1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 * HWMON driver for ASUS motherboards that provides sensor readouts via WMI
4 * interface present in the UEFI of the X370/X470/B450/X399 Ryzen motherboards.
5 *
6 * Copyright (C) 2018-2019 Ed Brindley <kernel@maidavale.org>
7 *
8 * WMI interface provides:
9 * - CPU Core Voltage,
10 * - CPU SOC Voltage,
11 * - DRAM Voltage,
12 * - VDDP Voltage,
13 * - 1.8V PLL Voltage,
14 * - +12V Voltage,
15 * - +5V Voltage,
16 * - 3VSB Voltage,
17 * - VBAT Voltage,
18 * - AVCC3 Voltage,
19 * - SB 1.05V Voltage,
20 * - CPU Core Voltage,
21 * - CPU SOC Voltage,
22 * - DRAM Voltage,
23 * - CPU Fan RPM,
24 * - Chassis Fan 1 RPM,
25 * - Chassis Fan 2 RPM,
26 * - Chassis Fan 3 RPM,
27 * - HAMP Fan RPM,
28 * - Water Pump RPM,
29 * - CPU OPT RPM,
30 * - Water Flow RPM,
31 * - AIO Pump RPM,
32 * - CPU Temperature,
33 * - CPU Socket Temperature,
34 * - Motherboard Temperature,
35 * - Chipset Temperature,
36 * - Tsensor 1 Temperature,
37 * - CPU VRM Temperature,
38 * - Water In,
39 * - Water Out,
40 * - CPU VRM Output Current.
41 */
42
43 #include <linux/acpi.h>
44 #include <linux/dmi.h>
45 #include <linux/hwmon.h>
46 #include <linux/init.h>
47 #include <linux/jiffies.h>
48 #include <linux/kernel.h>
49 #include <linux/module.h>
50 #include <linux/mutex.h>
51 #include <linux/units.h>
52 #include <linux/wmi.h>
53
54 #define ASUSWMI_MONITORING_GUID "466747A0-70EC-11DE-8A39-0800200C9A66"
55 #define ASUSWMI_METHODID_GET_VALUE 0x52574543 /* RWEC */
56 #define ASUSWMI_METHODID_UPDATE_BUFFER 0x51574543 /* QWEC */
57 #define ASUSWMI_METHODID_GET_INFO 0x50574543 /* PWEC */
58 #define ASUSWMI_METHODID_GET_NUMBER 0x50574572 /* PWEr */
59 #define ASUSWMI_METHODID_GET_VERSION 0x50574574 /* PWEt */
60
61 #define ASUS_WMI_MAX_STR_SIZE 32
62
63 #define DMI_EXACT_MATCH_ASUS_BOARD_NAME(name) { \
64 .matches = { \
65 DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "ASUSTeK COMPUTER INC."), \
66 DMI_EXACT_MATCH(DMI_BOARD_NAME, name), \
67 }, \
68 }
69
70 static const struct dmi_system_id asus_wmi_dmi_table[] = {
71 DMI_EXACT_MATCH_ASUS_BOARD_NAME("PRIME X399-A"),
72 DMI_EXACT_MATCH_ASUS_BOARD_NAME("PRIME X470-PRO"),
73 DMI_EXACT_MATCH_ASUS_BOARD_NAME("ROG CROSSHAIR VI EXTREME"),
74 DMI_EXACT_MATCH_ASUS_BOARD_NAME("CROSSHAIR VI HERO"),
75 DMI_EXACT_MATCH_ASUS_BOARD_NAME("ROG CROSSHAIR VI HERO (WI-FI AC)"),
76 DMI_EXACT_MATCH_ASUS_BOARD_NAME("ROG CROSSHAIR VII HERO"),
77 DMI_EXACT_MATCH_ASUS_BOARD_NAME("ROG CROSSHAIR VII HERO (WI-FI)"),
78 DMI_EXACT_MATCH_ASUS_BOARD_NAME("ROG STRIX B450-E GAMING"),
79 DMI_EXACT_MATCH_ASUS_BOARD_NAME("ROG STRIX B450-F GAMING"),
80 DMI_EXACT_MATCH_ASUS_BOARD_NAME("ROG STRIX B450-F GAMING II"),
81 DMI_EXACT_MATCH_ASUS_BOARD_NAME("ROG STRIX B450-I GAMING"),
82 DMI_EXACT_MATCH_ASUS_BOARD_NAME("ROG STRIX X399-E GAMING"),
83 DMI_EXACT_MATCH_ASUS_BOARD_NAME("ROG STRIX X470-F GAMING"),
84 DMI_EXACT_MATCH_ASUS_BOARD_NAME("ROG STRIX X470-I GAMING"),
85 DMI_EXACT_MATCH_ASUS_BOARD_NAME("ROG ZENITH EXTREME"),
86 DMI_EXACT_MATCH_ASUS_BOARD_NAME("ROG ZENITH EXTREME ALPHA"),
87 {}
88 };
89 MODULE_DEVICE_TABLE(dmi, asus_wmi_dmi_table);
