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Add linux-next specific files for 20110831
[linux-2.6/next.git] / drivers / hwmon / sch5636.c
blob244407aa79fcbe05dc05b10ae7d88c0327db6d29
1 /***************************************************************************
2 * Copyright (C) 2011 Hans de Goede <hdegoede@redhat.com> *
3 * *
4 * This program is free software; you can redistribute it and/or modify *
5 * it under the terms of the GNU General Public License as published by *
6 * the Free Software Foundation; either version 2 of the License, or *
7 * (at your option) any later version. *
8 * *
9 * This program is distributed in the hope that it will be useful, *
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
12 * GNU General Public License for more details. *
13 * *
14 * You should have received a copy of the GNU General Public License *
15 * along with this program; if not, write to the *
16 * Free Software Foundation, Inc., *
17 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
18 ***************************************************************************/
19
20 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
21
22 #include <linux/module.h>
23 #include <linux/init.h>
24 #include <linux/slab.h>
25 #include <linux/jiffies.h>
26 #include <linux/platform_device.h>
27 #include <linux/hwmon.h>
28 #include <linux/hwmon-sysfs.h>
29 #include <linux/err.h>
30 #include <linux/mutex.h>
31 #include "sch56xx-common.h"
32
33 #define DRVNAME "sch5636"
34 #define DEVNAME "theseus" /* We only support one model for now */
35
36 #define SCH5636_REG_FUJITSU_ID 0x780
37 #define SCH5636_REG_FUJITSU_REV 0x783
38
39 #define SCH5636_NO_INS 5
40 #define SCH5636_NO_TEMPS 16
41 #define SCH5636_NO_FANS 8
42
43 static const u16 SCH5636_REG_IN_VAL[SCH5636_NO_INS] = {
44 0x22, 0x23, 0x24, 0x25, 0x189 };
45 static const u16 SCH5636_REG_IN_FACTORS[SCH5636_NO_INS] = {
46 4400, 1500, 4000, 4400, 16000 };
47 static const char * const SCH5636_IN_LABELS[SCH5636_NO_INS] = {
48 "3.3V", "VREF", "VBAT", "3.3AUX", "12V" };
49
50 static const u16 SCH5636_REG_TEMP_VAL[SCH5636_NO_TEMPS] = {
51 0x2B, 0x26, 0x27, 0x28, 0x29, 0x2A, 0x180, 0x181,
52 0x85, 0x86, 0x87, 0x88, 0x89, 0x8A, 0x8B, 0x8C };
53 #define SCH5636_REG_TEMP_CTRL(i) (0x790 + (i))
54 #define SCH5636_TEMP_WORKING 0x01
55 #define SCH5636_TEMP_ALARM 0x02
56 #define SCH5636_TEMP_DEACTIVATED 0x80
57
58 static const u16 SCH5636_REG_FAN_VAL[SCH5636_NO_FANS] = {
59 0x2C, 0x2E, 0x30, 0x32, 0x62, 0x64, 0x66, 0x68 };
60 #define SCH5636_REG_FAN_CTRL(i) (0x880 + (i))
61 /* FAULT in datasheet, but acts as an alarm */
62 #define SCH5636_FAN_ALARM 0x04
63 #define SCH5636_FAN_NOT_PRESENT 0x08
64 #define SCH5636_FAN_DEACTIVATED 0x80
65
66
67 struct sch5636_data {
68 unsigned short addr;
69 struct device *hwmon_dev;
70
71 struct mutex update_lock;
72 char valid; /* !=0 if following fields are valid */
73 unsigned long last_updated; /* In jiffies */
74 u8 in[SCH5636_NO_INS];
75 u8 temp_val[SCH5636_NO_TEMPS];
