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Commit | Line | Data |
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1da177e4 LT |
1 | /* |
2 | adm1021.c - Part of lm_sensors, Linux kernel modules for hardware | |
c83c41e4 | 3 | monitoring |
1da177e4 LT |
4 | Copyright (c) 1998, 1999 Frodo Looijaard <frodol@dds.nl> and |
5 | Philip Edelbrock <phil@netroedge.com> | |
6 | ||
7 | This program is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 2 of the License, or | |
10 | (at your option) any later version. | |
11 | ||
12 | This program is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with this program; if not, write to the Free Software | |
19 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
20 | */ | |
21 | ||
1da177e4 LT |
22 | #include <linux/module.h> |
23 | #include <linux/init.h> | |
24 | #include <linux/slab.h> | |
25 | #include <linux/jiffies.h> | |
26 | #include <linux/i2c.h> | |
943b0830 | 27 | #include <linux/hwmon.h> |
a8d6646e | 28 | #include <linux/hwmon-sysfs.h> |
943b0830 | 29 | #include <linux/err.h> |
9a61bf63 | 30 | #include <linux/mutex.h> |
1da177e4 LT |
31 | |
32 | ||
33 | /* Addresses to scan */ | |
25e9c86d MH |
34 | static const unsigned short normal_i2c[] = { |
35 | 0x18, 0x19, 0x1a, 0x29, 0x2a, 0x2b, 0x4c, 0x4d, 0x4e, I2C_CLIENT_END }; | |
1da177e4 LT |
36 | |
37 | /* Insmod parameters */ | |
c83c41e4 KH |
38 | I2C_CLIENT_INSMOD_8(adm1021, adm1023, max1617, max1617a, thmc10, lm84, gl523sm, |
39 | mc1066); | |
1da177e4 LT |
40 | |
41 | /* adm1021 constants specified below */ | |
42 | ||
43 | /* The adm1021 registers */ | |
44 | /* Read-only */ | |
a8d6646e KH |
45 | /* For nr in 0-1 */ |
46 | #define ADM1021_REG_TEMP(nr) (nr) | |
1da177e4 | 47 | #define ADM1021_REG_STATUS 0x02 |
c83c41e4 KH |
48 | /* 0x41 = AD, 0x49 = TI, 0x4D = Maxim, 0x23 = Genesys , 0x54 = Onsemi */ |
49 | #define ADM1021_REG_MAN_ID 0xFE | |
50 | /* ADM1021 = 0x0X, ADM1023 = 0x3X */ | |
51 | #define ADM1021_REG_DEV_ID 0xFF | |
1da177e4 LT |
52 | /* These use different addresses for reading/writing */ |
53 | #define ADM1021_REG_CONFIG_R 0x03 | |
54 | #define ADM1021_REG_CONFIG_W 0x09 | |
55 | #define ADM1021_REG_CONV_RATE_R 0x04 | |
56 | #define ADM1021_REG_CONV_RATE_W 0x0A | |
57 | /* These are for the ADM1023's additional precision on the remote temp sensor */ | |
c83c41e4 KH |
58 | #define ADM1023_REG_REM_TEMP_PREC 0x10 |
59 | #define ADM1023_REG_REM_OFFSET 0x11 | |
60 | #define ADM1023_REG_REM_OFFSET_PREC 0x12 | |
61 | #define ADM1023_REG_REM_TOS_PREC 0x13 | |
62 | #define ADM1023_REG_REM_THYST_PREC 0x14 | |
1da177e4 | 63 | /* limits */ |
a8d6646e KH |
64 | /* For nr in 0-1 */ |
65 | #define ADM1021_REG_TOS_R(nr) (0x05 + 2 * (nr)) | |
66 | #define ADM1021_REG_TOS_W(nr) (0x0B + 2 * (nr)) | |
67 | #define ADM1021_REG_THYST_R(nr) (0x06 + 2 * (nr)) | |
68 | #define ADM1021_REG_THYST_W(nr) (0x0C + 2 * (nr)) | |
1da177e4 LT |
69 | /* write-only */ |
70 | #define ADM1021_REG_ONESHOT 0x0F | |
71 | ||
1da177e4 LT |
72 | /* Initial values */ |
73 | ||
c83c41e4 KH |
74 | /* Note: Even though I left the low and high limits named os and hyst, |
75 | they don't quite work like a thermostat the way the LM75 does. I.e., | |
