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0001 // SPDX-License-Identifier: GPL-2.0-or-later
0002 /*
0003  * HWMON driver for ASUS motherboards that provides sensor readouts via WMI
0004  * interface present in the UEFI of the X370/X470/B450/X399 Ryzen motherboards.
0005  *
0006  * Copyright (C) 2018-2019 Ed Brindley <kernel@maidavale.org>
0007  *
0008  * WMI interface provides:
0009  * - CPU Core Voltage,
0010  * - CPU SOC Voltage,
0011  * - DRAM Voltage,
0012  * - VDDP Voltage,
0013  * - 1.8V PLL Voltage,
0014  * - +12V Voltage,
0015  * - +5V Voltage,
0016  * - 3VSB Voltage,
0017  * - VBAT Voltage,
0018  * - AVCC3 Voltage,
0019  * - SB 1.05V Voltage,
0020  * - CPU Core Voltage,
0021  * - CPU SOC Voltage,
0022  * - DRAM Voltage,
0023  * - CPU Fan RPM,
0024  * - Chassis Fan 1 RPM,
0025  * - Chassis Fan 2 RPM,
0026  * - Chassis Fan 3 RPM,
0027  * - HAMP Fan RPM,
0028  * - Water Pump RPM,
0029  * - CPU OPT RPM,
0030  * - Water Flow RPM,
0031  * - AIO Pump RPM,
0032  * - CPU Temperature,
0033  * - CPU Socket Temperature,
0034  * - Motherboard Temperature,
0035  * - Chipset Temperature,
0036  * - Tsensor 1 Temperature,
0037  * - CPU VRM Temperature,
0038  * - Water In,
0039  * - Water Out,
0040  * - CPU VRM Output Current.
0041  */
0042 
0043 #include <linux/acpi.h>
0044 #include <linux/dmi.h>
0045 #include <linux/hwmon.h>
0046 #include <linux/init.h>
0047 #include <linux/jiffies.h>
0048 #include <linux/kernel.h>
0049 #include <linux/module.h>
0050 #include <linux/mutex.h>
0051 #include <linux/units.h>
0052 #include <linux/wmi.h>
0053 
0054 #define ASUSWMI_MONITORING_GUID     "466747A0-70EC-11DE-8A39-0800200C9A66"
0055 #define ASUSWMI_METHODID_GET_VALUE  0x52574543 /* RWEC */
0056 #define ASUSWMI_METHODID_UPDATE_BUFFER  0x51574543 /* QWEC */
0057 #define ASUSWMI_METHODID_GET_INFO   0x50574543 /* PWEC */
0058 #define ASUSWMI_METHODID_GET_NUMBER 0x50574572 /* PWEr */
0059 #define ASUSWMI_METHODID_GET_VERSION    0x50574574 /* PWEt */
0060 
0061 #define ASUS_WMI_MAX_STR_SIZE       32
0062 
0063 #define DMI_EXACT_MATCH_ASUS_BOARD_NAME(name) {                 \
0064     .matches = {                                \
0065         DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "ASUSTeK COMPUTER INC."), \
0066         DMI_EXACT_MATCH(DMI_BOARD_NAME, name),              \
0067     },                                  \
0068 }
0069 
0070 static const struct dmi_system_id asus_wmi_dmi_table[] = {
0071     DMI_EXACT_MATCH_ASUS_BOARD_NAME("PRIME X399-A"),
0072     DMI_EXACT_MATCH_ASUS_BOARD_NAME("PRIME X470-PRO"),
0073     DMI_EXACT_MATCH_ASUS_BOARD_NAME("ROG CROSSHAIR VI EXTREME"),