76 u8 temp_ctrl[SCH5636_NO_TEMPS];
77 u16 fan_val[SCH5636_NO_FANS];
78 u8 fan_ctrl[SCH5636_NO_FANS];
79 };
80
81 static struct sch5636_data *sch5636_update_device(struct device *dev)
82 {
83 struct sch5636_data *data = dev_get_drvdata(dev);
84 struct sch5636_data *ret = data;
85 int i, val;
86
87 mutex_lock(&data->update_lock);
88
89 /* Cache the values for 1 second */
90 if (data->valid && !time_after(jiffies, data->last_updated + HZ))
91 goto abort;
92
93 for (i = 0; i < SCH5636_NO_INS; i++) {
94 val = sch56xx_read_virtual_reg(data->addr,
95 SCH5636_REG_IN_VAL[i]);
96 if (unlikely(val < 0)) {
97 ret = ERR_PTR(val);
98 goto abort;
99 }
100 data->in[i] = val;
101 }
102
103 for (i = 0; i < SCH5636_NO_TEMPS; i++) {
104 if (data->temp_ctrl[i] & SCH5636_TEMP_DEACTIVATED)
105 continue;
106
107 val = sch56xx_read_virtual_reg(data->addr,
108 SCH5636_REG_TEMP_VAL[i]);
109 if (unlikely(val < 0)) {
110 ret = ERR_PTR(val);
111 goto abort;
112 }
113 data->temp_val[i] = val;
114
115 val = sch56xx_read_virtual_reg(data->addr,
116 SCH5636_REG_TEMP_CTRL(i));
117 if (unlikely(val < 0)) {
118 ret = ERR_PTR(val);
119 goto abort;
120 }
121 data->temp_ctrl[i] = val;
122 /* Alarms need to be explicitly write-cleared */
123 if (val & SCH5636_TEMP_ALARM) {
124 sch56xx_write_virtual_reg(data->addr,
125 SCH5636_REG_TEMP_CTRL(i), val);
126 }
127 }
128
129 for (i = 0; i < SCH5636_NO_FANS; i++) {
130 if (data->fan_ctrl[i] & SCH5636_FAN_DEACTIVATED)
131 continue;
132
133 val = sch56xx_read_virtual_reg16(data->addr,
134 SCH5636_REG_FAN_VAL[i]);
135 if (unlikely(val < 0)) {
136 ret = ERR_PTR(val);
137 goto abort;
138 }
139 data->fan_val[i] = val;
140
141 val = sch56xx_read_virtual_reg(data->addr,
142 SCH5636_REG_FAN_CTRL(i));
143 if (unlikely(val < 0)) {
144 ret = ERR_PTR(val);
145 goto abort;
146 }
147 data->fan_ctrl[i] = val;
148 /* Alarms need to be explicitly write-cleared */
149 if (val & SCH5636_FAN_ALARM) {
150 sch56xx_write_virtual_reg(data->addr,
151 SCH5636_REG_FAN_CTRL(i), val);
152 }
153 }
154
155 data->last_updated = jiffies;
156 data->valid = 1;
157 abort:
158 mutex_unlock(&data->update_lock);
159 return ret;
160 }
161
162 static int reg_to_rpm(u16 reg)
163 {
164 if (reg == 0)
165 return -EIO;
166 if (reg == 0xffff)
167 return 0;
168
169 return 5400540 / reg;
170 }
171
172 static ssize_t show_name(struct device *dev, struct device_attribute *devattr,
173 char *buf)
174 {
175 return snprintf(buf, PAGE_SIZE, "%s\n", DEVNAME);
176 }
177
178 static ssize_t show_in_value(struct device *dev, struct device_attribute
179 *devattr, char *buf)
180 {
181 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
182 struct sch5636_data *data = sch5636_update_device(dev);
183 int val;
184
185 if (IS_ERR(data))
186 return PTR_ERR(data);
187
188 val = DIV_ROUND_CLOSEST(
189 data->in[attr->index] * SCH5636_REG_IN_FACTORS[attr->index],
190 255);
191 return snprintf(buf, PAGE_SIZE, "%d\n", val);
192 }
193
194 static ssize_t show_in_label(struct device *dev, struct device_attribute
