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adm1021.c @ 2867

Revision 2867, 19.0 KB (checked in by khali, 8 years ago)
Drop unused client id.
Property svn:eol-style set to `native` Property svn:keywords set to `Author Date Id Revision`

Line
1	/*
2	adm1021.c - Part of lm_sensors, Linux kernel modules for hardware
3	monitoring
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
22	#include <linux/module.h>
23	#include <linux/slab.h>
24	#include <linux/i2c.h>
25	#include <linux/i2c-proc.h>
26	#include <linux/init.h>
27	#include "version.h"
28
29	/* Addresses to scan */
30	static unsigned short normal_i2c[] = { SENSORS_I2C_END };
31	static unsigned short normal_i2c_range[] = { 0x18, 0x1a, 0x29, 0x2b,
32	0x4c, 0x4e, SENSORS_I2C_END
33	};
34	static unsigned int normal_isa[] = { SENSORS_ISA_END };
35	static unsigned int normal_isa_range[] = { SENSORS_ISA_END };
36
37	/* Insmod parameters */
38	SENSORS_INSMOD_8(adm1021, adm1023, max1617, max1617a, thmc10, lm84, gl523sm, mc1066);
39
40	/* adm1021 constants specified below */
41
42	/* The adm1021 registers */
43	/* Read-only */
44	#define ADM1021_REG_TEMP 0x00
45	#define ADM1021_REG_REMOTE_TEMP 0x01
46	#define ADM1021_REG_STATUS 0x02
47	#define ADM1021_REG_MAN_ID 0x0FE /* 0x41 = Analog Devices, 0x49 = TI,
48	0x4D = Maxim, 0x23 = Genesys , 0x54 = Onsemi*/
49	#define ADM1021_REG_DEV_ID 0x0FF /* ADM1021 = 0x0X, ADM1021A/ADM1023 = 0x3X */
50	#define ADM1021_REG_DIE_CODE 0x0FF /* MAX1617A */
51	/* These use different addresses for reading/writing */
52	#define ADM1021_REG_CONFIG_R 0x03
53	#define ADM1021_REG_CONFIG_W 0x09
54	#define ADM1021_REG_CONV_RATE_R 0x04
55	#define ADM1021_REG_CONV_RATE_W 0x0A
56	/* These are for the ADM1023's additional precision on the remote temp sensor */
57	#define ADM1021_REG_REM_TEMP_PREC 0x010
58	#define ADM1021_REG_REM_OFFSET 0x011
59	#define ADM1021_REG_REM_OFFSET_PREC 0x012
60	#define ADM1021_REG_REM_TOS_PREC 0x013
61	#define ADM1021_REG_REM_THYST_PREC 0x014
62	/* limits */
63	#define ADM1021_REG_TOS_R 0x05
64	#define ADM1021_REG_TOS_W 0x0B
65	#define ADM1021_REG_REMOTE_TOS_R 0x07
66	#define ADM1021_REG_REMOTE_TOS_W 0x0D
67	#define ADM1021_REG_THYST_R 0x06
68	#define ADM1021_REG_THYST_W 0x0C
69	#define ADM1021_REG_REMOTE_THYST_R 0x08
70	#define ADM1021_REG_REMOTE_THYST_W 0x0E
71	/* write-only */
72	#define ADM1021_REG_ONESHOT 0x0F
73
74	#define ADM1021_ALARM_TEMP (ADM1021_ALARM_TEMP_HIGH \| ADM1021_ALARM_TEMP_LOW)
75	#define ADM1021_ALARM_RTEMP (ADM1021_ALARM_RTEMP_HIGH \| ADM1021_ALARM_RTEMP_LOW\
76	\| ADM1021_ALARM_RTEMP_NA)
77	#define ADM1021_ALARM_ALL (ADM1021_ALARM_TEMP \| ADM1021_ALARM_RTEMP)
78
79	/* Conversions. Rounding and limit checking is only done on the TO_REG
80	variants. Note that you should be a bit careful with which arguments
81	these macros are called: arguments may be evaluated more than once.