76 | a lower temp than THYST actually triggers an alarm instead of | |
1da177e4 LT |
77 | clearing it. Weird, ey? --Phil */ |
78 | ||
79 | /* Each client has this additional data */ | |
80 | struct adm1021_data { | |
1beeffe4 | 81 | struct device *hwmon_dev; |
1da177e4 LT |
82 | enum chips type; |
83 | ||
9a61bf63 | 84 | struct mutex update_lock; |
1da177e4 LT |
85 | char valid; /* !=0 if following fields are valid */ |
86 | unsigned long last_updated; /* In jiffies */ | |
87 | ||
a8d6646e KH |
88 | s8 temp_max[2]; /* Register values */ |
89 | s8 temp_min[2]; | |
90 | s8 temp[2]; | |
91 | u8 alarms; | |
92 | /* Special values for ADM1023 only */ | |
93 | u8 remote_temp_prec; | |
94 | u8 remote_temp_os_prec; | |
95 | u8 remote_temp_hyst_prec; | |
96 | u8 remote_temp_offset; | |
97 | u8 remote_temp_offset_prec; | |
1da177e4 LT |
98 | }; |
99 | ||
65817ed8 JD |
100 | static int adm1021_probe(struct i2c_client *client, |
101 | const struct i2c_device_id *id); | |
102 | static int adm1021_detect(struct i2c_client *client, int kind, | |
103 | struct i2c_board_info *info); | |
1da177e4 | 104 | static void adm1021_init_client(struct i2c_client *client); |
65817ed8 | 105 | static int adm1021_remove(struct i2c_client *client); |
1da177e4 LT |
106 | static struct adm1021_data *adm1021_update_device(struct device *dev); |
107 | ||
108 | /* (amalysh) read only mode, otherwise any limit's writing confuse BIOS */ | |
02002963 | 109 | static int read_only; |
1da177e4 LT |
110 | |
111 | ||
65817ed8 JD |
112 | static const struct i2c_device_id adm1021_id[] = { |
113 | { "adm1021", adm1021 }, | |
114 | { "adm1023", adm1023 }, | |
115 | { "max1617", max1617 }, | |
116 | { "max1617a", max1617a }, | |
117 | { "thmc10", thmc10 }, | |
118 | { "lm84", lm84 }, | |
119 | { "gl523sm", gl523sm }, | |
120 | { "mc1066", mc1066 }, | |
121 | { } | |
122 | }; | |
123 | MODULE_DEVICE_TABLE(i2c, adm1021_id); | |
124 | ||
1da177e4 LT |
125 | /* This is the driver that will be inserted */ |
126 | static struct i2c_driver adm1021_driver = { | |
65817ed8 | 127 | .class = I2C_CLASS_HWMON, |
cdaf7934 | 128 | .driver = { |
cdaf7934 LR |
129 | .name = "adm1021", |
130 | }, | |
65817ed8 JD |
131 | .probe = adm1021_probe, |
132 | .remove = adm1021_remove, | |
133 | .id_table = adm1021_id, | |
134 | .detect = adm1021_detect, | |
135 | .address_data = &addr_data, | |
1da177e4 LT |
136 | }; |
137 | ||
a8d6646e KH |
138 | static ssize_t show_temp(struct device *dev, |
139 | struct device_attribute *devattr, char *buf) | |
140 | { | |
141 | int index = to_sensor_dev_attr(devattr)->index; | |
142 | struct adm1021_data *data = adm1021_update_device(dev); | |
143 | ||
144 | return sprintf(buf, "%d\n", 1000 * data->temp[index]); | |
145 | } | |
146 | ||
147 | static ssize_t show_temp_max(struct device *dev, | |
148 | struct device_attribute *devattr, char *buf) | |
149 | { | |
150 | int index = to_sensor_dev_attr(devattr)->index; | |
151 | struct adm1021_data *data = adm1021_update_device(dev); | |
152 | ||
153 | return sprintf(buf, "%d\n", 1000 * data->temp_max[index]); | |
154 | } | |
155 | ||
156 | static ssize_t show_temp_min(struct device *dev, | |