195 *devattr, char *buf)
196 {
197 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
198
199 return snprintf(buf, PAGE_SIZE, "%s\n",
200 SCH5636_IN_LABELS[attr->index]);
201 }
202
203 static ssize_t show_temp_value(struct device *dev, struct device_attribute
204 *devattr, char *buf)
205 {
206 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
207 struct sch5636_data *data = sch5636_update_device(dev);
208 int val;
209
210 if (IS_ERR(data))
211 return PTR_ERR(data);
212
213 val = (data->temp_val[attr->index] - 64) * 1000;
214 return snprintf(buf, PAGE_SIZE, "%d\n", val);
215 }
216
217 static ssize_t show_temp_fault(struct device *dev, struct device_attribute
218 *devattr, char *buf)
219 {
220 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
221 struct sch5636_data *data = sch5636_update_device(dev);
222 int val;
223
224 if (IS_ERR(data))
225 return PTR_ERR(data);
226
227 val = (data->temp_ctrl[attr->index] & SCH5636_TEMP_WORKING) ? 0 : 1;
228 return snprintf(buf, PAGE_SIZE, "%d\n", val);
229 }
230
231 static ssize_t show_temp_alarm(struct device *dev, struct device_attribute
232 *devattr, char *buf)
233 {
234 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
235 struct sch5636_data *data = sch5636_update_device(dev);
236 int val;
237
238 if (IS_ERR(data))
239 return PTR_ERR(data);
240
241 val = (data->temp_ctrl[attr->index] & SCH5636_TEMP_ALARM) ? 1 : 0;
242 return snprintf(buf, PAGE_SIZE, "%d\n", val);
243 }
244
245 static ssize_t show_fan_value(struct device *dev, struct device_attribute
246 *devattr, char *buf)
247 {
248 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
249 struct sch5636_data *data = sch5636_update_device(dev);
250 int val;
251
252 if (IS_ERR(data))
253 return PTR_ERR(data);
254
255 val = reg_to_rpm(data->fan_val[attr->index]);
256 if (val < 0)
257 return val;
258
259 return snprintf(buf, PAGE_SIZE, "%d\n", val);
260 }
261
262 static ssize_t show_fan_fault(struct device *dev, struct device_attribute
263 *devattr, char *buf)
264 {
265 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
266 struct sch5636_data *data = sch5636_update_device(dev);
267 int val;
268
269 if (IS_ERR(data))
270 return PTR_ERR(data);
271
272 val = (data->fan_ctrl[attr->index] & SCH5636_FAN_NOT_PRESENT) ? 1 : 0;
273 return snprintf(buf, PAGE_SIZE, "%d\n", val);
274 }
275
276 static ssize_t show_fan_alarm(struct device *dev, struct device_attribute
277 *devattr, char *buf)
278 {
279 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
280 struct sch5636_data *data = sch5636_update_device(dev);
281 int val;
282
283 if (IS_ERR(data))
284 return PTR_ERR(data);
285
286 val = (data->fan_ctrl[attr->index] & SCH5636_FAN_ALARM) ? 1 : 0;
287 return snprintf(buf, PAGE_SIZE, "%d\n", val);
288 }
289
290 static struct sensor_device_attribute sch5636_attr[] = {
291 SENSOR_ATTR(name, 0444, show_name, NULL, 0),
292 SENSOR_ATTR(in0_input, 0444, show_in_value, NULL, 0),
293 SENSOR_ATTR(in0_label, 0444, show_in_label, NULL, 0),