82	Fixing this is just not worth it. */
83	/* Conversions note: 1021 uses normal integer signed-byte format*/
84	#define TEMP_FROM_REG(val) (val > 127 ? val-256 : val)
85	#define TEMP_TO_REG(val) (SENSORS_LIMIT((val < 0 ? val+256 : val),0,255))
86
87	/* Each client has this additional data */
88	struct adm1021_data {
89	struct i2c_client client;
90	int sysctl_id;
91	enum chips type;
92
93	struct semaphore update_lock;
94	char valid; /* !=0 if following fields are valid */
95	unsigned long last_updated; /* In jiffies */
96
97	u8 temp, temp_os, temp_hyst; /* Register values */
98	u8 remote_temp, remote_temp_os, remote_temp_hyst, alarms, die_code;
99	u8 fail;
100	/* Special values for ADM1023 only */
101	u8 remote_temp_prec, remote_temp_os_prec, remote_temp_hyst_prec,
102	remote_temp_offset, remote_temp_offset_prec;
103	};
104
105	static int adm1021_attach_adapter(struct i2c_adapter *adapter);
106	static int adm1021_detect(struct i2c_adapter *adapter, int address,
107	unsigned short flags, int kind);
108	static void adm1021_init_client(struct i2c_client *client);
109	static int adm1021_detach_client(struct i2c_client *client);
110	static int adm1021_read_value(struct i2c_client *client, u8 reg);
111	static int adm1021_rd_good(u8 val, struct i2c_client client, u8 reg, u8 mask);
112	static int adm1021_write_value(struct i2c_client *client, u8 reg,
113	u16 value);
114	static void adm1021_temp(struct i2c_client *client, int operation,
115	int ctl_name, int nrels_mag, long results);
116	static void adm1021_remote_temp(struct i2c_client *client, int operation,
117	int ctl_name, int *nrels_mag,
118	long *results);
119	static void adm1021_alarms(struct i2c_client *client, int operation,
120	int ctl_name, int nrels_mag, long results);
121	static void adm1021_die_code(struct i2c_client *client, int operation,
122	int ctl_name, int nrels_mag, long results);
123	static void adm1021_update_client(struct i2c_client *client);
124
125	/* (amalysh) read only mode, otherwise any limit's writing confuse BIOS */
126	static int read_only = 0;
127
128
129	/* This is the driver that will be inserted */
130	static struct i2c_driver adm1021_driver = {
131	.name = "ADM1021, MAX1617 sensor driver",
132	.id = I2C_DRIVERID_ADM1021,
133	.flags = I2C_DF_NOTIFY,
134	.attach_adapter = adm1021_attach_adapter,
135	.detach_client = adm1021_detach_client,
136	};
137
138	/* -- SENSORS SYSCTL START -- */
139
140	#define ADM1021_SYSCTL_TEMP 1200
141	#define ADM1021_SYSCTL_REMOTE_TEMP 1201
142	#define ADM1021_SYSCTL_DIE_CODE 1202
143	#define ADM1021_SYSCTL_ALARMS 1203
144
145	#define ADM1021_ALARM_TEMP_HIGH 0x40
146	#define ADM1021_ALARM_TEMP_LOW 0x20
147	#define ADM1021_ALARM_RTEMP_HIGH 0x10
148	#define ADM1021_ALARM_RTEMP_LOW 0x08
149	#define ADM1021_ALARM_RTEMP_NA 0x04
150
151	/* -- SENSORS SYSCTL END -- */
152
153	/* These files are created for each detected adm1021. This is just a template;
154	though at first sight, you might think we could use a statically
155	allocated list, we need some way to get back to the parent - which
156	is done through one of the 'extra' fields which are initialized
157	when a new copy is allocated. */
158	static ctl_table adm1021_dir_table_template[] = {
159	{ADM1021_SYSCTL_TEMP, "temp1", NULL, 0, 0644, NULL, &i2c_proc_real,
160	&i2c_sysctl_real, NULL, &adm1021_temp},
