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Commit | Line | Data |
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f2242ee5 | 1 | /* |
1ff16c20 | 2 | * usbvision_i2c.c |
781aa1d1 MCC |
3 | * i2c algorithm for USB-I2C Bridges |
4 | * | |
1ff16c20 | 5 | * Copyright (c) 1999-2007 Joerg Heckenbach <joerg@heckenbach-aw.de> |
781aa1d1 MCC |
6 | * Dwaine Garden <dwainegarden@rogers.com> |
7 | * | |
8 | * This module is part of usbvision driver project. | |
9 | * Updates to driver completed by Dwaine P. Garden | |
10 | * | |
11 | * This program is free software; you can redistribute it and/or modify | |
12 | * it under the terms of the GNU General Public License as published by | |
13 | * the Free Software Foundation; either version 2 of the License, or | |
14 | * (at your option) any later version. | |
15 | * | |
16 | * This program is distributed in the hope that it will be useful, | |
17 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
18 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
19 | * GNU General Public License for more details. | |
20 | * | |
21 | * You should have received a copy of the GNU General Public License | |
22 | * along with this program; if not, write to the Free Software | |
23 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
24 | */ | |
25 | ||
26 | ||
27 | #include <linux/kernel.h> | |
28 | #include <linux/module.h> | |
29 | #include <linux/delay.h> | |
30 | #include <linux/slab.h> | |
31 | #include <linux/version.h> | |
a1ed551c | 32 | #include <linux/utsname.h> |
781aa1d1 MCC |
33 | #include <linux/init.h> |
34 | #include <asm/uaccess.h> | |
35 | #include <linux/ioport.h> | |
36 | #include <linux/errno.h> | |
781aa1d1 MCC |
37 | #include <linux/usb.h> |
38 | #include <linux/i2c.h> | |
483dfdb6 | 39 | #include "usbvision.h" |
781aa1d1 | 40 | |
483dfdb6 | 41 | #define DBG_I2C 1<<0 |
781aa1d1 | 42 | |
ff699e6b | 43 | static int i2c_debug; |
483dfdb6 TM |
44 | |
45 | module_param (i2c_debug, int, 0644); // debug_i2c_usb mode of the device driver | |
46 | MODULE_PARM_DESC(i2c_debug, "enable debug messages [i2c]"); | |
781aa1d1 | 47 | |
df18c319 TM |
48 | #define PDEBUG(level, fmt, args...) { \ |
49 | if (i2c_debug & (level)) \ | |
a482f327 GKH |
50 | printk(KERN_INFO KBUILD_MODNAME ":[%s:%d] " fmt, \ |
51 | __func__, __LINE__ , ## args); \ | |
df18c319 | 52 | } |
781aa1d1 | 53 | |
1ff16c20 | 54 | static int usbvision_i2c_write(struct usb_usbvision *usbvision, unsigned char addr, char *buf, |
2a7e9a26 | 55 | short len); |
1ff16c20 | 56 | static int usbvision_i2c_read(struct usb_usbvision *usbvision, unsigned char addr, char *buf, |
2a7e9a26 MCC |
57 | short len); |
58 | ||
781aa1d1 MCC |
59 | static inline int try_write_address(struct i2c_adapter *i2c_adap, |
60 | unsigned char addr, int retries) | |
61 | { | |
1ff16c20 | 62 | struct usb_usbvision *usbvision; |
781aa1d1 MCC |
63 | int i, ret = -1; |
64 | char buf[4]; | |
65 | ||
bf8b20e1 | 66 | usbvision = (struct usb_usbvision *)i2c_get_adapdata(i2c_adap); |
781aa1d1 MCC |
67 | buf[0] = 0x00; |
68 | for (i = 0; i <= retries; i++) { | |
1ff16c20 | 69 | ret = (usbvision_i2c_write(usbvision, addr, buf, 1)); |
781aa1d1 MCC |