90
91 enum asus_wmi_sensor_class {
92 VOLTAGE = 0x0,
93 TEMPERATURE_C = 0x1,
94 FAN_RPM = 0x2,
95 CURRENT = 0x3,
96 WATER_FLOW = 0x4,
97 };
98
99 enum asus_wmi_location {
100 CPU = 0x0,
101 CPU_SOC = 0x1,
102 DRAM = 0x2,
103 MOTHERBOARD = 0x3,
104 CHIPSET = 0x4,
105 AUX = 0x5,
106 VRM = 0x6,
107 COOLER = 0x7
108 };
109
110 enum asus_wmi_type {
111 SIGNED_INT = 0x0,
112 UNSIGNED_INT = 0x1,
113 SCALED = 0x3,
114 };
115
116 enum asus_wmi_source {
117 SIO = 0x1,
118 EC = 0x2
119 };
120
121 static enum hwmon_sensor_types asus_data_types[] = {
122 [VOLTAGE] = hwmon_in,
123 [TEMPERATURE_C] = hwmon_temp,
124 [FAN_RPM] = hwmon_fan,
125 [CURRENT] = hwmon_curr,
126 [WATER_FLOW] = hwmon_fan,
127 };
128
129 static u32 hwmon_attributes[hwmon_max] = {
130 [hwmon_chip] = HWMON_C_REGISTER_TZ,
131 [hwmon_temp] = HWMON_T_INPUT | HWMON_T_LABEL,
132 [hwmon_in] = HWMON_I_INPUT | HWMON_I_LABEL,
133 [hwmon_curr] = HWMON_C_INPUT | HWMON_C_LABEL,
134 [hwmon_fan] = HWMON_F_INPUT | HWMON_F_LABEL,
135 };
136
137 /**
138 * struct asus_wmi_sensor_info - sensor info.
139 * @id: sensor id.
140 * @data_type: sensor class e.g. voltage, temp etc.
141 * @location: sensor location.
142 * @name: sensor name.
143 * @source: sensor source.
144 * @type: sensor type signed, unsigned etc.
145 * @cached_value: cached sensor value.
146 */
147 struct asus_wmi_sensor_info {
148 u32 id;
149 int data_type;
150 int location;
151 char name[ASUS_WMI_MAX_STR_SIZE];
152 int source;
153 int type;
154 long cached_value;
155 };
156
157 struct asus_wmi_wmi_info {
158 unsigned long source_last_updated[3]; /* in jiffies */
159 int sensor_count;
160
161 const struct asus_wmi_sensor_info **info[hwmon_max];
162 struct asus_wmi_sensor_info **info_by_id;
163 };
164
165 struct asus_wmi_sensors {
166 struct asus_wmi_wmi_info wmi;
167 /* lock access to internal cache */
168 struct mutex lock;
169 };
170
171 /*
172 * Universal method for calling WMI method
173 */
asus_wmi_call_method(u32 method_id,u32 * args,struct acpi_buffer * output)174 static int asus_wmi_call_method(u32 method_id, u32 *args, struct acpi_buffer *output)
175 {
176 struct acpi_buffer input = {(acpi_size) sizeof(*args), args };
177 acpi_status status;
178
179 status = wmi_evaluate_method(ASUSWMI_MONITORING_GUID, 0,
180 method_id, &input, output);
181 if (ACPI_FAILURE(status))
182 return -EIO;
183
184 return 0;
185 }
186
187 /*
188 * Gets the version of the ASUS sensors interface implemented
189 */
asus_wmi_get_version(u32 * version)190 static int asus_wmi_get_version(u32 *version)
191 {
192 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
193 u32 args[] = {0, 0, 0};
194 union acpi_object *obj;
195 int err;
196
197 err = asus_wmi_call_method(ASUSWMI_METHODID_GET_VERSION, args, &output);
198 if (err)
199 return err;
200
201 obj = output.pointer;
202 if (!obj)
203 return -EIO;
204
205 if (obj->type != ACPI_TYPE_INTEGER) {
206 err = -EIO;
207 goto out_free_obj;
208 }
209
210 err = 0;
211 *version = obj->integer.value;
212
213 out_free_obj:
214 ACPI_FREE(obj);
215 return err;
216 }
217
218 /*
219 * Gets the number of sensor items