161	{ADM1021_SYSCTL_REMOTE_TEMP, "temp2", NULL, 0, 0644, NULL, &i2c_proc_real,
162	&i2c_sysctl_real, NULL, &adm1021_remote_temp},
163	{ADM1021_SYSCTL_DIE_CODE, "die_code", NULL, 0, 0444, NULL, &i2c_proc_real,
164	&i2c_sysctl_real, NULL, &adm1021_die_code},
165	{ADM1021_SYSCTL_ALARMS, "alarms", NULL, 0, 0444, NULL, &i2c_proc_real,
166	&i2c_sysctl_real, NULL, &adm1021_alarms},
167	{0}
168	};
169
170	static ctl_table adm1021_max_dir_table_template[] = {
171	{ADM1021_SYSCTL_TEMP, "temp1", NULL, 0, 0644, NULL, &i2c_proc_real,
172	&i2c_sysctl_real, NULL, &adm1021_temp},
173	{ADM1021_SYSCTL_REMOTE_TEMP, "temp2", NULL, 0, 0644, NULL, &i2c_proc_real,
174	&i2c_sysctl_real, NULL, &adm1021_remote_temp},
175	{ADM1021_SYSCTL_ALARMS, "alarms", NULL, 0, 0444, NULL, &i2c_proc_real,
176	&i2c_sysctl_real, NULL, &adm1021_alarms},
177	{0}
178	};
179
180	static int adm1021_attach_adapter(struct i2c_adapter *adapter)
181	{
182	return i2c_detect(adapter, &addr_data, adm1021_detect);
183	}
184
185	static int adm1021_detect(struct i2c_adapter *adapter, int address,
186	unsigned short flags, int kind)
187	{
188	int i;
189	struct i2c_client *new_client;
190	struct adm1021_data *data;
191	int err = 0;
192	const char *type_name = "";
193	const char *client_name = "";
194
195	/* Make sure we aren't probing the ISA bus!! This is just a safety check
196	at this moment; i2c_detect really won't call us. */
197	#ifdef DEBUG
198	if (i2c_is_isa_adapter(adapter)) {
199	printk
200	("adm1021.o: adm1021_detect called for an ISA bus adapter?!?\n");
201	return 0;
202	}
203	#endif
204
205	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
206	goto error0;
207
208	/* OK. For now, we presume we have a valid client. We now create the
209	client structure, even though we cannot fill it completely yet.
210	But it allows us to access adm1021_{read,write}_value. */
211
212	if (!(data = kmalloc(sizeof(struct adm1021_data), GFP_KERNEL))) {
213	err = -ENOMEM;
214	goto error0;
215	}
216
217	new_client = &data->client;
218	new_client->addr = address;
219	new_client->data = data;
220	new_client->adapter = adapter;
221	new_client->driver = &adm1021_driver;
222	new_client->flags = 0;
223
224	/* Now, we do the remaining detection. */
225
226	if (kind < 0) {
227	if ((adm1021_read_value(new_client, ADM1021_REG_STATUS) & 0x03) != 0x00
228	\|\| (adm1021_read_value(new_client, ADM1021_REG_CONFIG_R) & 0x3F) != 0x00
229	\|\| (adm1021_read_value(new_client, ADM1021_REG_CONV_RATE_R) & 0xF8) != 0x00)
230	goto error1;
231	}
232
233	/* Determine the chip type. */
234
235	if (kind <= 0) {
236	i = adm1021_read_value(new_client, ADM1021_REG_MAN_ID);
237	if (i == 0x41)
238	if ((adm1021_read_value (new_client, ADM1021_REG_DEV_ID) & 0xF0) == 0x30)
239	kind = adm1023;
240	else
241	kind = adm1021;
242	else if (i == 0x49)
243	kind = thmc10;
244	else if (i == 0x23)
245	kind = gl523sm;
246	else if ((i == 0x4d) &&
247	(adm1021_read_value
248	(new_client, ADM1021_REG_DEV_ID) == 0x01))
249	kind = max1617a;
250	else if (i == 0x54)
251	kind = mc1066;
252	/* LM84 Mfr ID in a different place, and it has more unused bits */
253	else if (adm1021_read_value(new_client, ADM1021_REG_CONV_RATE_R) == 0x00
254	&& (kind == 0 /* skip extra detection */
255	\|\| ((adm1021_read_value(new_client, ADM1021_REG_CONFIG_R) & 0x7F) == 0x00
