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b4c9c1a7 GR |
1 | /* |
2 | * Driver for TI ADC128D818 System Monitor with Temperature Sensor | |
3 | * | |
4 | * Copyright (c) 2014 Guenter Roeck | |
5 | * | |
6 | * Derived from lm80.c | |
7 | * Copyright (C) 1998, 1999 Frodo Looijaard <frodol@dds.nl> | |
8 | * and Philip Edelbrock <phil@netroedge.com> | |
9 | * | |
10 | * This program is free software; you can redistribute it and/or modify | |
11 | * it under the terms of the GNU General Public License as published by | |
12 | * the Free Software Foundation; either version 2 of the License, or | |
13 | * (at your option) any later version. | |
14 | * | |
15 | * This program is distributed in the hope that it will be useful, | |
16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | * GNU General Public License for more details. | |
19 | */ | |
20 | ||
21 | #include <linux/module.h> | |
22 | #include <linux/slab.h> | |
23 | #include <linux/jiffies.h> | |
24 | #include <linux/i2c.h> | |
25 | #include <linux/hwmon.h> | |
26 | #include <linux/hwmon-sysfs.h> | |
27 | #include <linux/err.h> | |
28 | #include <linux/regulator/consumer.h> | |
29 | #include <linux/mutex.h> | |
30 | ||
31 | /* Addresses to scan | |
32 | * The chip also supports addresses 0x35..0x37. Don't scan those addresses | |
33 | * since they are also used by some EEPROMs, which may result in false | |
34 | * positives. | |
35 | */ | |
36 | static const unsigned short normal_i2c[] = { | |
37 | 0x1d, 0x1e, 0x1f, 0x2d, 0x2e, 0x2f, I2C_CLIENT_END }; | |
38 | ||
39 | /* registers */ | |
40 | #define ADC128_REG_IN_MAX(nr) (0x2a + (nr) * 2) | |
41 | #define ADC128_REG_IN_MIN(nr) (0x2b + (nr) * 2) | |
42 | #define ADC128_REG_IN(nr) (0x20 + (nr)) | |
43 | ||
44 | #define ADC128_REG_TEMP 0x27 | |
45 | #define ADC128_REG_TEMP_MAX 0x38 | |
46 | #define ADC128_REG_TEMP_HYST 0x39 | |
47 | ||
48 | #define ADC128_REG_CONFIG 0x00 | |
49 | #define ADC128_REG_ALARM 0x01 | |
50 | #define ADC128_REG_MASK 0x03 | |
51 | #define ADC128_REG_CONV_RATE 0x07 | |
52 | #define ADC128_REG_ONESHOT 0x09 | |
53 | #define ADC128_REG_SHUTDOWN 0x0a | |
54 | #define ADC128_REG_CONFIG_ADV 0x0b | |
55 | #define ADC128_REG_BUSY_STATUS 0x0c | |
56 | ||
57 | #define ADC128_REG_MAN_ID 0x3e | |
58 | #define ADC128_REG_DEV_ID 0x3f | |
59 | ||
60 | struct adc128_data { | |
61 | struct i2c_client *client; | |
62 | struct regulator *regulator; | |
63 | int vref; /* Reference voltage in mV */ | |
64 | struct mutex update_lock; | |
65 | bool valid; /* true if following fields are valid */ | |
66 | unsigned long last_updated; /* In jiffies */ | |
67 | ||
68 | u16 in[3][7]; /* Register value, normalized to 12 bit | |
69 | * 0: input voltage | |
70 | * 1: min limit | |
71 | * 2: max limit | |
72 | */ | |
73 | s16 temp[3]; /* Register value, normalized to 9 bit | |
74 | * 0: sensor 1: limit 2: hyst | |
75 | */ | |
76 | u8 alarms; /* alarm register value */ | |
77 | }; | |
78 | ||
79 | static struct adc128_data *adc128_update_device(struct device *dev) | |
80 | { | |
81 | struct adc128_data *data = dev_get_drvdata(dev); | |
