr, buf, len);
326}
327
328static void flexcop_usb_process_frame(struct flexcop_usb *fc_usb,
329	u8 *buffer, int buffer_length)
330{
331	u8 *b;
332	int l;
333
334	deb_ts("tmp_buffer_length=%d, buffer_length=%d\n",
335		fc_usb->tmp_buffer_length, buffer_length);
336
337	if (fc_usb->tmp_buffer_length > 0) {
338		memcpy(fc_usb->tmp_buffer+fc_usb->tmp_buffer_length, buffer,
339				buffer_length);
340		fc_usb->tmp_buffer_length += buffer_length;
341		b = fc_usb->tmp_buffer;
342		l = fc_usb->tmp_buffer_length;
343	} else {
344		b = buffer;
345		l = buffer_length;
346	}
347
348	while (l >= 190) {
349		if (*b == 0xff) {
350			switch (*(b+1) & 0x03) {
351			case 0x01: /* media packet */
352				if (*(b+2) == 0x47)
353					flexcop_pass_dmx_packets(
354							fc_usb->fc_dev, b+2, 1);
355				else
356					deb_ts("not ts packet %*ph\n", 4, b+2);
357				b += 190;
358				l -= 190;
359				break;
360			default:
361				deb_ts("wrong packet type\n");
362				l = 0;
363				break;
364			}
365		} else {
366			deb_ts("wrong header\n");
367			l = 0;
368		}
369	}
370
371	if (l > 0)
372		memcpy(fc_usb->tmp_buffer, b, l);
373	fc_usb->tmp_buffer_length = l;
374}
375
376static void flexcop_usb_urb_complete(struct urb *urb)
377{
378	struct flexcop_usb *fc_usb = urb->context;
379	int i;
380
381	if (urb->actual_length > 0)
382		deb_ts("urb completed, bufsize: %d actlen; %d\n",
383			urb->transfer_buffer_length, urb->actual_length);
384
385	for (i = 0; i < urb->number_of_packets; i++) {
386		if (urb->iso_frame_desc[i].status < 0) {
387			err("iso frame descriptor %d has an error: %d\n", i,
388				urb->iso_frame_desc[i].status);
389		} else
390			if (urb->iso_frame_desc[i].actual_length > 0) {
391				deb_ts("passed %d bytes to the demux\n",
392					urb->iso_frame_desc[i].actual_length);
393
394				flexcop_usb_process_frame(fc_usb,
395					urb->transfer_buffer +
396						urb->iso_frame_desc[i].offset,
397					urb->iso_frame_desc[i].actual_length);
398			}
399		urb->iso_frame_desc[i].status = 0;
400		urb->iso_frame_desc[i].actual_length = 0;
401	}
402	usb_submit_urb(urb, GFP_ATOMIC);
403}
404
405static int flexcop_usb_stream_control(struct flexcop_device *fc, int onoff)
406{
407	/* submit/kill iso packets */
408	return 0;
409}
410
411static void flexcop_usb_transfer_exit(struct flexcop_usb *fc_usb)
412{
413	int i;
414	for (i = 0; i < B2C2_USB_NUM_ISO_URB; i++)
415		if (fc_usb->iso_urb[i] != NULL) {
416			deb_ts("unlinking/killing urb no. %d\n", i);
417			usb_kill_urb(fc_usb->iso_urb[i]);
418			usb_free_urb(fc_usb->iso_urb[i]);
419		}
420
421	usb_free_coherent(fc_usb->udev, fc_usb->buffer_size,
422			  fc_usb->iso_buffer, fc_usb->dma_addr);
423
424}
425
426static int flexcop_usb_transfer_init(struct flexcop_usb *fc_usb)
427{
428	struct usb_host_interface *alt = fc_usb->uintf->cur_altsetting;
429	u16 frame_size;
430	int bufsize, i, j, ret;
431	int buffer_offset = 0;
432
433	frame_size = usb_endpoint_maxp(&alt->endpoint[0].desc);