256	&& (adm1021_read_value(new_client, ADM1021_REG_STATUS) & 0xAB) == 0x00)))
257	kind = lm84;
258	else
259	kind = max1617;
260	}
261
262	if (kind == max1617) {
263	type_name = "max1617";
264	client_name = "MAX1617 chip";
265	} else if (kind == max1617a) {
266	type_name = "max1617a";
267	client_name = "MAX1617A chip";
268	} else if (kind == adm1021) {
269	type_name = "adm1021";
270	client_name = "ADM1021 chip";
271	} else if (kind == adm1023) {
272	type_name = "adm1023";
273	client_name = "ADM1023 chip";
274	} else if (kind == thmc10) {
275	type_name = "thmc10";
276	client_name = "THMC10 chip";
277	} else if (kind == lm84) {
278	type_name = "lm84";
279	client_name = "LM84 chip";
280	} else if (kind == gl523sm) {
281	type_name = "gl523sm";
282	client_name = "GL523SM chip";
283	} else if (kind == mc1066) {
284	type_name = "mc1066";
285	client_name = "MC1066 chip";
286	}
287
288	/* Fill in the remaining client fields and put it into the global list */
289	strcpy(new_client->name, client_name);
290	data->type = kind;
291	data->valid = 0;
292	init_MUTEX(&data->update_lock);
293
294	/* Tell the I2C layer a new client has arrived */
295	if ((err = i2c_attach_client(new_client)))
296	goto error3;
297
298	/* Register a new directory entry with module sensors */
299	if ((i = i2c_register_entry(new_client, type_name,
300	data->type == adm1021 ? adm1021_dir_table_template :
301	adm1021_max_dir_table_template,
302	THIS_MODULE)) < 0) {
303	err = i;
304	goto error4;
305	}
306	data->sysctl_id = i;
307
308	/* Initialize the ADM1021 chip */
309	if (kind != lm84)
310	adm1021_init_client(new_client);
311	return 0;
312
313	error4:
314	i2c_detach_client(new_client);
315	error3:
316	error1:
317	kfree(data);
318	error0:
319	return err;
320	}
321
322	static void adm1021_init_client(struct i2c_client *client)
323	{
324	/* Enable ADC and disable suspend mode */
325	adm1021_write_value(client, ADM1021_REG_CONFIG_W,
326	adm1021_read_value(client, ADM1021_REG_CONFIG_R) & 0xBF);
327	/* Set Conversion rate to 1/sec (this can be tinkered with) */
328	adm1021_write_value(client, ADM1021_REG_CONV_RATE_W, 0x04);
329	}
330
331	static int adm1021_detach_client(struct i2c_client *client)
332	{
333	int err;
334
335	i2c_deregister_entry(((struct adm1021_data *) (client->data))->
336	sysctl_id);
337
338	if ((err = i2c_detach_client(client))) {
339	printk
340	("adm1021.o: Client deregistration failed, client not detached.\n");
341	return err;
342	}
343
344	kfree(client->data);
345
346	return 0;
347	}
348
349
350	/* All registers are byte-sized */
351	static int adm1021_read_value(struct i2c_client *client, u8 reg)
352	{
353	return i2c_smbus_read_byte_data(client, reg);
354	}
355
356	/* only update value if read succeeded; set fail bit if failed */
357	static int adm1021_rd_good(u8 val, struct i2c_client client, u8 reg, u8 mask)
358	{
359	int i;
360	struct adm1021_data *data = client->data;
361
362	i = i2c_smbus_read_byte_data(client, reg);
363	if (i < 0) {
364	data->fail \|= mask;
365	return i;
366	}
367	*val = i;
368	return 0;
369	}
370
371	static int adm1021_write_value(struct i2c_client *client, u8 reg, u16 value)
372	{
373	if (read_only > 0)
374	return 0;
375
376	return i2c_smbus_write_byte_data(client, reg, value);
377	}
378
379	static void adm1021_update_client(struct i2c_client *client)
380	{
381	struct adm1021_data *data = client->data;