157 | struct device_attribute *devattr, char *buf) | |
158 | { | |
159 | int index = to_sensor_dev_attr(devattr)->index; | |
160 | struct adm1021_data *data = adm1021_update_device(dev); | |
161 | ||
162 | return sprintf(buf, "%d\n", 1000 * data->temp_min[index]); | |
1da177e4 | 163 | } |
1da177e4 | 164 | |
739ba248 KH |
165 | static ssize_t show_alarm(struct device *dev, struct device_attribute *attr, |
166 | char *buf) | |
167 | { | |
168 | int index = to_sensor_dev_attr(attr)->index; | |
169 | struct adm1021_data *data = adm1021_update_device(dev); | |
170 | return sprintf(buf, "%u\n", (data->alarms >> index) & 1); | |
171 | } | |
172 | ||
c83c41e4 KH |
173 | static ssize_t show_alarms(struct device *dev, |
174 | struct device_attribute *attr, | |
175 | char *buf) | |
176 | { | |
177 | struct adm1021_data *data = adm1021_update_device(dev); | |
178 | return sprintf(buf, "%u\n", data->alarms); | |
1da177e4 | 179 | } |
c83c41e4 | 180 | |
a8d6646e KH |
181 | static ssize_t set_temp_max(struct device *dev, |
182 | struct device_attribute *devattr, | |
183 | const char *buf, size_t count) | |
184 | { | |
185 | int index = to_sensor_dev_attr(devattr)->index; | |
186 | struct i2c_client *client = to_i2c_client(dev); | |
187 | struct adm1021_data *data = i2c_get_clientdata(client); | |
188 | long temp = simple_strtol(buf, NULL, 10) / 1000; | |
189 | ||
190 | mutex_lock(&data->update_lock); | |
191 | data->temp_max[index] = SENSORS_LIMIT(temp, -128, 127); | |
192 | if (!read_only) | |
193 | i2c_smbus_write_byte_data(client, ADM1021_REG_TOS_W(index), | |
194 | data->temp_max[index]); | |
195 | mutex_unlock(&data->update_lock); | |
196 | ||
197 | return count; | |
198 | } | |
199 | ||
200 | static ssize_t set_temp_min(struct device *dev, | |
201 | struct device_attribute *devattr, | |
202 | const char *buf, size_t count) | |
203 | { | |
204 | int index = to_sensor_dev_attr(devattr)->index; | |
205 | struct i2c_client *client = to_i2c_client(dev); | |
206 | struct adm1021_data *data = i2c_get_clientdata(client); | |
207 | long temp = simple_strtol(buf, NULL, 10) / 1000; | |
208 | ||
209 | mutex_lock(&data->update_lock); | |
210 | data->temp_min[index] = SENSORS_LIMIT(temp, -128, 127); | |
211 | if (!read_only) | |
212 | i2c_smbus_write_byte_data(client, ADM1021_REG_THYST_W(index), | |
213 | data->temp_min[index]); | |
214 | mutex_unlock(&data->update_lock); | |
215 | ||
216 | return count; | |
1da177e4 | 217 | } |
1da177e4 | 218 | |
a8d6646e KH |
219 | static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_temp, NULL, 0); |
220 | static SENSOR_DEVICE_ATTR(temp1_max, S_IWUSR | S_IRUGO, show_temp_max, | |
221 | set_temp_max, 0); | |
222 | static SENSOR_DEVICE_ATTR(temp1_min, S_IWUSR | S_IRUGO, show_temp_min, | |
223 | set_temp_min, 0); | |
224 | static SENSOR_DEVICE_ATTR(temp2_input, S_IRUGO, show_temp, NULL, 1); | |
225 | static SENSOR_DEVICE_ATTR(temp2_max, S_IWUSR | S_IRUGO, show_temp_max, | |
226 | set_temp_max, 1); | |
227 | static SENSOR_DEVICE_ATTR(temp2_min, S_IWUSR | S_IRUGO, show_temp_min, | |
228 | set_temp_min, 1); | |
739ba248 KH |
229 | static SENSOR_DEVICE_ATTR(temp1_max_alarm, S_IRUGO, show_alarm, NULL, 6); |