294 SENSOR_ATTR(in1_input, 0444, show_in_value, NULL, 1),
295 SENSOR_ATTR(in1_label, 0444, show_in_label, NULL, 1),
296 SENSOR_ATTR(in2_input, 0444, show_in_value, NULL, 2),
297 SENSOR_ATTR(in2_label, 0444, show_in_label, NULL, 2),
298 SENSOR_ATTR(in3_input, 0444, show_in_value, NULL, 3),
299 SENSOR_ATTR(in3_label, 0444, show_in_label, NULL, 3),
300 SENSOR_ATTR(in4_input, 0444, show_in_value, NULL, 4),
301 SENSOR_ATTR(in4_label, 0444, show_in_label, NULL, 4),
302 };
303
304 static struct sensor_device_attribute sch5636_temp_attr[] = {
305 SENSOR_ATTR(temp1_input, 0444, show_temp_value, NULL, 0),
306 SENSOR_ATTR(temp1_fault, 0444, show_temp_fault, NULL, 0),
307 SENSOR_ATTR(temp1_alarm, 0444, show_temp_alarm, NULL, 0),
308 SENSOR_ATTR(temp2_input, 0444, show_temp_value, NULL, 1),
309 SENSOR_ATTR(temp2_fault, 0444, show_temp_fault, NULL, 1),
310 SENSOR_ATTR(temp2_alarm, 0444, show_temp_alarm, NULL, 1),
311 SENSOR_ATTR(temp3_input, 0444, show_temp_value, NULL, 2),
312 SENSOR_ATTR(temp3_fault, 0444, show_temp_fault, NULL, 2),
313 SENSOR_ATTR(temp3_alarm, 0444, show_temp_alarm, NULL, 2),
314 SENSOR_ATTR(temp4_input, 0444, show_temp_value, NULL, 3),
315 SENSOR_ATTR(temp4_fault, 0444, show_temp_fault, NULL, 3),
316 SENSOR_ATTR(temp4_alarm, 0444, show_temp_alarm, NULL, 3),
317 SENSOR_ATTR(temp5_input, 0444, show_temp_value, NULL, 4),
318 SENSOR_ATTR(temp5_fault, 0444, show_temp_fault, NULL, 4),
319 SENSOR_ATTR(temp5_alarm, 0444, show_temp_alarm, NULL, 4),
320 SENSOR_ATTR(temp6_input, 0444, show_temp_value, NULL, 5),
321 SENSOR_ATTR(temp6_fault, 0444, show_temp_fault, NULL, 5),
322 SENSOR_ATTR(temp6_alarm, 0444, show_temp_alarm, NULL, 5),
323 SENSOR_ATTR(temp7_input, 0444, show_temp_value, NULL, 6),
324 SENSOR_ATTR(temp7_fault, 0444, show_temp_fault, NULL, 6),
325 SENSOR_ATTR(temp7_alarm, 0444, show_temp_alarm, NULL, 6),
326 SENSOR_ATTR(temp8_input, 0444, show_temp_value, NULL, 7),
327 SENSOR_ATTR(temp8_fault, 0444, show_temp_fault, NULL, 7),
328 SENSOR_ATTR(temp8_alarm, 0444, show_temp_alarm, NULL, 7),
329 SENSOR_ATTR(temp9_input, 0444, show_temp_value, NULL, 8),
330 SENSOR_ATTR(temp9_fault, 0444, show_temp_fault, NULL, 8),
331 SENSOR_ATTR(temp9_alarm, 0444, show_temp_alarm, NULL, 8),
332 SENSOR_ATTR(temp10_input, 0444, show_temp_value, NULL, 9),
333 SENSOR_ATTR(temp10_fault, 0444, show_temp_fault, NULL, 9),
334 SENSOR_ATTR(temp10_alarm, 0444, show_temp_alarm, NULL, 9),
335 SENSOR_ATTR(temp11_input, 0444, show_temp_value, NULL, 10),
336 SENSOR_ATTR(temp11_fault, 0444, show_temp_fault, NULL, 10),
337 SENSOR_ATTR(temp11_alarm, 0444, show_temp_alarm, NULL, 10),
338 SENSOR_ATTR(temp12_input, 0444, show_temp_value, NULL, 11),
339 SENSOR_ATTR(temp12_fault, 0444, show_temp_fault, NULL, 11),
340 SENSOR_ATTR(temp12_alarm, 0444, show_temp_alarm, NULL, 11),
341 SENSOR_ATTR(temp13_input, 0444, show_temp_value, NULL, 12),
342 SENSOR_ATTR(temp13_fault, 0444, show_temp_fault, NULL, 12),
343 SENSOR_ATTR(temp13_alarm, 0444, show_temp_alarm, NULL, 12),