382
383	down(&data->update_lock);
384
385	if ((jiffies - data->last_updated > HZ + HZ / 2) \|\|
386	(jiffies < data->last_updated) \|\| !data->valid) {
387
388	#ifdef DEBUG
389	printk("Starting adm1021 update\n");
390	#endif
391
392	data->fail = 0;
393	adm1021_rd_good(&(data->temp), client, ADM1021_REG_TEMP,
394	ADM1021_ALARM_TEMP);
395	adm1021_rd_good(&(data->temp_os), client, ADM1021_REG_TOS_R,
396	ADM1021_ALARM_TEMP);
397	adm1021_rd_good(&(data->temp_hyst), client,
398	ADM1021_REG_THYST_R, ADM1021_ALARM_TEMP);
399	adm1021_rd_good(&(data->remote_temp), client,
400	ADM1021_REG_REMOTE_TEMP, ADM1021_ALARM_RTEMP);
401	adm1021_rd_good(&(data->remote_temp_os), client,
402	ADM1021_REG_REMOTE_TOS_R, ADM1021_ALARM_RTEMP);
403	adm1021_rd_good(&(data->remote_temp_hyst), client,
404	ADM1021_REG_REMOTE_THYST_R,
405	ADM1021_ALARM_RTEMP);
406	data->alarms = ADM1021_ALARM_ALL;
407	if (!adm1021_rd_good(&(data->alarms), client,
408	ADM1021_REG_STATUS, 0))
409	data->alarms &= ADM1021_ALARM_ALL;
410	if (data->type == adm1021)
411	adm1021_rd_good(&(data->die_code), client,
412	ADM1021_REG_DIE_CODE, 0);
413	if (data->type == adm1023) {
414	adm1021_rd_good(&(data->remote_temp_prec), client,
415	ADM1021_REG_REM_TEMP_PREC,
416	ADM1021_ALARM_TEMP);
417	adm1021_rd_good(&(data->remote_temp_os_prec), client,
418	ADM1021_REG_REM_TOS_PREC,
419	ADM1021_ALARM_RTEMP);
420	adm1021_rd_good(&(data->remote_temp_hyst_prec), client,
421	ADM1021_REG_REM_THYST_PREC,
422	ADM1021_ALARM_RTEMP);
423	adm1021_rd_good(&(data->remote_temp_offset), client,
424	ADM1021_REG_REM_OFFSET,
425	ADM1021_ALARM_RTEMP);
426	adm1021_rd_good(&(data->remote_temp_offset_prec),
427	client, ADM1021_REG_REM_OFFSET_PREC,
428	ADM1021_ALARM_RTEMP);
429	}
430	data->last_updated = jiffies;
431	data->valid = 1;
432	}
433
434	up(&data->update_lock);
435	}
436
437
438	void adm1021_temp(struct i2c_client *client, int operation, int ctl_name,
439	int nrels_mag, long results)
440	{
441	struct adm1021_data *data = client->data;
442	if (operation == SENSORS_PROC_REAL_INFO)
443	*nrels_mag = 0;
444	else if (operation == SENSORS_PROC_REAL_READ) {
445	adm1021_update_client(client);
446	results[0] = TEMP_FROM_REG(data->temp_os);
447	results[1] = TEMP_FROM_REG(data->temp_hyst);
448	results[2] = TEMP_FROM_REG(data->temp);
449	*nrels_mag = 3;
450	} else if (operation == SENSORS_PROC_REAL_WRITE) {
451	if (*nrels_mag >= 1) {
452	data->temp_os = TEMP_TO_REG(results[0]);
453	adm1021_write_value(client, ADM1021_REG_TOS_W,
454	data->temp_os);
455	}
456	if (*nrels_mag >= 2) {
457	data->temp_hyst = TEMP_TO_REG(results[1]);
458	adm1021_write_value(client, ADM1021_REG_THYST_W,
459	data->temp_hyst);
460	}
461	}
462	}
463
464	void adm1021_remote_temp(struct i2c_client *client, int operation,
465	int ctl_name, int nrels_mag, long results)
466	{
467	struct adm1021_data *data = client->data;
468	int prec = 0;
469
470	if (operation == SENSORS_PROC_REAL_INFO)
471	if (data->type == adm1023) { *nrels_mag = 3; }
472	else { *nrels_mag = 0; }
473	else if (operation == SENSORS_PROC_REAL_READ) {
474	adm1021_update_client(client);
475	results[0] = TEMP_FROM_REG(data->remote_temp_os);
476	results[1] = TEMP_FROM_REG(data->remote_temp_hyst);
477	results[2] = TEMP_FROM_REG(data->remote_temp);
478	if (data->type == adm1023) {
479	results[0]=results[0]*1000 +