0074     DMI_EXACT_MATCH_ASUS_BOARD_NAME("CROSSHAIR VI HERO"),
0075     DMI_EXACT_MATCH_ASUS_BOARD_NAME("ROG CROSSHAIR VI HERO (WI-FI AC)"),
0076     DMI_EXACT_MATCH_ASUS_BOARD_NAME("ROG CROSSHAIR VII HERO"),
0077     DMI_EXACT_MATCH_ASUS_BOARD_NAME("ROG CROSSHAIR VII HERO (WI-FI)"),
0078     DMI_EXACT_MATCH_ASUS_BOARD_NAME("ROG STRIX B450-E GAMING"),
0079     DMI_EXACT_MATCH_ASUS_BOARD_NAME("ROG STRIX B450-F GAMING"),
0080     DMI_EXACT_MATCH_ASUS_BOARD_NAME("ROG STRIX B450-F GAMING II"),
0081     DMI_EXACT_MATCH_ASUS_BOARD_NAME("ROG STRIX B450-I GAMING"),
0082     DMI_EXACT_MATCH_ASUS_BOARD_NAME("ROG STRIX X399-E GAMING"),
0083     DMI_EXACT_MATCH_ASUS_BOARD_NAME("ROG STRIX X470-F GAMING"),
0084     DMI_EXACT_MATCH_ASUS_BOARD_NAME("ROG STRIX X470-I GAMING"),
0085     DMI_EXACT_MATCH_ASUS_BOARD_NAME("ROG ZENITH EXTREME"),
0086     DMI_EXACT_MATCH_ASUS_BOARD_NAME("ROG ZENITH EXTREME ALPHA"),
0087     {}
0088 };
0089 MODULE_DEVICE_TABLE(dmi, asus_wmi_dmi_table);
0090 
0091 enum asus_wmi_sensor_class {
0092     VOLTAGE     = 0x0,
0093     TEMPERATURE_C   = 0x1,
0094     FAN_RPM     = 0x2,
0095     CURRENT     = 0x3,
0096     WATER_FLOW  = 0x4,
0097 };
0098 
0099 enum asus_wmi_location {
0100     CPU     = 0x0,
0101     CPU_SOC     = 0x1,
0102     DRAM        = 0x2,
0103     MOTHERBOARD = 0x3,
0104     CHIPSET     = 0x4,
0105     AUX     = 0x5,
0106     VRM     = 0x6,
0107     COOLER      = 0x7
0108 };
0109 
0110 enum asus_wmi_type {
0111     SIGNED_INT  = 0x0,
0112     UNSIGNED_INT    = 0x1,
0113     SCALED      = 0x3,
0114 };
0115 
0116 enum asus_wmi_source {
0117     SIO     = 0x1,
0118     EC      = 0x2
0119 };
0120 
0121 static enum hwmon_sensor_types asus_data_types[] = {
0122     [VOLTAGE]   = hwmon_in,
0123     [TEMPERATURE_C] = hwmon_temp,
0124     [FAN_RPM]   = hwmon_fan,
0125     [CURRENT]   = hwmon_curr,
0126     [WATER_FLOW]    = hwmon_fan,
0127 };
0128 
0129 static u32 hwmon_attributes[hwmon_max] = {
0130     [hwmon_chip]    = HWMON_C_REGISTER_TZ,
0131     [hwmon_temp]    = HWMON_T_INPUT | HWMON_T_LABEL,
0132     [hwmon_in]  = HWMON_I_INPUT | HWMON_I_LABEL,
0133     [hwmon_curr]    = HWMON_C_INPUT | HWMON_C_LABEL,
0134     [hwmon_fan] = HWMON_F_INPUT | HWMON_F_LABEL,
0135 };
0136 
0137 /**
0138  * struct asus_wmi_sensor_info - sensor info.
0139  * @id: sensor id.
0140  * @data_type: sensor class e.g. voltage, temp etc.
0141  * @location: sensor location.
0142  * @name: sensor name.
0143  * @source: sensor source.
0144  * @type: sensor type signed, unsigned etc.
0145  * @cached_value: cached sensor value.