220 */
asus_wmi_get_item_count(u32 * count)221 static int asus_wmi_get_item_count(u32 *count)
222 {
223 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
224 u32 args[] = {0, 0, 0};
225 union acpi_object *obj;
226 int err;
227
228 err = asus_wmi_call_method(ASUSWMI_METHODID_GET_NUMBER, args, &output);
229 if (err)
230 return err;
231
232 obj = output.pointer;
233 if (!obj)
234 return -EIO;
235
236 if (obj->type != ACPI_TYPE_INTEGER) {
237 err = -EIO;
238 goto out_free_obj;
239 }
240
241 err = 0;
242 *count = obj->integer.value;
243
244 out_free_obj:
245 ACPI_FREE(obj);
246 return err;
247 }
248
asus_wmi_hwmon_add_chan_info(struct hwmon_channel_info * asus_wmi_hwmon_chan,struct device * dev,int num,enum hwmon_sensor_types type,u32 config)249 static int asus_wmi_hwmon_add_chan_info(struct hwmon_channel_info *asus_wmi_hwmon_chan,
250 struct device *dev, int num,
251 enum hwmon_sensor_types type, u32 config)
252 {
253 u32 *cfg;
254
255 cfg = devm_kcalloc(dev, num + 1, sizeof(*cfg), GFP_KERNEL);
256 if (!cfg)
257 return -ENOMEM;
258
259 asus_wmi_hwmon_chan->type = type;
260 asus_wmi_hwmon_chan->config = cfg;
261 memset32(cfg, config, num);
262
263 return 0;
264 }
265
266 /*
267 * For a given sensor item returns details e.g. type (voltage/temperature/fan speed etc), bank etc
268 */
asus_wmi_sensor_info(int index,struct asus_wmi_sensor_info * s)269 static int asus_wmi_sensor_info(int index, struct asus_wmi_sensor_info *s)
270 {
271 union acpi_object name_obj, data_type_obj, location_obj, source_obj, type_obj;
272 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
273 u32 args[] = {index, 0};
274 union acpi_object *obj;
275 int err;
276
277 err = asus_wmi_call_method(ASUSWMI_METHODID_GET_INFO, args, &output);
278 if (err)
279 return err;
280
281 s->id = index;
282
283 obj = output.pointer;
284 if (!obj)
285 return -EIO;
286
287 if (obj->type != ACPI_TYPE_PACKAGE) {
288 err = -EIO;
289 goto out_free_obj;
290 }
291
292 if (obj->package.count != 5) {
293 err = -EIO;
294 goto out_free_obj;
295 }
296
297 name_obj = obj->package.elements[0];
298 if (name_obj.type != ACPI_TYPE_STRING) {
299 err = -EIO;
300 goto out_free_obj;
301 }
302
303 strncpy(s->name, name_obj.string.pointer, sizeof(s->name) - 1);
304
305 data_type_obj = obj->package.elements[1];
306 if (data_type_obj.type != ACPI_TYPE_INTEGER) {
307 err = -EIO;
308 goto out_free_obj;
309 }
310
311 s->data_type = data_type_obj.integer.value;
312
313 location_obj = obj->package.elements[2];
314 if (location_obj.type != ACPI_TYPE_INTEGER) {
315 err = -EIO;
316 goto out_free_obj;
317 }
318
319 s->location = location_obj.integer.value;
320
321 source_obj = obj->package.elements[3];
322 if (source_obj.type != ACPI_TYPE_INTEGER) {
323 err = -EIO;
324 goto out_free_obj;
325 }
326
327 s->source = source_obj.integer.value;
328
329 type_obj = obj->package.elements[4];
330 if (type_obj.type != ACPI_TYPE_INTEGER) {
331 err = -EIO;
332 goto out_free_obj;
333 }
334
335 err = 0;
336 s->type = type_obj.integer.value;
337
338 out_free_obj:
339 ACPI_FREE(obj);
340 return err;
341 }
342