70 | if (ret == 1) |
71 | break; /* success! */ | |
c6268461 | 72 | udelay(5); |
781aa1d1 MCC |
73 | if (i == retries) /* no success */ |
74 | break; | |
c6268461 | 75 | udelay(10); |
781aa1d1 | 76 | } |
483dfdb6 | 77 | if (i) { |
1ff16c20 TM |
78 | PDEBUG(DBG_I2C,"Needed %d retries for address %#2x", i, addr); |
79 | PDEBUG(DBG_I2C,"Maybe there's no device at this address"); | |
781aa1d1 MCC |
80 | } |
81 | return ret; | |
82 | } | |
83 | ||
84 | static inline int try_read_address(struct i2c_adapter *i2c_adap, | |
85 | unsigned char addr, int retries) | |
86 | { | |
1ff16c20 | 87 | struct usb_usbvision *usbvision; |
781aa1d1 MCC |
88 | int i, ret = -1; |
89 | char buf[4]; | |
90 | ||
bf8b20e1 | 91 | usbvision = (struct usb_usbvision *)i2c_get_adapdata(i2c_adap); |
781aa1d1 | 92 | for (i = 0; i <= retries; i++) { |
1ff16c20 | 93 | ret = (usbvision_i2c_read(usbvision, addr, buf, 1)); |
781aa1d1 MCC |
94 | if (ret == 1) |
95 | break; /* success! */ | |
c6268461 | 96 | udelay(5); |
781aa1d1 MCC |
97 | if (i == retries) /* no success */ |
98 | break; | |
c6268461 | 99 | udelay(10); |
781aa1d1 | 100 | } |
483dfdb6 | 101 | if (i) { |
1ff16c20 TM |
102 | PDEBUG(DBG_I2C,"Needed %d retries for address %#2x", i, addr); |
103 | PDEBUG(DBG_I2C,"Maybe there's no device at this address"); | |
781aa1d1 MCC |
104 | } |
105 | return ret; | |
106 | } | |
107 | ||
108 | static inline int usb_find_address(struct i2c_adapter *i2c_adap, | |
109 | struct i2c_msg *msg, int retries, | |
110 | unsigned char *add) | |
111 | { | |
112 | unsigned short flags = msg->flags; | |
f2242ee5 | 113 | |
781aa1d1 MCC |
114 | unsigned char addr; |
115 | int ret; | |
116 | if ((flags & I2C_M_TEN)) { | |
117 | /* a ten bit address */ | |
118 | addr = 0xf0 | ((msg->addr >> 7) & 0x03); | |
119 | /* try extended address code... */ | |
120 | ret = try_write_address(i2c_adap, addr, retries); | |
121 | if (ret != 1) { | |
122 | err("died at extended address code, while writing"); | |
123 | return -EREMOTEIO; | |
124 | } | |
125 | add[0] = addr; | |
126 | if (flags & I2C_M_RD) { | |
127 | /* okay, now switch into reading mode */ | |
128 | addr |= 0x01; | |
129 | ret = try_read_address(i2c_adap, addr, retries); | |
130 | if (ret != 1) { | |
131 | err("died at extended address code, while reading"); | |
132 | return -EREMOTEIO; | |
133 | } | |
134 | } | |
135 | ||
136 | } else { /* normal 7bit address */ | |
137 | addr = (msg->addr << 1); | |
138 | if (flags & I2C_M_RD) | |
139 | addr |= 1; | |
781aa1d1 MCC |
140 | |
141 | add[0] = addr; | |
142 | if (flags & I2C_M_RD) | |
143 | ret = try_read_address(i2c_adap, addr, retries); | |
144 | else | |
145 | ret = try_write_address(i2c_adap, addr, retries); | |
146 | ||
147 | if (ret != 1) { | |
148 | return -EREMOTEIO; | |
149 | } | |
150 | } | |
151 | return 0; | |
152 | } | |
153 | ||
154 | static int | |
1ff16c20 | 155 | usbvision_i2c_xfer(struct i2c_adapter *i2c_adap, struct i2c_msg msgs[], int num) |
781aa1d1 MCC |
156 | { |
157 | struct i2c_msg *pmsg; | |
1ff16c20 | 158 | struct usb_usbvision *usbvision; |
781aa1d1 MCC |
159 | int i, ret; |
160 | unsigned char addr; | |
161 | ||
bf8b20e1 TM |