230 | static SENSOR_DEVICE_ATTR(temp1_min_alarm, S_IRUGO, show_alarm, NULL, 5); | |
231 | static SENSOR_DEVICE_ATTR(temp2_max_alarm, S_IRUGO, show_alarm, NULL, 4); | |
232 | static SENSOR_DEVICE_ATTR(temp2_min_alarm, S_IRUGO, show_alarm, NULL, 3); | |
233 | static SENSOR_DEVICE_ATTR(temp2_fault, S_IRUGO, show_alarm, NULL, 2); | |
234 | ||
a8d6646e | 235 | static DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL); |
1da177e4 | 236 | |
681c6f7a | 237 | static struct attribute *adm1021_attributes[] = { |
a8d6646e KH |
238 | &sensor_dev_attr_temp1_max.dev_attr.attr, |
239 | &sensor_dev_attr_temp1_min.dev_attr.attr, | |
240 | &sensor_dev_attr_temp1_input.dev_attr.attr, | |
241 | &sensor_dev_attr_temp2_max.dev_attr.attr, | |
242 | &sensor_dev_attr_temp2_min.dev_attr.attr, | |
243 | &sensor_dev_attr_temp2_input.dev_attr.attr, | |
739ba248 KH |
244 | &sensor_dev_attr_temp1_max_alarm.dev_attr.attr, |
245 | &sensor_dev_attr_temp1_min_alarm.dev_attr.attr, | |
246 | &sensor_dev_attr_temp2_max_alarm.dev_attr.attr, | |
247 | &sensor_dev_attr_temp2_min_alarm.dev_attr.attr, | |
248 | &sensor_dev_attr_temp2_fault.dev_attr.attr, | |
681c6f7a MH |
249 | &dev_attr_alarms.attr, |
250 | NULL | |
251 | }; | |
252 | ||
253 | static const struct attribute_group adm1021_group = { | |
254 | .attrs = adm1021_attributes, | |
255 | }; | |
256 | ||
65817ed8 JD |
257 | /* Return 0 if detection is successful, -ENODEV otherwise */ |
258 | static int adm1021_detect(struct i2c_client *client, int kind, | |
259 | struct i2c_board_info *info) | |
1da177e4 | 260 | { |
65817ed8 | 261 | struct i2c_adapter *adapter = client->adapter; |
1da177e4 | 262 | int i; |
1da177e4 | 263 | const char *type_name = ""; |
c83c41e4 | 264 | int conv_rate, status, config; |
1da177e4 | 265 | |
c83c41e4 KH |
266 | if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) { |
267 | pr_debug("adm1021: detect failed, " | |
268 | "smbus byte data not supported!\n"); | |
65817ed8 | 269 | return -ENODEV; |
1da177e4 | 270 | } |
1da177e4 | 271 | |
c83c41e4 KH |
272 | status = i2c_smbus_read_byte_data(client, ADM1021_REG_STATUS); |
273 | conv_rate = i2c_smbus_read_byte_data(client, | |
274 | ADM1021_REG_CONV_RATE_R); | |
275 | config = i2c_smbus_read_byte_data(client, ADM1021_REG_CONFIG_R); | |
1da177e4 LT |
276 | |
277 | /* Now, we do the remaining detection. */ | |
278 | if (kind < 0) { | |
c83c41e4 KH |
279 | if ((status & 0x03) != 0x00 || (config & 0x3F) != 0x00 |
280 | || (conv_rate & 0xF8) != 0x00) { | |
281 | pr_debug("adm1021: detect failed, " | |
282 | "chip not detected!\n"); | |
65817ed8 | 283 | return -ENODEV; |
1da177e4 LT |
284 | } |
285 | } | |
286 | ||
287 | /* Determine the chip type. */ | |
288 | if (kind <= 0) { | |
c83c41e4 | 289 | i = i2c_smbus_read_byte_data(client, ADM1021_REG_MAN_ID); |
1da177e4 | 290 | if (i == 0x41) |
c83c41e4 KH |
291 | if ((i2c_smbus_read_byte_data(client, |
292 | ADM1021_REG_DEV_ID) & 0xF0) == 0x30) | |
1da177e4 LT |
293 | kind = adm1023; |
294 | else | |
295 | kind = adm1021; | |
296 | else if (i == 0x49) | |
297 | kind = thmc10; | |
298 | else if (i == 0x23) | |
299 | kind = gl523sm; | |