asus_wmi_update_buffer(int source)343 static int asus_wmi_update_buffer(int source)
344 {
345 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
346 u32 args[] = {source, 0};
347
348 return asus_wmi_call_method(ASUSWMI_METHODID_UPDATE_BUFFER, args, &output);
349 }
350
asus_wmi_get_sensor_value(u8 index,long * value)351 static int asus_wmi_get_sensor_value(u8 index, long *value)
352 {
353 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
354 u32 args[] = {index, 0};
355 union acpi_object *obj;
356 int err;
357
358 err = asus_wmi_call_method(ASUSWMI_METHODID_GET_VALUE, args, &output);
359 if (err)
360 return err;
361
362 obj = output.pointer;
363 if (!obj)
364 return -EIO;
365
366 if (obj->type != ACPI_TYPE_INTEGER) {
367 err = -EIO;
368 goto out_free_obj;
369 }
370
371 err = 0;
372 *value = obj->integer.value;
373
374 out_free_obj:
375 ACPI_FREE(obj);
376 return err;
377 }
378
asus_wmi_update_values_for_source(u8 source,struct asus_wmi_sensors * sensor_data)379 static int asus_wmi_update_values_for_source(u8 source, struct asus_wmi_sensors *sensor_data)
380 {
381 struct asus_wmi_sensor_info *sensor;
382 long value = 0;
383 int ret;
384 int i;
385
386 for (i = 0; i < sensor_data->wmi.sensor_count; i++) {
387 sensor = sensor_data->wmi.info_by_id[i];
388 if (sensor && sensor->source == source) {
389 ret = asus_wmi_get_sensor_value(sensor->id, &value);
390 if (ret)
391 return ret;
392
393 sensor->cached_value = value;
394 }
395 }
396
397 return 0;
398 }
399
asus_wmi_scale_sensor_value(u32 value,int data_type)400 static int asus_wmi_scale_sensor_value(u32 value, int data_type)
401 {
402 /* FAN_RPM and WATER_FLOW don't need scaling */
403 switch (data_type) {
404 case VOLTAGE:
405 /* value in microVolts */
406 return DIV_ROUND_CLOSEST(value, KILO);
407 case TEMPERATURE_C:
408 /* value in Celsius */
409 return value * MILLIDEGREE_PER_DEGREE;
410 case CURRENT:
411 /* value in Amperes */
412 return value * MILLI;
413 }
414 return value;
415 }
416
asus_wmi_get_cached_value_or_update(const struct asus_wmi_sensor_info * sensor,struct asus_wmi_sensors * sensor_data,u32 * value)417 static int asus_wmi_get_cached_value_or_update(const struct asus_wmi_sensor_info *sensor,
418 struct asus_wmi_sensors *sensor_data,
419 u32 *value)
420 {
421 int ret = 0;
422
423 mutex_lock(&sensor_data->lock);
424
425 if (time_after(jiffies, sensor_data->wmi.source_last_updated[sensor->source] + HZ)) {
426 ret = asus_wmi_update_buffer(sensor->source);
427 if (ret)
428 goto unlock;
429
430 ret = asus_wmi_update_values_for_source(sensor->source, sensor_data);
431 if (ret)
432 goto unlock;
433
434 sensor_data->wmi.source_last_updated[sensor->source] = jiffies;
435 }
436
437 *value = sensor->cached_value;
438
439 unlock:
440 mutex_unlock(&sensor_data->lock);
441
442 return ret;
443 }
444
445 /* Now follow the functions that implement the hwmon interface */
asus_wmi_hwmon_read(struct device * dev,enum hwmon_sensor_types type,u32 attr,int channel,long * val)446 static int asus_wmi_hwmon_read(struct device *dev, enum hwmon_sensor_types type,
447 u32 attr, int channel, long *val)
448 {