82 | struct i2c_client *client = data->client; | |
83 | struct adc128_data *ret = data; | |
84 | int i, rv; | |
85 | ||
86 | mutex_lock(&data->update_lock); | |
87 | ||
88 | if (time_after(jiffies, data->last_updated + HZ) || !data->valid) { | |
89 | for (i = 0; i < 7; i++) { | |
90 | rv = i2c_smbus_read_word_swapped(client, | |
91 | ADC128_REG_IN(i)); | |
92 | if (rv < 0) | |
93 | goto abort; | |
94 | data->in[0][i] = rv >> 4; | |
95 | ||
96 | rv = i2c_smbus_read_byte_data(client, | |
97 | ADC128_REG_IN_MIN(i)); | |
98 | if (rv < 0) | |
99 | goto abort; | |
100 | data->in[1][i] = rv << 4; | |
101 | ||
102 | rv = i2c_smbus_read_byte_data(client, | |
103 | ADC128_REG_IN_MAX(i)); | |
104 | if (rv < 0) | |
105 | goto abort; | |
106 | data->in[2][i] = rv << 4; | |
107 | } | |
108 | ||
109 | rv = i2c_smbus_read_word_swapped(client, ADC128_REG_TEMP); | |
110 | if (rv < 0) | |
111 | goto abort; | |
112 | data->temp[0] = rv >> 7; | |
113 | ||
114 | rv = i2c_smbus_read_byte_data(client, ADC128_REG_TEMP_MAX); | |
115 | if (rv < 0) | |
116 | goto abort; | |
117 | data->temp[1] = rv << 1; | |
118 | ||
119 | rv = i2c_smbus_read_byte_data(client, ADC128_REG_TEMP_HYST); | |
120 | if (rv < 0) | |
121 | goto abort; | |
122 | data->temp[2] = rv << 1; | |
123 | ||
124 | rv = i2c_smbus_read_byte_data(client, ADC128_REG_ALARM); | |
125 | if (rv < 0) | |
126 | goto abort; | |
127 | data->alarms |= rv; | |
128 | ||
129 | data->last_updated = jiffies; | |
130 | data->valid = true; | |
131 | } | |
132 | goto done; | |
133 | ||
134 | abort: | |
135 | ret = ERR_PTR(rv); | |
136 | data->valid = false; | |
137 | done: | |
138 | mutex_unlock(&data->update_lock); | |
139 | return ret; | |
140 | } | |
141 | ||
142 | static ssize_t adc128_show_in(struct device *dev, struct device_attribute *attr, | |
143 | char *buf) | |
144 | { | |
145 | struct adc128_data *data = adc128_update_device(dev); | |
146 | int index = to_sensor_dev_attr_2(attr)->index; | |
147 | int nr = to_sensor_dev_attr_2(attr)->nr; | |
148 | int val; | |
149 | ||
150 | if (IS_ERR(data)) | |
151 | return PTR_ERR(data); | |
152 | ||
153 | val = DIV_ROUND_CLOSEST(data->in[index][nr] * data->vref, 4095); | |
154 | return sprintf(buf, "%d\n", val); | |
155 | } | |
156 | ||
157 | static ssize_t adc128_set_in(struct device *dev, struct device_attribute *attr, | |
158 | const char *buf, size_t count) | |
159 | { | |
160 | struct adc128_data *data = dev_get_drvdata(dev); | |
161 | int index = to_sensor_dev_attr_2(attr)->index; | |
162 | int nr = to_sensor_dev_attr_2(attr)->nr; | |
163 | u8 reg, regval; | |
164 | long val; | |
165 | int err; | |
166 | ||
167 | err = kstrtol(buf, 10, &val); | |
168 | if (err < 0) | |
169 | return err; | |
170 | ||
171 | mutex_lock(&data->update_lock); | |
172 | /* 10 mV LSB on limit registers */ | |
173 | regval = clamp_val(DIV_ROUND_CLOSEST(val, 10), 0, 255); | |
174 | data->in[index][nr] = regval << 4; | |
175 | reg = index == 1 ? ADC128_REG_IN_MIN(nr) : ADC128_REG_IN_MAX(nr); | |
176 | i2c_smbus_write_byte_data(data->client, reg, regval); | |