434	bufsize = B2C2_USB_NUM_ISO_URB * B2C2_USB_FRAMES_PER_ISO * frame_size;
435
436	deb_ts("creating %d iso-urbs with %d frames each of %d bytes size = %d.\n",
437	       B2C2_USB_NUM_ISO_URB,
438			B2C2_USB_FRAMES_PER_ISO, frame_size, bufsize);
439
440	fc_usb->iso_buffer = usb_alloc_coherent(fc_usb->udev,
441			bufsize, GFP_KERNEL, &fc_usb->dma_addr);
442	if (fc_usb->iso_buffer == NULL)
443		return -ENOMEM;
444
445	memset(fc_usb->iso_buffer, 0, bufsize);
446	fc_usb->buffer_size = bufsize;
447
448	/* creating iso urbs */
449	for (i = 0; i < B2C2_USB_NUM_ISO_URB; i++) {
450		fc_usb->iso_urb[i] = usb_alloc_urb(B2C2_USB_FRAMES_PER_ISO,
451			GFP_ATOMIC);
452		if (fc_usb->iso_urb[i] == NULL) {
453			ret = -ENOMEM;
454			goto urb_error;
455		}
456	}
457
458	/* initialising and submitting iso urbs */
459	for (i = 0; i < B2C2_USB_NUM_ISO_URB; i++) {
460		int frame_offset = 0;
461		struct urb *urb = fc_usb->iso_urb[i];
462		deb_ts("initializing and submitting urb no. %d (buf_offset: %d).\n",
463		       i, buffer_offset);
464
465		urb->dev = fc_usb->udev;
466		urb->context = fc_usb;
467		urb->complete = flexcop_usb_urb_complete;
468		urb->pipe = B2C2_USB_DATA_PIPE;
469		urb->transfer_flags = URB_ISO_ASAP;
470		urb->interval = 1;
471		urb->number_of_packets = B2C2_USB_FRAMES_PER_ISO;
472		urb->transfer_buffer_length = frame_size * B2C2_USB_FRAMES_PER_ISO;
473		urb->transfer_buffer = fc_usb->iso_buffer + buffer_offset;
474
475		buffer_offset += frame_size * B2C2_USB_FRAMES_PER_ISO;
476		for (j = 0; j < B2C2_USB_FRAMES_PER_ISO; j++) {
477			deb_ts("urb no: %d, frame: %d, frame_offset: %d\n",
478					i, j, frame_offset);
479			urb->iso_frame_desc[j].offset = frame_offset;
480			urb->iso_frame_desc[j].length = frame_size;
481			frame_offset += frame_size;
482		}
483
484		if ((ret = usb_submit_urb(fc_usb->iso_urb[i],GFP_ATOMIC))) {
485			err("submitting urb %d failed with %d.", i, ret);
486			goto urb_error;
487		}
488		deb_ts("submitted urb no. %d.\n", i);
489	}
490
491	/* SRAM */
492	flexcop_sram_set_dest(fc_usb->fc_dev, FC_SRAM_DEST_MEDIA |
493			FC_SRAM_DEST_NET | FC_SRAM_DEST_CAO | FC_SRAM_DEST_CAI,
494			FC_SRAM_DEST_TARGET_WAN_USB);
495	flexcop_wan_set_speed(fc_usb->fc_dev, FC_WAN_SPEED_8MBITS);
496	flexcop_sram_ctrl(fc_usb->fc_dev, 1, 1, 1);
497	return 0;
498
499urb_error:
500	flexcop_usb_transfer_exit(fc_usb);
501	return ret;
502}
503
504static int flexcop_usb_init(struct flexcop_usb *fc_usb)
505{
506	struct usb_host_interface *alt;
507	int ret;
508
509	/* use the alternate setting with the largest buffer */
510	ret = usb_set_interface(fc_usb->udev, 0, 1);
511	if (ret) {
512		err("set interface failed.");
513		return ret;
514	}
515
516	alt = fc_usb->uintf->cur_altsetting;
517
518	if (alt->desc.bNumEndpoints < 1)
519		return -ENODEV;
520	if (!usb_endpoint_is_isoc_in(&alt->endpoint[0].desc))
521		return -ENODEV;
522
523	switch (fc_usb->udev->speed) {
524	case USB_SPEED_LOW:
525		err("cannot handle USB speed because it is too slow.");