449 const struct asus_wmi_sensor_info *sensor;
450 u32 value = 0;
451 int ret;
452
453 struct asus_wmi_sensors *sensor_data = dev_get_drvdata(dev);
454
455 sensor = *(sensor_data->wmi.info[type] + channel);
456
457 ret = asus_wmi_get_cached_value_or_update(sensor, sensor_data, &value);
458 if (ret)
459 return ret;
460
461 *val = asus_wmi_scale_sensor_value(value, sensor->data_type);
462
463 return ret;
464 }
465
asus_wmi_hwmon_read_string(struct device * dev,enum hwmon_sensor_types type,u32 attr,int channel,const char ** str)466 static int asus_wmi_hwmon_read_string(struct device *dev,
467 enum hwmon_sensor_types type, u32 attr,
468 int channel, const char **str)
469 {
470 struct asus_wmi_sensors *sensor_data = dev_get_drvdata(dev);
471 const struct asus_wmi_sensor_info *sensor;
472
473 sensor = *(sensor_data->wmi.info[type] + channel);
474 *str = sensor->name;
475
476 return 0;
477 }
478
asus_wmi_hwmon_is_visible(const void * drvdata,enum hwmon_sensor_types type,u32 attr,int channel)479 static umode_t asus_wmi_hwmon_is_visible(const void *drvdata,
480 enum hwmon_sensor_types type, u32 attr,
481 int channel)
482 {
483 const struct asus_wmi_sensors *sensor_data = drvdata;
484 const struct asus_wmi_sensor_info *sensor;
485
486 sensor = *(sensor_data->wmi.info[type] + channel);
487 if (sensor)
488 return 0444;
489
490 return 0;
491 }
492
493 static const struct hwmon_ops asus_wmi_hwmon_ops = {
494 .is_visible = asus_wmi_hwmon_is_visible,
495 .read = asus_wmi_hwmon_read,
496 .read_string = asus_wmi_hwmon_read_string,
497 };
498
499 static struct hwmon_chip_info asus_wmi_chip_info = {
500 .ops = &asus_wmi_hwmon_ops,
501 .info = NULL,
502 };
503
asus_wmi_configure_sensor_setup(struct device * dev,struct asus_wmi_sensors * sensor_data)504 static int asus_wmi_configure_sensor_setup(struct device *dev,
505 struct asus_wmi_sensors *sensor_data)
506 {
507 const struct hwmon_channel_info **ptr_asus_wmi_ci;
508 struct hwmon_channel_info *asus_wmi_hwmon_chan;
509 int nr_count[hwmon_max] = {}, nr_types = 0;
510 struct asus_wmi_sensor_info *temp_sensor;
511 const struct hwmon_chip_info *chip_info;
512 enum hwmon_sensor_types type;
513 struct device *hwdev;
514 int i, idx;
515 int err;
516
517 temp_sensor = devm_kcalloc(dev, 1, sizeof(*temp_sensor), GFP_KERNEL);
518 if (!temp_sensor)
519 return -ENOMEM;
520
521 for (i = 0; i < sensor_data->wmi.sensor_count; i++) {
522 err = asus_wmi_sensor_info(i, temp_sensor);
523 if (err)
524 return err;
525
526 switch (temp_sensor->data_type) {
527 case TEMPERATURE_C:
528 case VOLTAGE:
529 case CURRENT:
530 case FAN_RPM:
531 case WATER_FLOW:
532 type = asus_data_types[temp_sensor->data_type];
533 if (!nr_count[type])
534 nr_types++;
535 nr_count[type]++;
536 break;
537 }
538 }
539
540 if (nr_count[hwmon_temp])
541 nr_count[hwmon_chip]++, nr_types++;
542
543 asus_wmi_hwmon_chan = devm_kcalloc(dev, nr_types,
544 sizeof(*asus_wmi_hwmon_chan),
545 GFP_KERNEL);
546 if (!asus_wmi_hwmon_chan)
547 return -ENOMEM;
548
549 ptr_asus_wmi_ci = devm_kcalloc(dev, nr_types + 1,
550 sizeof(*ptr_asus_wmi_ci), GFP_KERNEL);
551 if (!ptr_asus_wmi_ci)