177 | mutex_unlock(&data->update_lock); | |
178 | ||
179 | return count; | |
180 | } | |
181 | ||
182 | static ssize_t adc128_show_temp(struct device *dev, | |
183 | struct device_attribute *attr, char *buf) | |
184 | { | |
185 | struct adc128_data *data = adc128_update_device(dev); | |
186 | int index = to_sensor_dev_attr(attr)->index; | |
187 | int temp; | |
188 | ||
189 | if (IS_ERR(data)) | |
190 | return PTR_ERR(data); | |
191 | ||
192 | temp = (data->temp[index] << 7) >> 7; /* sign extend */ | |
193 | return sprintf(buf, "%d\n", temp * 500);/* 0.5 degrees C resolution */ | |
194 | } | |
195 | ||
196 | static ssize_t adc128_set_temp(struct device *dev, | |
197 | struct device_attribute *attr, | |
198 | const char *buf, size_t count) | |
199 | { | |
200 | struct adc128_data *data = dev_get_drvdata(dev); | |
201 | int index = to_sensor_dev_attr(attr)->index; | |
202 | long val; | |
203 | int err; | |
204 | s8 regval; | |
205 | ||
206 | err = kstrtol(buf, 10, &val); | |
207 | if (err < 0) | |
208 | return err; | |
209 | ||
210 | mutex_lock(&data->update_lock); | |
211 | regval = clamp_val(DIV_ROUND_CLOSEST(val, 1000), -128, 127); | |
212 | data->temp[index] = regval << 1; | |
213 | i2c_smbus_write_byte_data(data->client, | |
214 | index == 1 ? ADC128_REG_TEMP_MAX | |
215 | : ADC128_REG_TEMP_HYST, | |
216 | regval); | |
217 | mutex_unlock(&data->update_lock); | |
218 | ||
219 | return count; | |
220 | } | |
221 | ||
222 | static ssize_t adc128_show_alarm(struct device *dev, | |
223 | struct device_attribute *attr, char *buf) | |
224 | { | |
225 | struct adc128_data *data = adc128_update_device(dev); | |
226 | int mask = 1 << to_sensor_dev_attr(attr)->index; | |
227 | u8 alarms; | |
228 | ||
229 | if (IS_ERR(data)) | |
230 | return PTR_ERR(data); | |
231 | ||
232 | /* | |
233 | * Clear an alarm after reporting it to user space. If it is still | |
234 | * active, the next update sequence will set the alarm bit again. | |
235 | */ | |
236 | alarms = data->alarms; | |
237 | data->alarms &= ~mask; | |
238 | ||
239 | return sprintf(buf, "%u\n", !!(alarms & mask)); | |
240 | } | |
241 | ||
7fe7381c GR |
242 | static SENSOR_DEVICE_ATTR_2(in0_input, S_IRUGO, |
243 | adc128_show_in, NULL, 0, 0); | |
b4c9c1a7 GR |
244 | static SENSOR_DEVICE_ATTR_2(in0_min, S_IWUSR | S_IRUGO, |
245 | adc128_show_in, adc128_set_in, 0, 1); | |
246 | static SENSOR_DEVICE_ATTR_2(in0_max, S_IWUSR | S_IRUGO, | |
247 | adc128_show_in, adc128_set_in, 0, 2); | |
248 | ||
7fe7381c GR |
249 | static SENSOR_DEVICE_ATTR_2(in1_input, S_IRUGO, |
250 | adc128_show_in, NULL, 1, 0); | |
b4c9c1a7 GR |
251 | static SENSOR_DEVICE_ATTR_2(in1_min, S_IWUSR | S_IRUGO, |
252 | adc128_show_in, adc128_set_in, 1, 1); | |
253 | static SENSOR_DEVICE_ATTR_2(in1_max, S_IWUSR | S_IRUGO, | |
254 | adc128_show_in, adc128_set_in, 1, 2); | |
255 | ||
7fe7381c GR |
256 | static SENSOR_DEVICE_ATTR_2(in2_input, S_IRUGO, |
257 | adc128_show_in, NULL, 2, 0); | |
b4c9c1a7 GR |
258 | static SENSOR_DEVICE_ATTR_2(in2_min, S_IWUSR | S_IRUGO, |
259 | adc128_show_in, adc128_set_in, 2, 1); | |