300 | else if ((i == 0x4d) && | |
c83c41e4 KH |
301 | (i2c_smbus_read_byte_data(client, |
302 | ADM1021_REG_DEV_ID) == 0x01)) | |
1da177e4 LT |
303 | kind = max1617a; |
304 | else if (i == 0x54) | |
305 | kind = mc1066; | |
306 | /* LM84 Mfr ID in a different place, and it has more unused bits */ | |
c83c41e4 KH |
307 | else if (conv_rate == 0x00 |
308 | && (kind == 0 /* skip extra detection */ | |
309 | || ((config & 0x7F) == 0x00 | |
310 | && (status & 0xAB) == 0x00))) | |
1da177e4 LT |
311 | kind = lm84; |
312 | else | |
313 | kind = max1617; | |
314 | } | |
315 | ||
316 | if (kind == max1617) { | |
317 | type_name = "max1617"; | |
318 | } else if (kind == max1617a) { | |
319 | type_name = "max1617a"; | |
320 | } else if (kind == adm1021) { | |
321 | type_name = "adm1021"; | |
322 | } else if (kind == adm1023) { | |
323 | type_name = "adm1023"; | |
324 | } else if (kind == thmc10) { | |
325 | type_name = "thmc10"; | |
326 | } else if (kind == lm84) { | |
327 | type_name = "lm84"; | |
328 | } else if (kind == gl523sm) { | |
329 | type_name = "gl523sm"; | |
330 | } else if (kind == mc1066) { | |
331 | type_name = "mc1066"; | |
332 | } | |
c83c41e4 | 333 | pr_debug("adm1021: Detected chip %s at adapter %d, address 0x%02x.\n", |
65817ed8 JD |
334 | type_name, i2c_adapter_id(adapter), client->addr); |
335 | strlcpy(info->type, type_name, I2C_NAME_SIZE); | |
1da177e4 | 336 | |
65817ed8 JD |
337 | return 0; |
338 | } | |
1da177e4 | 339 | |
65817ed8 JD |
340 | static int adm1021_probe(struct i2c_client *client, |
341 | const struct i2c_device_id *id) | |
342 | { | |
343 | struct adm1021_data *data; | |
344 | int err; | |
345 | ||
346 | data = kzalloc(sizeof(struct adm1021_data), GFP_KERNEL); | |
347 | if (!data) { | |
348 | pr_debug("adm1021: detect failed, kzalloc failed!\n"); | |
349 | err = -ENOMEM; | |
350 | goto error0; | |
351 | } | |
352 | ||
353 | i2c_set_clientdata(client, data); | |
354 | data->type = id->driver_data; | |
355 | mutex_init(&data->update_lock); | |
1da177e4 LT |
356 | |
357 | /* Initialize the ADM1021 chip */ | |
65817ed8 | 358 | if (data->type != lm84 && !read_only) |
c83c41e4 | 359 | adm1021_init_client(client); |
1da177e4 LT |
360 | |
361 | /* Register sysfs hooks */ | |
c83c41e4 | 362 | if ((err = sysfs_create_group(&client->dev.kobj, &adm1021_group))) |
65817ed8 | 363 | goto error1; |
681c6f7a | 364 | |
1beeffe4 TJ |
365 | data->hwmon_dev = hwmon_device_register(&client->dev); |
366 | if (IS_ERR(data->hwmon_dev)) { | |
367 | err = PTR_ERR(data->hwmon_dev); | |
681c6f7a | 368 | goto error3; |
943b0830 MH |
369 | } |
370 | ||
1da177e4 LT |
371 | return 0; |
372 | ||
681c6f7a | 373 | error3: |
c83c41e4 | 374 | sysfs_remove_group(&client->dev.kobj, &adm1021_group); |
1da177e4 LT |
375 | error1: |
376 | kfree(data); | |
377 | error0: | |
378 | return err; | |
379 | } | |
380 | ||
381 | static void adm1021_init_client(struct i2c_client *client) | |
382 | { | |
383 | /* Enable ADC and disable suspend mode */ | |
c83c41e4 KH |
384 | i2c_smbus_write_byte_data(client, ADM1021_REG_CONFIG_W, |
385 | i2c_smbus_read_byte_data(client, ADM1021_REG_CONFIG_R) & 0xBF); | |