344 SENSOR_ATTR(temp14_input, 0444, show_temp_value, NULL, 13),
345 SENSOR_ATTR(temp14_fault, 0444, show_temp_fault, NULL, 13),
346 SENSOR_ATTR(temp14_alarm, 0444, show_temp_alarm, NULL, 13),
347 SENSOR_ATTR(temp15_input, 0444, show_temp_value, NULL, 14),
348 SENSOR_ATTR(temp15_fault, 0444, show_temp_fault, NULL, 14),
349 SENSOR_ATTR(temp15_alarm, 0444, show_temp_alarm, NULL, 14),
350 SENSOR_ATTR(temp16_input, 0444, show_temp_value, NULL, 15),
351 SENSOR_ATTR(temp16_fault, 0444, show_temp_fault, NULL, 15),
352 SENSOR_ATTR(temp16_alarm, 0444, show_temp_alarm, NULL, 15),
353 };
354
355 static struct sensor_device_attribute sch5636_fan_attr[] = {
356 SENSOR_ATTR(fan1_input, 0444, show_fan_value, NULL, 0),
357 SENSOR_ATTR(fan1_fault, 0444, show_fan_fault, NULL, 0),
358 SENSOR_ATTR(fan1_alarm, 0444, show_fan_alarm, NULL, 0),
359 SENSOR_ATTR(fan2_input, 0444, show_fan_value, NULL, 1),
360 SENSOR_ATTR(fan2_fault, 0444, show_fan_fault, NULL, 1),
361 SENSOR_ATTR(fan2_alarm, 0444, show_fan_alarm, NULL, 1),
362 SENSOR_ATTR(fan3_input, 0444, show_fan_value, NULL, 2),
363 SENSOR_ATTR(fan3_fault, 0444, show_fan_fault, NULL, 2),
364 SENSOR_ATTR(fan3_alarm, 0444, show_fan_alarm, NULL, 2),
365 SENSOR_ATTR(fan4_input, 0444, show_fan_value, NULL, 3),
366 SENSOR_ATTR(fan4_fault, 0444, show_fan_fault, NULL, 3),
367 SENSOR_ATTR(fan4_alarm, 0444, show_fan_alarm, NULL, 3),
368 SENSOR_ATTR(fan5_input, 0444, show_fan_value, NULL, 4),
369 SENSOR_ATTR(fan5_fault, 0444, show_fan_fault, NULL, 4),
370 SENSOR_ATTR(fan5_alarm, 0444, show_fan_alarm, NULL, 4),
371 SENSOR_ATTR(fan6_input, 0444, show_fan_value, NULL, 5),
372 SENSOR_ATTR(fan6_fault, 0444, show_fan_fault, NULL, 5),
373 SENSOR_ATTR(fan6_alarm, 0444, show_fan_alarm, NULL, 5),
374 SENSOR_ATTR(fan7_input, 0444, show_fan_value, NULL, 6),
375 SENSOR_ATTR(fan7_fault, 0444, show_fan_fault, NULL, 6),
376 SENSOR_ATTR(fan7_alarm, 0444, show_fan_alarm, NULL, 6),
377 SENSOR_ATTR(fan8_input, 0444, show_fan_value, NULL, 7),
378 SENSOR_ATTR(fan8_fault, 0444, show_fan_fault, NULL, 7),
379 SENSOR_ATTR(fan8_alarm, 0444, show_fan_alarm, NULL, 7),
380 };
381
382 static int sch5636_remove(struct platform_device *pdev)
383 {
384 struct sch5636_data *data = platform_get_drvdata(pdev);
385 int i;
386
387 if (data->hwmon_dev)
388 hwmon_device_unregister(data->hwmon_dev);
389
390 for (i = 0; i < ARRAY_SIZE(sch5636_attr); i++)
391 device_remove_file(&pdev->dev, &sch5636_attr[i].dev_attr);
392
393 for (i = 0; i < SCH5636_NO_TEMPS * 3; i++)
394 device_remove_file(&pdev->dev,
395 &sch5636_temp_attr[i].dev_attr);
396
397 for (i = 0; i < SCH5636_NO_FANS * 3; i++)
398 device_remove_file(&pdev->dev,
399 &sch5636_fan_attr[i].dev_attr);
400
401 platform_set_drvdata(pdev, NULL);
402 kfree(data);
403
404 return 0;
405 }
406
407 static int __devinit sch5636_probe(struct platform_device *pdev)
408 {
409 struct sch5636_data *data;
410 int i, err, val, revision[2];
411 char id[4];
412
413 data = kzalloc(sizeof(struct sch5636_data), GFP_KERNEL);
414 if (!data)
415 return -ENOMEM;