260 | static SENSOR_DEVICE_ATTR_2(in2_max, S_IWUSR | S_IRUGO, | |
261 | adc128_show_in, adc128_set_in, 2, 2); | |
262 | ||
7fe7381c GR |
263 | static SENSOR_DEVICE_ATTR_2(in3_input, S_IRUGO, |
264 | adc128_show_in, NULL, 3, 0); | |
b4c9c1a7 GR |
265 | static SENSOR_DEVICE_ATTR_2(in3_min, S_IWUSR | S_IRUGO, |
266 | adc128_show_in, adc128_set_in, 3, 1); | |
267 | static SENSOR_DEVICE_ATTR_2(in3_max, S_IWUSR | S_IRUGO, | |
268 | adc128_show_in, adc128_set_in, 3, 2); | |
269 | ||
7fe7381c GR |
270 | static SENSOR_DEVICE_ATTR_2(in4_input, S_IRUGO, |
271 | adc128_show_in, NULL, 4, 0); | |
b4c9c1a7 GR |
272 | static SENSOR_DEVICE_ATTR_2(in4_min, S_IWUSR | S_IRUGO, |
273 | adc128_show_in, adc128_set_in, 4, 1); | |
274 | static SENSOR_DEVICE_ATTR_2(in4_max, S_IWUSR | S_IRUGO, | |
275 | adc128_show_in, adc128_set_in, 4, 2); | |
276 | ||
7fe7381c GR |
277 | static SENSOR_DEVICE_ATTR_2(in5_input, S_IRUGO, |
278 | adc128_show_in, NULL, 5, 0); | |
b4c9c1a7 GR |
279 | static SENSOR_DEVICE_ATTR_2(in5_min, S_IWUSR | S_IRUGO, |
280 | adc128_show_in, adc128_set_in, 5, 1); | |
281 | static SENSOR_DEVICE_ATTR_2(in5_max, S_IWUSR | S_IRUGO, | |
282 | adc128_show_in, adc128_set_in, 5, 2); | |
283 | ||
7fe7381c GR |
284 | static SENSOR_DEVICE_ATTR_2(in6_input, S_IRUGO, |
285 | adc128_show_in, NULL, 6, 0); | |
b4c9c1a7 GR |
286 | static SENSOR_DEVICE_ATTR_2(in6_min, S_IWUSR | S_IRUGO, |
287 | adc128_show_in, adc128_set_in, 6, 1); | |
288 | static SENSOR_DEVICE_ATTR_2(in6_max, S_IWUSR | S_IRUGO, | |
289 | adc128_show_in, adc128_set_in, 6, 2); | |
290 | ||
291 | static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, adc128_show_temp, NULL, 0); | |
292 | static SENSOR_DEVICE_ATTR(temp1_max, S_IWUSR | S_IRUGO, | |
293 | adc128_show_temp, adc128_set_temp, 1); | |
294 | static SENSOR_DEVICE_ATTR(temp1_max_hyst, S_IWUSR | S_IRUGO, | |
295 | adc128_show_temp, adc128_set_temp, 2); | |
296 | ||
297 | static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, adc128_show_alarm, NULL, 0); | |
298 | static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, adc128_show_alarm, NULL, 1); | |
299 | static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, adc128_show_alarm, NULL, 2); | |
300 | static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, adc128_show_alarm, NULL, 3); | |
301 | static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, adc128_show_alarm, NULL, 4); | |
302 | static SENSOR_DEVICE_ATTR(in5_alarm, S_IRUGO, adc128_show_alarm, NULL, 5); | |
303 | static SENSOR_DEVICE_ATTR(in6_alarm, S_IRUGO, adc128_show_alarm, NULL, 6); | |
304 | static SENSOR_DEVICE_ATTR(temp1_max_alarm, S_IRUGO, adc128_show_alarm, NULL, 7); | |
305 | ||
306 | static struct attribute *adc128_attrs[] = { | |
307 | &sensor_dev_attr_in0_min.dev_attr.attr, | |
308 | &sensor_dev_attr_in1_min.dev_attr.attr, | |
309 | &sensor_dev_attr_in2_min.dev_attr.attr, | |
310 | &sensor_dev_attr_in3_min.dev_attr.attr, | |
311 | &sensor_dev_attr_in4_min.dev_attr.attr, | |
312 | &sensor_dev_attr_in5_min.dev_attr.attr, | |
313 | &sensor_dev_attr_in6_min.dev_attr.attr, | |
314 | &sensor_dev_attr_in0_max.dev_attr.attr, | |