526		return -ENODEV;
527		break;
528	case USB_SPEED_FULL:
529		info("running at FULL speed.");
530		break;
531	case USB_SPEED_HIGH:
532		info("running at HIGH speed.");
533		break;
534	case USB_SPEED_UNKNOWN:
535	default:
536		err("cannot handle USB speed because it is unknown.");
537		return -ENODEV;
538	}
539	usb_set_intfdata(fc_usb->uintf, fc_usb);
540	return 0;
541}
542
543static void flexcop_usb_exit(struct flexcop_usb *fc_usb)
544{
545	usb_set_intfdata(fc_usb->uintf, NULL);
546}
547
548static int flexcop_usb_probe(struct usb_interface *intf,
549		const struct usb_device_id *id)
550{
551	struct usb_device *udev = interface_to_usbdev(intf);
552	struct flexcop_usb *fc_usb = NULL;
553	struct flexcop_device *fc = NULL;
554	int ret;
555
556	if ((fc = flexcop_device_kmalloc(sizeof(struct flexcop_usb))) == NULL) {
557		err("out of memory\n");
558		return -ENOMEM;
559	}
560
561	/* general flexcop init */
562	fc_usb = fc->bus_specific;
563	fc_usb->fc_dev = fc;
564	mutex_init(&fc_usb->data_mutex);
565
566	fc->read_ibi_reg  = flexcop_usb_read_ibi_reg;
567	fc->write_ibi_reg = flexcop_usb_write_ibi_reg;
568	fc->i2c_request = flexcop_usb_i2c_request;
569	fc->get_mac_addr = flexcop_usb_get_mac_addr;
570
571	fc->stream_control = flexcop_usb_stream_control;
572
573	fc->pid_filtering = 1;
574	fc->bus_type = FC_USB;
575
576	fc->dev = &udev->dev;
577	fc->owner = THIS_MODULE;
578
579	/* bus specific part */
580	fc_usb->udev = udev;
581	fc_usb->uintf = intf;
582	if ((ret = flexcop_usb_init(fc_usb)) != 0)
583		goto err_kfree;
584
585	/* init flexcop */
586	if ((ret = flexcop_device_initialize(fc)) != 0)
587		goto err_usb_exit;
588
589	/* xfer init */
590	if ((ret = flexcop_usb_transfer_init(fc_usb)) != 0)
591		goto err_fc_exit;
592
593	info("%s successfully initialized and connected.", DRIVER_NAME);
594	return 0;
595
596err_fc_exit:
597	flexcop_device_exit(fc);
598err_usb_exit:
599	flexcop_usb_exit(fc_usb);
600err_kfree:
601	flexcop_device_kfree(fc);
602	return ret;
603}
604
605static void flexcop_usb_disconnect(struct usb_interface *intf)
606{
607	struct flexcop_usb *fc_usb = usb_get_intfdata(intf);
608	flexcop_usb_transfer_exit(fc_usb);
609	flexcop_device_exit(fc_usb->fc_dev);
610	flexcop_usb_exit(fc_usb);
611	flexcop_device_kfree(fc_usb->fc_dev);
612	info("%s successfully deinitialized and disconnected.", DRIVER_NAME);
613}
614
615static const struct usb_device_id flexcop_usb_table[] = {
616	{ USB_DEVICE(0x0af7, 0x0101) },
617	{ }
618};
619MODULE_DEVICE_TABLE (usb, flexcop_usb_table);
620
621/* usb specific object needed to register this driver with the usb subsystem */
622static struct usb_driver flexcop_usb_driver = {
623	.name		= "b2c2_flexcop_usb",
624	.probe		= flexcop_usb_probe,
625	.disconnect = flexcop_usb_disconnect,
626	.id_table	= flexcop_usb_table,
627};
628
629module_usb_driver(flexcop_usb_driver);
630
631MODULE_AUTHOR(DRIVER_AUTHOR);
632MODULE_DESCRIPTION(DRIVER_NAME);
633MODULE_LICENSE("GPL");
634