162 | usbvision = (struct usb_usbvision *)i2c_get_adapdata(i2c_adap); |
163 | ||
781aa1d1 MCC |
164 | for (i = 0; i < num; i++) { |
165 | pmsg = &msgs[i]; | |
166 | ret = usb_find_address(i2c_adap, pmsg, i2c_adap->retries, &addr); | |
167 | if (ret != 0) { | |
1ff16c20 | 168 | PDEBUG(DBG_I2C,"got NAK from device, message #%d", i); |
781aa1d1 MCC |
169 | return (ret < 0) ? ret : -EREMOTEIO; |
170 | } | |
171 | ||
172 | if (pmsg->flags & I2C_M_RD) { | |
173 | /* read bytes into buffer */ | |
1ff16c20 | 174 | ret = (usbvision_i2c_read(usbvision, addr, pmsg->buf, pmsg->len)); |
781aa1d1 MCC |
175 | if (ret < pmsg->len) { |
176 | return (ret < 0) ? ret : -EREMOTEIO; | |
177 | } | |
178 | } else { | |
179 | /* write bytes from buffer */ | |
1ff16c20 | 180 | ret = (usbvision_i2c_write(usbvision, addr, pmsg->buf, pmsg->len)); |
781aa1d1 MCC |
181 | if (ret < pmsg->len) { |
182 | return (ret < 0) ? ret : -EREMOTEIO; | |
183 | } | |
184 | } | |
185 | } | |
186 | return num; | |
187 | } | |
188 | ||
1ff16c20 | 189 | static u32 functionality(struct i2c_adapter *adap) |
781aa1d1 | 190 | { |
39f46ade | 191 | return I2C_FUNC_SMBUS_EMUL | I2C_FUNC_10BIT_ADDR; |
781aa1d1 MCC |
192 | } |
193 | ||
781aa1d1 MCC |
194 | /* -----exported algorithm data: ------------------------------------- */ |
195 | ||
1ff16c20 TM |
196 | static struct i2c_algorithm usbvision_algo = { |
197 | .master_xfer = usbvision_i2c_xfer, | |
781aa1d1 | 198 | .smbus_xfer = NULL, |
1ff16c20 | 199 | .functionality = functionality, |
781aa1d1 MCC |
200 | }; |
201 | ||
202 | ||
bf8b20e1 TM |
203 | /* |
204 | * registering functions to load algorithms at runtime | |
205 | */ | |
206 | static int usbvision_i2c_usb_add_bus(struct i2c_adapter *adap) | |
207 | { | |
208 | PDEBUG(DBG_I2C, "I2C debugging is enabled [i2c]"); | |
209 | PDEBUG(DBG_I2C, "ALGO debugging is enabled [i2c]"); | |
210 | ||
211 | /* register new adapter to i2c module... */ | |
212 | ||
213 | adap->algo = &usbvision_algo; | |
214 | ||
215 | adap->timeout = 100; /* default values, should */ | |
216 | adap->retries = 3; /* be replaced by defines */ | |
217 | ||
218 | i2c_add_adapter(adap); | |
219 | ||
220 | PDEBUG(DBG_I2C,"i2c bus for %s registered", adap->name); | |
221 | ||
222 | return 0; | |
223 | } | |
224 | ||
483dfdb6 TM |
225 | /* ----------------------------------------------------------------------- */ |
226 | /* usbvision specific I2C functions */ | |
227 | /* ----------------------------------------------------------------------- */ | |
228 | static struct i2c_adapter i2c_adap_template; | |
483dfdb6 TM |
229 | static struct i2c_client i2c_client_template; |
230 | ||
1ff16c20 | 231 | int usbvision_i2c_register(struct usb_usbvision *usbvision) |
483dfdb6 | 232 | { |
bf8b20e1 TM |
233 | memcpy(&usbvision->i2c_adap, &i2c_adap_template, |
234 | sizeof(struct i2c_adapter)); | |
235 | memcpy(&usbvision->i2c_client, &i2c_client_template, | |
236 | sizeof(struct i2c_client)); | |
483dfdb6 | 237 | |
1ff16c20 TM |
238 | sprintf(usbvision->i2c_adap.name + strlen(usbvision->i2c_adap.name), |
239 | " #%d", usbvision->vdev->minor & 0x1f); | |
bf8b20e1 TM |
240 | PDEBUG(DBG_I2C,"Adaptername: %s", usbvision->i2c_adap.name); |