315 | &sensor_dev_attr_in1_max.dev_attr.attr, | |
316 | &sensor_dev_attr_in2_max.dev_attr.attr, | |
317 | &sensor_dev_attr_in3_max.dev_attr.attr, | |
318 | &sensor_dev_attr_in4_max.dev_attr.attr, | |
319 | &sensor_dev_attr_in5_max.dev_attr.attr, | |
320 | &sensor_dev_attr_in6_max.dev_attr.attr, | |
321 | &sensor_dev_attr_in0_input.dev_attr.attr, | |
322 | &sensor_dev_attr_in1_input.dev_attr.attr, | |
323 | &sensor_dev_attr_in2_input.dev_attr.attr, | |
324 | &sensor_dev_attr_in3_input.dev_attr.attr, | |
325 | &sensor_dev_attr_in4_input.dev_attr.attr, | |
326 | &sensor_dev_attr_in5_input.dev_attr.attr, | |
327 | &sensor_dev_attr_in6_input.dev_attr.attr, | |
328 | &sensor_dev_attr_temp1_input.dev_attr.attr, | |
329 | &sensor_dev_attr_temp1_max.dev_attr.attr, | |
330 | &sensor_dev_attr_temp1_max_hyst.dev_attr.attr, | |
331 | &sensor_dev_attr_in0_alarm.dev_attr.attr, | |
332 | &sensor_dev_attr_in1_alarm.dev_attr.attr, | |
333 | &sensor_dev_attr_in2_alarm.dev_attr.attr, | |
334 | &sensor_dev_attr_in3_alarm.dev_attr.attr, | |
335 | &sensor_dev_attr_in4_alarm.dev_attr.attr, | |
336 | &sensor_dev_attr_in5_alarm.dev_attr.attr, | |
337 | &sensor_dev_attr_in6_alarm.dev_attr.attr, | |
338 | &sensor_dev_attr_temp1_max_alarm.dev_attr.attr, | |
339 | NULL | |
340 | }; | |
341 | ATTRIBUTE_GROUPS(adc128); | |
342 | ||
343 | static int adc128_detect(struct i2c_client *client, struct i2c_board_info *info) | |
344 | { | |
345 | int man_id, dev_id; | |
346 | ||
347 | if (!i2c_check_functionality(client->adapter, | |
348 | I2C_FUNC_SMBUS_BYTE_DATA | | |
349 | I2C_FUNC_SMBUS_WORD_DATA)) | |
350 | return -ENODEV; | |
351 | ||
352 | man_id = i2c_smbus_read_byte_data(client, ADC128_REG_MAN_ID); | |
353 | dev_id = i2c_smbus_read_byte_data(client, ADC128_REG_DEV_ID); | |
354 | if (man_id != 0x01 || dev_id != 0x09) | |
355 | return -ENODEV; | |
356 | ||
357 | /* Check unused bits for confirmation */ | |
358 | if (i2c_smbus_read_byte_data(client, ADC128_REG_CONFIG) & 0xf4) | |
359 | return -ENODEV; | |
360 | if (i2c_smbus_read_byte_data(client, ADC128_REG_CONV_RATE) & 0xfe) | |
361 | return -ENODEV; | |
362 | if (i2c_smbus_read_byte_data(client, ADC128_REG_ONESHOT) & 0xfe) | |
363 | return -ENODEV; | |
364 | if (i2c_smbus_read_byte_data(client, ADC128_REG_SHUTDOWN) & 0xfe) | |
365 | return -ENODEV; | |
366 | if (i2c_smbus_read_byte_data(client, ADC128_REG_CONFIG_ADV) & 0xf8) | |
367 | return -ENODEV; | |
368 | if (i2c_smbus_read_byte_data(client, ADC128_REG_BUSY_STATUS) & 0xfc) | |
369 | return -ENODEV; | |
370 | ||
371 | strlcpy(info->type, "adc128d818", I2C_NAME_SIZE); | |
372 | ||
373 | return 0; | |
374 | } | |
375 | ||
376 | static int adc128_init_client(struct adc128_data *data) | |
377 | { | |
378 | struct i2c_client *client = data->client; | |
379 | int err; | |
380 | ||
381 | /* | |
382 | * Reset chip to defaults. | |
383 | * This makes most other initializations unnecessary. | |
384 | */ | |
385 | err = i2c_smbus_write_byte_data(client, ADC128_REG_CONFIG, 0x80); | |
386 | if (err) | |
387 | return err; | |
388 | ||
389 | /* Start monitoring */ | |