416
417 data->addr = platform_get_resource(pdev, IORESOURCE_IO, 0)->start;
418 mutex_init(&data->update_lock);
419 platform_set_drvdata(pdev, data);
420
421 for (i = 0; i < 3; i++) {
422 val = sch56xx_read_virtual_reg(data->addr,
423 SCH5636_REG_FUJITSU_ID + i);
424 if (val < 0) {
425 pr_err("Could not read Fujitsu id byte at %#x\n",
426 SCH5636_REG_FUJITSU_ID + i);
427 err = val;
428 goto error;
429 }
430 id[i] = val;
431 }
432 id[i] = '\0';
433
434 if (strcmp(id, "THS")) {
435 pr_err("Unknown Fujitsu id: %02x%02x%02x\n",
436 id[0], id[1], id[2]);
437 err = -ENODEV;
438 goto error;
439 }
440
441 for (i = 0; i < 2; i++) {
442 val = sch56xx_read_virtual_reg(data->addr,
443 SCH5636_REG_FUJITSU_REV + i);
444 if (val < 0) {
445 err = val;
446 goto error;
447 }
448 revision[i] = val;
449 }
450 pr_info("Found %s chip at %#hx, revison: %d.%02d\n", DEVNAME,
451 data->addr, revision[0], revision[1]);
452
453 /* Read all temp + fan ctrl registers to determine which are active */
454 for (i = 0; i < SCH5636_NO_TEMPS; i++) {
455 val = sch56xx_read_virtual_reg(data->addr,
456 SCH5636_REG_TEMP_CTRL(i));
457 if (unlikely(val < 0)) {
458 err = val;
459 goto error;
460 }
461 data->temp_ctrl[i] = val;
462 }
463
464 for (i = 0; i < SCH5636_NO_FANS; i++) {
465 val = sch56xx_read_virtual_reg(data->addr,
466 SCH5636_REG_FAN_CTRL(i));
467 if (unlikely(val < 0)) {
468 err = val;
469 goto error;
470 }
471 data->fan_ctrl[i] = val;
472 }
473
474 for (i = 0; i < ARRAY_SIZE(sch5636_attr); i++) {
475 err = device_create_file(&pdev->dev,
476 &sch5636_attr[i].dev_attr);
477 if (err)
478 goto error;
479 }
480
481 for (i = 0; i < (SCH5636_NO_TEMPS * 3); i++) {
482 if (data->temp_ctrl[i/3] & SCH5636_TEMP_DEACTIVATED)
483 continue;
484
485 err = device_create_file(&pdev->dev,
486 &sch5636_temp_attr[i].dev_attr);
487 if (err)
488 goto error;
489 }
490
491 for (i = 0; i < (SCH5636_NO_FANS * 3); i++) {
492 if (data->fan_ctrl[i/3] & SCH5636_FAN_DEACTIVATED)
493 continue;
494
495 err = device_create_file(&pdev->dev,
496 &sch5636_fan_attr[i].dev_attr);
497 if (err)
498 goto error;
499 }
500
501 data->hwmon_dev = hwmon_device_register(&pdev->dev);
502 if (IS_ERR(data->hwmon_dev)) {
503 err = PTR_ERR(data->hwmon_dev);
504 data->hwmon_dev = NULL;
505 goto error;
506 }
507
508 return 0;
509
510 error:
511 sch5636_remove(pdev);
512 return err;
513 }
514
515 static struct platform_driver sch5636_driver = {
516 .driver = {
517 .owner = THIS_MODULE,
518 .name = DRVNAME,
519 },
520 .probe = sch5636_probe,
521 .remove = sch5636_remove,
522 };
523
524 static int __init sch5636_init(void)
525 {
526 return platform_driver_register(&sch5636_driver);
527 }
528
529 static void __exit sch5636_exit(void)
530 {
531 platform_driver_unregister(&sch5636_driver);
532 }
533
534 MODULE_DESCRIPTION("SMSC SCH5636 Hardware Monitoring Driver");
535 MODULE_AUTHOR("Hans de Goede <hdegoede@redhat.com>");
536 MODULE_LICENSE("GPL");
537
538 module_init(sch5636_init);
539 module_exit(sch5636_exit);
linux-next