241 | usbvision->i2c_adap.dev.parent = &usbvision->dev->dev; | |
242 | ||
243 | i2c_set_adapdata(&usbvision->i2c_adap, usbvision); | |
244 | i2c_set_clientdata(&usbvision->i2c_client, usbvision); | |
1ff16c20 | 245 | |
483dfdb6 TM |
246 | usbvision->i2c_client.adapter = &usbvision->i2c_adap; |
247 | ||
248 | if (usbvision_write_reg(usbvision, USBVISION_SER_MODE, USBVISION_IIC_LRNACK) < 0) { | |
bf8b20e1 | 249 | printk(KERN_ERR "usbvision_register: can't write reg\n"); |
483dfdb6 TM |
250 | return -EBUSY; |
251 | } | |
252 | ||
253 | #ifdef CONFIG_MODULES | |
254 | /* Request the load of the i2c modules we need */ | |
255 | switch (usbvision_device_data[usbvision->DevModel].Codec) { | |
256 | case CODEC_SAA7113: | |
257 | request_module("saa7115"); | |
258 | break; | |
259 | case CODEC_SAA7111: | |
260 | request_module("saa7115"); | |
261 | break; | |
262 | } | |
263 | if (usbvision_device_data[usbvision->DevModel].Tuner == 1) { | |
264 | request_module("tuner"); | |
781aa1d1 | 265 | } |
781aa1d1 MCC |
266 | #endif |
267 | ||
bf8b20e1 | 268 | return usbvision_i2c_usb_add_bus(&usbvision->i2c_adap); |
1ff16c20 TM |
269 | } |
270 | ||
271 | int usbvision_i2c_unregister(struct usb_usbvision *usbvision) | |
272 | { | |
273 | ||
274 | i2c_del_adapter(&(usbvision->i2c_adap)); | |
275 | ||
276 | PDEBUG(DBG_I2C,"i2c bus for %s unregistered", usbvision->i2c_adap.name); | |
277 | ||
278 | return 0; | |
483dfdb6 TM |
279 | } |
280 | ||
281 | void call_i2c_clients(struct usb_usbvision *usbvision, unsigned int cmd, | |
282 | void *arg) | |
283 | { | |
483dfdb6 TM |
284 | i2c_clients_command(&usbvision->i2c_adap, cmd, arg); |
285 | } | |
286 | ||
287 | static int attach_inform(struct i2c_client *client) | |
288 | { | |
289 | struct usb_usbvision *usbvision; | |
290 | ||
bf8b20e1 TM |
291 | usbvision = (struct usb_usbvision *)i2c_get_adapdata(client->adapter); |
292 | ||
483dfdb6 | 293 | switch (client->addr << 1) { |
3153bd91 TP |
294 | case 0x42 << 1: |
295 | case 0x43 << 1: | |
296 | case 0x4a << 1: | |
297 | case 0x4b << 1: | |
6284feaf | 298 | PDEBUG(DBG_I2C,"attach_inform: tda9887 detected."); |
483dfdb6 | 299 | break; |
483dfdb6 TM |
300 | case 0x42: |
301 | PDEBUG(DBG_I2C,"attach_inform: saa7114 detected."); | |
302 | break; | |
303 | case 0x4a: | |
304 | PDEBUG(DBG_I2C,"attach_inform: saa7113 detected."); | |
305 | break; | |
38284ba3 TM |
306 | case 0x48: |
307 | PDEBUG(DBG_I2C,"attach_inform: saa7111 detected."); | |
308 | break; | |
483dfdb6 TM |
309 | case 0xa0: |
310 | PDEBUG(DBG_I2C,"attach_inform: eeprom detected."); | |
311 | break; | |
312 | ||
313 | default: | |
314 | { | |
315 | struct tuner_setup tun_setup; | |
316 | ||
317 | PDEBUG(DBG_I2C,"attach inform: detected I2C address %x", client->addr << 1); | |
318 | usbvision->tuner_addr = client->addr; | |
319 | ||
320 | if ((usbvision->have_tuner) && (usbvision->tuner_type != -1)) { | |
321 | tun_setup.mode_mask = T_ANALOG_TV | T_RADIO; | |
322 | tun_setup.type = usbvision->tuner_type; | |
323 | tun_setup.addr = usbvision->tuner_addr; | |
324 | call_i2c_clients(usbvision, TUNER_SET_TYPE_ADDR, &tun_setup); | |
325 | } | |
326 | } | |
327 | break; | |
328 | } | |
781aa1d1 MCC |