480	((data->remote_temp_os_prec >> 5) * 125);
481	results[1]=results[1]*1000 +
482	((data->remote_temp_hyst_prec >> 5) * 125);
483	results[2]=(TEMP_FROM_REG(data->remote_temp_offset)*1000) +
484	((data->remote_temp_offset_prec >> 5) * 125);
485	results[3]=TEMP_FROM_REG(data->remote_temp)*1000 +
486	((data->remote_temp_prec >> 5) * 125);
487	*nrels_mag = 4;
488	} else {
489	*nrels_mag = 3;
490	}
491	} else if (operation == SENSORS_PROC_REAL_WRITE) {
492	if (*nrels_mag >= 1) {
493	if (data->type == adm1023) {
494	prec=((results[0]-((results[0]/1000)*1000))/125)<<5;
495	adm1021_write_value(client,
496	ADM1021_REG_REM_TOS_PREC,
497	prec);
498	results[0]=results[0]/1000;
499	data->remote_temp_os_prec=prec;
500	}
501	data->remote_temp_os = TEMP_TO_REG(results[0]);
502	adm1021_write_value(client,
503	ADM1021_REG_REMOTE_TOS_W,
504	data->remote_temp_os);
505	}
506	if (*nrels_mag >= 2) {
507	if (data->type == adm1023) {
508	prec=((results[1]-((results[1]/1000)*1000))/125)<<5;
509	adm1021_write_value(client,
510	ADM1021_REG_REM_THYST_PREC,
511	prec);
512	results[1]=results[1]/1000;
513	data->remote_temp_hyst_prec=prec;
514	}
515	data->remote_temp_hyst = TEMP_TO_REG(results[1]);
516	adm1021_write_value(client,
517	ADM1021_REG_REMOTE_THYST_W,
518	data->remote_temp_hyst);
519	}
520	if (*nrels_mag >= 3) {
521	if (data->type == adm1023) {
522	prec=((results[2]-((results[2]/1000)*1000))/125)<<5;
523	adm1021_write_value(client,
524	ADM1021_REG_REM_OFFSET_PREC,
525	prec);
526	results[2]=results[2]/1000;
527	data->remote_temp_offset_prec=prec;
528	data->remote_temp_offset=results[2];
529	adm1021_write_value(client,
530	ADM1021_REG_REM_OFFSET,
531	data->remote_temp_offset);
532	}
533	}
534	}
535	}
536
537	void adm1021_die_code(struct i2c_client *client, int operation,
538	int ctl_name, int nrels_mag, long results)
539	{
540	struct adm1021_data *data = client->data;
541	if (operation == SENSORS_PROC_REAL_INFO)
542	*nrels_mag = 0;
543	else if (operation == SENSORS_PROC_REAL_READ) {
544	adm1021_update_client(client);
545	results[0] = data->die_code;
546	*nrels_mag = 1;
547	} else if (operation == SENSORS_PROC_REAL_WRITE) {
548	/* Can't write to it */
549	}
550	}
551
552	void adm1021_alarms(struct i2c_client *client, int operation, int ctl_name,
553	int nrels_mag, long results)
554	{
555	struct adm1021_data *data = client->data;
556	if (operation == SENSORS_PROC_REAL_INFO)
557	*nrels_mag = 0;
558	else if (operation == SENSORS_PROC_REAL_READ) {
559	adm1021_update_client(client);
560	results[0] = data->alarms \| data->fail;
561	*nrels_mag = 1;
562	} else if (operation == SENSORS_PROC_REAL_WRITE) {
563	/* Can't write to it */
564	}
565	}
566
567	static int __init sm_adm1021_init(void)
568	{
569	printk(KERN_INFO "adm1021.o version %s (%s)\n", LM_VERSION, LM_DATE);
570	return i2c_add_driver(&adm1021_driver);
571	}
572
573	static void __exit sm_adm1021_exit(void)
574	{
575	i2c_del_driver(&adm1021_driver);
576	}
577
578	MODULE_AUTHOR
579	("Frodo Looijaard <frodol@dds.nl> and Philip Edelbrock <phil@netroedge.com>");
580	MODULE_DESCRIPTION("adm1021 driver");
581	MODULE_LICENSE("GPL");
582
583	MODULE_PARM(read_only, "i");
584	MODULE_PARM_DESC(read_only, "Don't set any values, read only mode");
585
586	module_init(sm_adm1021_init)
587	module_exit(sm_adm1021_exit)

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