0146  */
0147 struct asus_wmi_sensor_info {
0148     u32 id;
0149     int data_type;
0150     int location;
0151     char name[ASUS_WMI_MAX_STR_SIZE];
0152     int source;
0153     int type;
0154     long cached_value;
0155 };
0156 
0157 struct asus_wmi_wmi_info {
0158     unsigned long source_last_updated[3];   /* in jiffies */
0159     int sensor_count;
0160 
0161     const struct asus_wmi_sensor_info **info[hwmon_max];
0162     struct asus_wmi_sensor_info **info_by_id;
0163 };
0164 
0165 struct asus_wmi_sensors {
0166     struct asus_wmi_wmi_info wmi;
0167     /* lock access to internal cache */
0168     struct mutex lock;
0169 };
0170 
0171 /*
0172  * Universal method for calling WMI method
0173  */
0174 static int asus_wmi_call_method(u32 method_id, u32 *args, struct acpi_buffer *output)
0175 {
0176     struct acpi_buffer input = {(acpi_size) sizeof(*args), args };
0177     acpi_status status;
0178 
0179     status = wmi_evaluate_method(ASUSWMI_MONITORING_GUID, 0,
0180                      method_id, &input, output);
0181     if (ACPI_FAILURE(status))
0182         return -EIO;
0183 
0184     return 0;
0185 }
0186 
0187 /*
0188  * Gets the version of the ASUS sensors interface implemented
0189  */
0190 static int asus_wmi_get_version(u32 *version)
0191 {
0192     struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
0193     u32 args[] = {0, 0, 0};
0194     union acpi_object *obj;
0195     int err;
0196 
0197     err = asus_wmi_call_method(ASUSWMI_METHODID_GET_VERSION, args, &output);
0198     if (err)
0199         return err;
0200 
0201     obj = output.pointer;
0202     if (!obj)
0203         return -EIO;
0204 
0205     if (obj->type != ACPI_TYPE_INTEGER) {
0206         err = -EIO;
0207         goto out_free_obj;
0208     }
0209 
0210     err = 0;
0211     *version = obj->integer.value;
0212 
0213 out_free_obj:
0214     ACPI_FREE(obj);
0215     return err;
0216 }
0217 
0218 /*
0219  * Gets the number of sensor items
0220  */
0221 static int asus_wmi_get_item_count(u32 *count)
0222 {
0223     struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
0224     u32 args[] = {0, 0, 0};
0225     union acpi_object *obj;
0226     int err;
0227 
0228     err = asus_wmi_call_method(ASUSWMI_METHODID_GET_NUMBER, args, &output);
0229     if (err)
0230         return err;
0231 
0232     obj = output.pointer;
0233     if (!obj)
0234         return -EIO;
0235 
0236     if (obj->type != ACPI_TYPE_INTEGER) {
0237         err = -EIO;
0238         goto out_free_obj;
0239     }
0240 
0241     err = 0;
0242     *count = obj->integer.value;
0243 
0244 out_free_obj:
0245     ACPI_FREE(obj);
0246     return err;
0247 }
0248 
0249 static int asus_wmi_hwmon_add_chan_info(struct hwmon_channel_info *asus_wmi_hwmon_chan,
0250                     struct device *dev, int num,
0251                     enum hwmon_sensor_types type, u32 config)
0252 {
0253     u32 *cfg;
0254 
0255     cfg = devm_kcalloc(dev, num + 1, sizeof(*cfg), GFP_KERNEL);
0256     if (!cfg)
0257         return -ENOMEM;
0258 
0259     asus_wmi_hwmon_chan->type = type;
0260     asus_wmi_hwmon_chan->config = cfg;
0261     memset32(cfg, config, num);
0262 
0263     return 0;
0264 }
0265 
0266 /*
0267  * For a given sensor item returns details e.g. type (voltage/temperature/fan speed etc), bank etc
0268  */
0269 static int asus_wmi_sensor_info(int index, struct asus_wmi_sensor_info *s)
0270 {
0271     union acpi_object name_obj, data_type_obj, location_obj, source_obj, type_obj;
0272     struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
0273     u32 args[] = {index, 0};
0274     union acpi_object *obj;
0275     int err;