329 | return 0; |
330 | } | |
331 | ||
483dfdb6 TM |
332 | static int detach_inform(struct i2c_client *client) |
333 | { | |
334 | struct usb_usbvision *usbvision; | |
335 | ||
bf8b20e1 | 336 | usbvision = (struct usb_usbvision *)i2c_get_adapdata(client->adapter); |
483dfdb6 | 337 | |
a1ed551c | 338 | PDEBUG(DBG_I2C,"usbvision[%d] detaches %s", usbvision->nr, client->name); |
483dfdb6 TM |
339 | return 0; |
340 | } | |
341 | ||
342 | static int | |
343 | usbvision_i2c_read_max4(struct usb_usbvision *usbvision, unsigned char addr, | |
344 | char *buf, short len) | |
345 | { | |
346 | int rc, retries; | |
347 | ||
348 | for (retries = 5;;) { | |
349 | rc = usbvision_write_reg(usbvision, USBVISION_SER_ADRS, addr); | |
350 | if (rc < 0) | |
351 | return rc; | |
352 | ||
353 | /* Initiate byte read cycle */ | |
354 | /* USBVISION_SER_CONT <- d0-d2 n. of bytes to r/w */ | |
355 | /* d3 0=Wr 1=Rd */ | |
356 | rc = usbvision_write_reg(usbvision, USBVISION_SER_CONT, | |
357 | (len & 0x07) | 0x18); | |
358 | if (rc < 0) | |
359 | return rc; | |
360 | ||
361 | /* Test for Busy and ACK */ | |
362 | do { | |
363 | /* USBVISION_SER_CONT -> d4 == 0 busy */ | |
364 | rc = usbvision_read_reg(usbvision, USBVISION_SER_CONT); | |
365 | } while (rc > 0 && ((rc & 0x10) != 0)); /* Retry while busy */ | |
366 | if (rc < 0) | |
367 | return rc; | |
368 | ||
369 | /* USBVISION_SER_CONT -> d5 == 1 Not ack */ | |
370 | if ((rc & 0x20) == 0) /* Ack? */ | |
371 | break; | |
372 | ||
373 | /* I2C abort */ | |
374 | rc = usbvision_write_reg(usbvision, USBVISION_SER_CONT, 0x00); | |
375 | if (rc < 0) | |
376 | return rc; | |
377 | ||
378 | if (--retries < 0) | |
379 | return -1; | |
380 | } | |
381 | ||
382 | switch (len) { | |
383 | case 4: | |
384 | buf[3] = usbvision_read_reg(usbvision, USBVISION_SER_DAT4); | |
385 | case 3: | |
386 | buf[2] = usbvision_read_reg(usbvision, USBVISION_SER_DAT3); | |
387 | case 2: | |
388 | buf[1] = usbvision_read_reg(usbvision, USBVISION_SER_DAT2); | |
389 | case 1: | |
390 | buf[0] = usbvision_read_reg(usbvision, USBVISION_SER_DAT1); | |
391 | break; | |
392 | default: | |
393 | printk(KERN_ERR | |
394 | "usbvision_i2c_read_max4: buffer length > 4\n"); | |
395 | } | |
396 | ||
397 | if (i2c_debug & DBG_I2C) { | |
398 | int idx; | |
399 | for (idx = 0; idx < len; idx++) { | |
400 | PDEBUG(DBG_I2C,"read %x from address %x", (unsigned char)buf[idx], addr); | |
401 | } | |
402 | } | |
403 | return len; | |
404 | } | |
405 | ||
406 | ||
407 | static int usbvision_i2c_write_max4(struct usb_usbvision *usbvision, | |
408 | unsigned char addr, const char *buf, | |
409 | short len) | |
410 | { | |
411 | int rc, retries; | |
412 | int i; | |
413 | unsigned char value[6]; | |
414 | unsigned char ser_cont; | |
415 | ||
416 | ser_cont = (len & 0x07) | 0x10; | |
417 | ||
418 | value[0] = addr; | |
419 | value[1] = ser_cont; | |
420 | for (i = 0; i < len; i++) | |
421 | value[i + 2] = buf[i]; | |
422 | ||
423 | for (retries = 5;;) { | |
424 | rc = usb_control_msg(usbvision->dev, | |
425 | usb_sndctrlpipe(usbvision->dev, 1), | |
426 | USBVISION_OP_CODE, | |
427 | USB_DIR_OUT | USB_TYPE_VENDOR | | |
428 | USB_RECIP_ENDPOINT, 0, | |