552 return -ENOMEM;
553
554 asus_wmi_chip_info.info = ptr_asus_wmi_ci;
555 chip_info = &asus_wmi_chip_info;
556
557 sensor_data->wmi.info_by_id = devm_kcalloc(dev, sensor_data->wmi.sensor_count,
558 sizeof(*sensor_data->wmi.info_by_id),
559 GFP_KERNEL);
560
561 if (!sensor_data->wmi.info_by_id)
562 return -ENOMEM;
563
564 for (type = 0; type < hwmon_max; type++) {
565 if (!nr_count[type])
566 continue;
567
568 err = asus_wmi_hwmon_add_chan_info(asus_wmi_hwmon_chan, dev,
569 nr_count[type], type,
570 hwmon_attributes[type]);
571 if (err)
572 return err;
573
574 *ptr_asus_wmi_ci++ = asus_wmi_hwmon_chan++;
575
576 sensor_data->wmi.info[type] = devm_kcalloc(dev,
577 nr_count[type],
578 sizeof(*sensor_data->wmi.info),
579 GFP_KERNEL);
580 if (!sensor_data->wmi.info[type])
581 return -ENOMEM;
582 }
583
584 for (i = sensor_data->wmi.sensor_count - 1; i >= 0; i--) {
585 temp_sensor = devm_kzalloc(dev, sizeof(*temp_sensor), GFP_KERNEL);
586 if (!temp_sensor)
587 return -ENOMEM;
588
589 err = asus_wmi_sensor_info(i, temp_sensor);
590 if (err)
591 continue;
592
593 switch (temp_sensor->data_type) {
594 case TEMPERATURE_C:
595 case VOLTAGE:
596 case CURRENT:
597 case FAN_RPM:
598 case WATER_FLOW:
599 type = asus_data_types[temp_sensor->data_type];
600 idx = --nr_count[type];
601 *(sensor_data->wmi.info[type] + idx) = temp_sensor;
602 sensor_data->wmi.info_by_id[i] = temp_sensor;
603 break;
604 }
605 }
606
607 dev_dbg(dev, "board has %d sensors",
608 sensor_data->wmi.sensor_count);
609
610 hwdev = devm_hwmon_device_register_with_info(dev, "asus_wmi_sensors",
611 sensor_data, chip_info, NULL);
612
613 return PTR_ERR_OR_ZERO(hwdev);
614 }
615
asus_wmi_probe(struct wmi_device * wdev,const void * context)616 static int asus_wmi_probe(struct wmi_device *wdev, const void *context)
617 {
618 struct asus_wmi_sensors *sensor_data;
619 struct device *dev = &wdev->dev;
620 u32 version = 0;
621
622 if (!dmi_check_system(asus_wmi_dmi_table))
623 return -ENODEV;
624
625 sensor_data = devm_kzalloc(dev, sizeof(*sensor_data), GFP_KERNEL);
626 if (!sensor_data)
627 return -ENOMEM;
628
629 if (asus_wmi_get_version(&version))
630 return -ENODEV;
631
632 if (asus_wmi_get_item_count(&sensor_data->wmi.sensor_count))
633 return -ENODEV;
634
635 if (sensor_data->wmi.sensor_count <= 0 || version < 2) {
636 dev_info(dev, "version: %u with %d sensors is unsupported\n",
637 version, sensor_data->wmi.sensor_count);
638
639 return -ENODEV;
640 }
641
642 mutex_init(&sensor_data->lock);
643
644 dev_set_drvdata(dev, sensor_data);
645
646 return asus_wmi_configure_sensor_setup(dev, sensor_data);
647 }
648
649 static const struct wmi_device_id asus_wmi_id_table[] = {
650 { ASUSWMI_MONITORING_GUID, NULL },
651 { }
652 };
653
654 static struct wmi_driver asus_sensors_wmi_driver = {
655 .driver = {
656 .name = "asus_wmi_sensors",
657 },
658 .id_table = asus_wmi_id_table,
659 .probe = asus_wmi_probe,
660 };
661 module_wmi_driver(asus_sensors_wmi_driver);
662
663 MODULE_AUTHOR("Ed Brindley <kernel@maidavale.org>");
664 MODULE_DESCRIPTION("Asus WMI Sensors Driver");
665 MODULE_LICENSE("GPL");
666