1da177e4 | 386 | /* Set Conversion rate to 1/sec (this can be tinkered with) */ |
c83c41e4 | 387 | i2c_smbus_write_byte_data(client, ADM1021_REG_CONV_RATE_W, 0x04); |
1da177e4 LT |
388 | } |
389 | ||
65817ed8 | 390 | static int adm1021_remove(struct i2c_client *client) |
1da177e4 | 391 | { |
943b0830 | 392 | struct adm1021_data *data = i2c_get_clientdata(client); |
1da177e4 | 393 | |
1beeffe4 | 394 | hwmon_device_unregister(data->hwmon_dev); |
681c6f7a | 395 | sysfs_remove_group(&client->dev.kobj, &adm1021_group); |
943b0830 | 396 | |
943b0830 | 397 | kfree(data); |
1da177e4 LT |
398 | return 0; |
399 | } | |
400 | ||
1da177e4 LT |
401 | static struct adm1021_data *adm1021_update_device(struct device *dev) |
402 | { | |
403 | struct i2c_client *client = to_i2c_client(dev); | |
404 | struct adm1021_data *data = i2c_get_clientdata(client); | |
405 | ||
9a61bf63 | 406 | mutex_lock(&data->update_lock); |
1da177e4 LT |
407 | |
408 | if (time_after(jiffies, data->last_updated + HZ + HZ / 2) | |
409 | || !data->valid) { | |
a8d6646e KH |
410 | int i; |
411 | ||
1da177e4 LT |
412 | dev_dbg(&client->dev, "Starting adm1021 update\n"); |
413 | ||
a8d6646e KH |
414 | for (i = 0; i < 2; i++) { |
415 | data->temp[i] = i2c_smbus_read_byte_data(client, | |
416 | ADM1021_REG_TEMP(i)); | |
417 | data->temp_max[i] = i2c_smbus_read_byte_data(client, | |
418 | ADM1021_REG_TOS_R(i)); | |
419 | data->temp_min[i] = i2c_smbus_read_byte_data(client, | |
420 | ADM1021_REG_THYST_R(i)); | |
421 | } | |
c83c41e4 KH |
422 | data->alarms = i2c_smbus_read_byte_data(client, |
423 | ADM1021_REG_STATUS) & 0x7c; | |
1da177e4 | 424 | if (data->type == adm1023) { |
c83c41e4 KH |
425 | data->remote_temp_prec = |
426 | i2c_smbus_read_byte_data(client, | |
427 | ADM1023_REG_REM_TEMP_PREC); | |
428 | data->remote_temp_os_prec = | |
429 | i2c_smbus_read_byte_data(client, | |
430 | ADM1023_REG_REM_TOS_PREC); | |
431 | data->remote_temp_hyst_prec = | |
432 | i2c_smbus_read_byte_data(client, | |
433 | ADM1023_REG_REM_THYST_PREC); | |
434 | data->remote_temp_offset = | |
435 | i2c_smbus_read_byte_data(client, | |
436 | ADM1023_REG_REM_OFFSET); | |
437 | data->remote_temp_offset_prec = | |
438 | i2c_smbus_read_byte_data(client, | |
439 | ADM1023_REG_REM_OFFSET_PREC); | |
1da177e4 LT |
440 | } |
441 | data->last_updated = jiffies; | |
442 | data->valid = 1; | |
443 | } | |
444 | ||
9a61bf63 | 445 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
446 | |
447 | return data; | |
448 | } | |
449 | ||
450 | static int __init sensors_adm1021_init(void) | |
451 | { | |
452 | return i2c_add_driver(&adm1021_driver); | |
453 | } | |
454 | ||
455 | static void __exit sensors_adm1021_exit(void) | |
456 | { | |
457 | i2c_del_driver(&adm1021_driver); | |
458 | } | |
459 | ||
460 | MODULE_AUTHOR ("Frodo Looijaard <frodol@dds.nl> and " | |
461 | "Philip Edelbrock <phil@netroedge.com>"); | |
462 | MODULE_DESCRIPTION("adm1021 driver"); | |
463 | MODULE_LICENSE("GPL"); | |
464 | ||
465 | module_param(read_only, bool, 0); | |
466 | MODULE_PARM_DESC(read_only, "Don't set any values, read only mode"); | |
467 | ||
468 | module_init(sensors_adm1021_init) | |
469 | module_exit(sensors_adm1021_exit) |