429 | (__u16) USBVISION_SER_ADRS, value, | |
430 | len + 2, HZ); | |
431 | ||
432 | if (rc < 0) | |
433 | return rc; | |
434 | ||
435 | rc = usbvision_write_reg(usbvision, USBVISION_SER_CONT, | |
436 | (len & 0x07) | 0x10); | |
437 | if (rc < 0) | |
438 | return rc; | |
439 | ||
440 | /* Test for Busy and ACK */ | |
441 | do { | |
442 | rc = usbvision_read_reg(usbvision, USBVISION_SER_CONT); | |
443 | } while (rc > 0 && ((rc & 0x10) != 0)); /* Retry while busy */ | |
444 | if (rc < 0) | |
445 | return rc; | |
446 | ||
447 | if ((rc & 0x20) == 0) /* Ack? */ | |
448 | break; | |
449 | ||
450 | /* I2C abort */ | |
451 | usbvision_write_reg(usbvision, USBVISION_SER_CONT, 0x00); | |
452 | ||
453 | if (--retries < 0) | |
454 | return -1; | |
455 | ||
456 | } | |
457 | ||
458 | if (i2c_debug & DBG_I2C) { | |
459 | int idx; | |
460 | for (idx = 0; idx < len; idx++) { | |
461 | PDEBUG(DBG_I2C,"wrote %x at address %x", (unsigned char)buf[idx], addr); | |
462 | } | |
463 | } | |
464 | return len; | |
465 | } | |
466 | ||
1ff16c20 | 467 | static int usbvision_i2c_write(struct usb_usbvision *usbvision, unsigned char addr, char *buf, |
483dfdb6 TM |
468 | short len) |
469 | { | |
470 | char *bufPtr = buf; | |
471 | int retval; | |
472 | int wrcount = 0; | |
473 | int count; | |
474 | int maxLen = 4; | |
483dfdb6 TM |
475 | |
476 | while (len > 0) { | |
477 | count = (len > maxLen) ? maxLen : len; | |
478 | retval = usbvision_i2c_write_max4(usbvision, addr, bufPtr, count); | |
479 | if (retval > 0) { | |
480 | len -= count; | |
481 | bufPtr += count; | |
482 | wrcount += count; | |
483 | } else | |
484 | return (retval < 0) ? retval : -EFAULT; | |
485 | } | |
486 | return wrcount; | |
487 | } | |
488 | ||
1ff16c20 | 489 | static int usbvision_i2c_read(struct usb_usbvision *usbvision, unsigned char addr, char *buf, |
483dfdb6 TM |
490 | short len) |
491 | { | |
492 | char temp[4]; | |
493 | int retval, i; | |
494 | int rdcount = 0; | |
495 | int count; | |
483dfdb6 TM |
496 | |
497 | while (len > 0) { | |
498 | count = (len > 3) ? 4 : len; | |
499 | retval = usbvision_i2c_read_max4(usbvision, addr, temp, count); | |
500 | if (retval > 0) { | |
501 | for (i = 0; i < len; i++) | |
502 | buf[rdcount + i] = temp[i]; | |
503 | len -= count; | |
504 | rdcount += count; | |
505 | } else | |
506 | return (retval < 0) ? retval : -EFAULT; | |
507 | } | |
508 | return rdcount; | |
509 | } | |
510 | ||
483dfdb6 TM |
511 | static struct i2c_adapter i2c_adap_template = { |
512 | .owner = THIS_MODULE, | |
513 | .name = "usbvision", | |
514 | .id = I2C_HW_B_BT848, /* FIXME */ | |
483dfdb6 TM |
515 | .client_register = attach_inform, |
516 | .client_unregister = detach_inform, | |
483dfdb6 | 517 | .class = I2C_CLASS_TV_ANALOG, |
483dfdb6 TM |
518 | }; |
519 | ||
520 | static struct i2c_client i2c_client_template = { | |
521 | .name = "usbvision internal", | |
522 | }; | |
523 | ||
483dfdb6 TM |
524 | /* |
525 | * Overrides for Emacs so that we follow Linus's tabbing style. | |
526 | * --------------------------------------------------------------------------- | |
527 | * Local variables: | |
528 | * c-basic-offset: 8 | |
529 | * End: | |
530 | */ |