0276 
0277     err = asus_wmi_call_method(ASUSWMI_METHODID_GET_INFO, args, &output);
0278     if (err)
0279         return err;
0280 
0281     s->id = index;
0282 
0283     obj = output.pointer;
0284     if (!obj)
0285         return -EIO;
0286 
0287     if (obj->type != ACPI_TYPE_PACKAGE) {
0288         err = -EIO;
0289         goto out_free_obj;
0290     }
0291 
0292     if (obj->package.count != 5) {
0293         err = -EIO;
0294         goto out_free_obj;
0295     }
0296 
0297     name_obj = obj->package.elements[0];
0298     if (name_obj.type != ACPI_TYPE_STRING) {
0299         err = -EIO;
0300         goto out_free_obj;
0301     }
0302 
0303     strncpy(s->name, name_obj.string.pointer, sizeof(s->name) - 1);
0304 
0305     data_type_obj = obj->package.elements[1];
0306     if (data_type_obj.type != ACPI_TYPE_INTEGER) {
0307         err = -EIO;
0308         goto out_free_obj;
0309     }
0310 
0311     s->data_type = data_type_obj.integer.value;
0312 
0313     location_obj = obj->package.elements[2];
0314     if (location_obj.type != ACPI_TYPE_INTEGER) {
0315         err = -EIO;
0316         goto out_free_obj;
0317     }
0318 
0319     s->location = location_obj.integer.value;
0320 
0321     source_obj = obj->package.elements[3];
0322     if (source_obj.type != ACPI_TYPE_INTEGER) {
0323         err = -EIO;
0324         goto out_free_obj;
0325     }
0326 
0327     s->source = source_obj.integer.value;
0328 
0329     type_obj = obj->package.elements[4];
0330     if (type_obj.type != ACPI_TYPE_INTEGER) {
0331         err = -EIO;
0332         goto out_free_obj;
0333     }
0334 
0335     err = 0;
0336     s->type = type_obj.integer.value;
0337 
0338 out_free_obj:
0339     ACPI_FREE(obj);
0340     return err;
0341 }
0342 
0343 static int asus_wmi_update_buffer(int source)
0344 {
0345     struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
0346     u32 args[] = {source, 0};
0347 
0348     return asus_wmi_call_method(ASUSWMI_METHODID_UPDATE_BUFFER, args, &output);
0349 }
0350 
0351 static int asus_wmi_get_sensor_value(u8 index, long *value)
0352 {
0353     struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
0354     u32 args[] = {index, 0};
0355     union acpi_object *obj;
0356     int err;
0357 
0358     err = asus_wmi_call_method(ASUSWMI_METHODID_GET_VALUE, args, &output);
0359     if (err)
0360         return err;
0361 
0362     obj = output.pointer;
0363     if (!obj)
0364         return -EIO;
0365 
0366     if (obj->type != ACPI_TYPE_INTEGER) {
0367         err = -EIO;
0368         goto out_free_obj;
0369     }
0370 
0371     err = 0;
0372     *value = obj->integer.value;
0373 
0374 out_free_obj:
0375     ACPI_FREE(obj);
0376     return err;
0377 }
0378 
0379 static int asus_wmi_update_values_for_source(u8 source, struct asus_wmi_sensors *sensor_data)
0380 {
0381     struct asus_wmi_sensor_info *sensor;
0382     long value = 0;
0383     int ret;
0384     int i;
0385 
0386     for (i = 0; i < sensor_data->wmi.sensor_count; i++) {
0387         sensor = sensor_data->wmi.info_by_id[i];
0388         if (sensor && sensor->source == source) {
0389             ret = asus_wmi_get_sensor_value(sensor->id, &value);
0390             if (ret)
0391                 return ret;
0392 
0393             sensor->cached_value = value;
0394         }
0395     }
0396 
0397     return 0;
0398 }
0399 
0400 static int asus_wmi_scale_sensor_value(u32 value, int data_type)
0401 {
0402     /* FAN_RPM and WATER_FLOW don't need scaling */
0403     switch (data_type) {
0404     case VOLTAGE:
0405         /* value in microVolts */
0406         return DIV_ROUND_CLOSEST(value,  KILO);