390 | err = i2c_smbus_write_byte_data(client, ADC128_REG_CONFIG, 0x01); | |
391 | if (err) | |
392 | return err; | |
393 | ||
394 | /* If external vref is selected, configure the chip to use it */ | |
395 | if (data->regulator) { | |
396 | err = i2c_smbus_write_byte_data(client, | |
397 | ADC128_REG_CONFIG_ADV, 0x01); | |
398 | if (err) | |
399 | return err; | |
400 | } | |
401 | ||
402 | return 0; | |
403 | } | |
404 | ||
405 | static int adc128_probe(struct i2c_client *client, | |
406 | const struct i2c_device_id *id) | |
407 | { | |
408 | struct device *dev = &client->dev; | |
409 | struct regulator *regulator; | |
410 | struct device *hwmon_dev; | |
411 | struct adc128_data *data; | |
412 | int err, vref; | |
413 | ||
414 | data = devm_kzalloc(dev, sizeof(struct adc128_data), GFP_KERNEL); | |
415 | if (!data) | |
416 | return -ENOMEM; | |
417 | ||
418 | /* vref is optional. If specified, is used as chip reference voltage */ | |
419 | regulator = devm_regulator_get_optional(dev, "vref"); | |
420 | if (!IS_ERR(regulator)) { | |
421 | data->regulator = regulator; | |
422 | err = regulator_enable(regulator); | |
423 | if (err < 0) | |
424 | return err; | |
425 | vref = regulator_get_voltage(regulator); | |
426 | if (vref < 0) { | |
427 | err = vref; | |
428 | goto error; | |
429 | } | |
430 | data->vref = DIV_ROUND_CLOSEST(vref, 1000); | |
431 | } else { | |
432 | data->vref = 2560; /* 2.56V, in mV */ | |
433 | } | |
434 | ||
435 | data->client = client; | |
436 | i2c_set_clientdata(client, data); | |
437 | mutex_init(&data->update_lock); | |
438 | ||
439 | /* Initialize the chip */ | |
440 | err = adc128_init_client(data); | |
441 | if (err < 0) | |
442 | goto error; | |
443 | ||
444 | hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name, | |
445 | data, adc128_groups); | |
446 | if (IS_ERR(hwmon_dev)) { | |
447 | err = PTR_ERR(hwmon_dev); | |
448 | goto error; | |
449 | } | |
450 | ||
451 | return 0; | |
452 | ||
453 | error: | |
454 | if (data->regulator) | |
455 | regulator_disable(data->regulator); | |
456 | return err; | |
457 | } | |
458 | ||
459 | static int adc128_remove(struct i2c_client *client) | |
460 | { | |
461 | struct adc128_data *data = i2c_get_clientdata(client); | |
462 | ||
463 | if (data->regulator) | |
464 | regulator_disable(data->regulator); | |
465 | ||
466 | return 0; | |
467 | } | |
468 | ||
469 | static const struct i2c_device_id adc128_id[] = { | |
470 | { "adc128d818", 0 }, | |
471 | { } | |
472 | }; | |
473 | MODULE_DEVICE_TABLE(i2c, adc128_id); | |
474 | ||
475 | static struct i2c_driver adc128_driver = { | |
476 | .class = I2C_CLASS_HWMON, | |
477 | .driver = { | |
478 | .name = "adc128d818", | |
479 | }, | |
480 | .probe = adc128_probe, | |
481 | .remove = adc128_remove, | |
482 | .id_table = adc128_id, | |
483 | .detect = adc128_detect, | |
484 | .address_list = normal_i2c, | |
485 | }; | |
486 | ||
487 | module_i2c_driver(adc128_driver); | |
488 | ||
489 | MODULE_AUTHOR("Guenter Roeck"); | |
490 | MODULE_DESCRIPTION("Driver for ADC128D818"); | |
491 | MODULE_LICENSE("GPL"); |