0407     case TEMPERATURE_C:
0408         /* value in Celsius */
0409         return value * MILLIDEGREE_PER_DEGREE;
0410     case CURRENT:
0411         /* value in Amperes */
0412         return value * MILLI;
0413     }
0414     return value;
0415 }
0416 
0417 static int asus_wmi_get_cached_value_or_update(const struct asus_wmi_sensor_info *sensor,
0418                            struct asus_wmi_sensors *sensor_data,
0419                            u32 *value)
0420 {
0421     int ret = 0;
0422 
0423     mutex_lock(&sensor_data->lock);
0424 
0425     if (time_after(jiffies, sensor_data->wmi.source_last_updated[sensor->source] + HZ)) {
0426         ret = asus_wmi_update_buffer(sensor->source);
0427         if (ret)
0428             goto unlock;
0429 
0430         ret = asus_wmi_update_values_for_source(sensor->source, sensor_data);
0431         if (ret)
0432             goto unlock;
0433 
0434         sensor_data->wmi.source_last_updated[sensor->source] = jiffies;
0435     }
0436 
0437     *value = sensor->cached_value;
0438 
0439 unlock:
0440     mutex_unlock(&sensor_data->lock);
0441 
0442     return ret;
0443 }
0444 
0445 /* Now follow the functions that implement the hwmon interface */
0446 static int asus_wmi_hwmon_read(struct device *dev, enum hwmon_sensor_types type,
0447                    u32 attr, int channel, long *val)
0448 {
0449     const struct asus_wmi_sensor_info *sensor;
0450     u32 value = 0;
0451     int ret;
0452 
0453     struct asus_wmi_sensors *sensor_data = dev_get_drvdata(dev);
0454 
0455     sensor = *(sensor_data->wmi.info[type] + channel);
0456 
0457     ret = asus_wmi_get_cached_value_or_update(sensor, sensor_data, &value);
0458     if (ret)
0459         return ret;
0460 
0461     *val = asus_wmi_scale_sensor_value(value, sensor->data_type);
0462 
0463     return ret;
0464 }
0465 
0466 static int asus_wmi_hwmon_read_string(struct device *dev,
0467                       enum hwmon_sensor_types type, u32 attr,
0468                       int channel, const char **str)
0469 {
0470     struct asus_wmi_sensors *sensor_data = dev_get_drvdata(dev);
0471     const struct asus_wmi_sensor_info *sensor;
0472 
0473     sensor = *(sensor_data->wmi.info[type] + channel);
0474     *str = sensor->name;
0475 
0476     return 0;
0477 }
0478 
0479 static umode_t asus_wmi_hwmon_is_visible(const void *drvdata,
0480                      enum hwmon_sensor_types type, u32 attr,
0481                      int channel)
0482 {
0483     const struct asus_wmi_sensors *sensor_data = drvdata;
0484     const struct asus_wmi_sensor_info *sensor;
0485 
0486     sensor = *(sensor_data->wmi.info[type] + channel);
0487     if (sensor)
0488         return 0444;
0489 
0490     return 0;
0491 }
0492 
0493 static const struct hwmon_ops asus_wmi_hwmon_ops = {
0494     .is_visible = asus_wmi_hwmon_is_visible,
0495     .read = asus_wmi_hwmon_read,
0496     .read_string = asus_wmi_hwmon_read_string,
0497 };
0498 
0499 static struct hwmon_chip_info asus_wmi_chip_info = {
0500     .ops = &asus_wmi_hwmon_ops,
0501     .info = NULL,
0502 };
0503 
0504 static int asus_wmi_configure_sensor_setup(struct device *dev,
0505                        struct asus_wmi_sensors *sensor_data)
0506 {
0507     const struct hwmon_channel_info **ptr_asus_wmi_ci;
0508     struct hwmon_channel_info *asus_wmi_hwmon_chan;
0509     int nr_count[hwmon_max] = {}, nr_types = 0;
0510     struct asus_wmi_sensor_info *temp_sensor;
0511     const struct hwmon_chip_info *chip_info;
0512     enum hwmon_sensor_types type;
0513     struct device *hwdev;
0514     int i, idx;
0515     int err;
0516 
0517     for (i = 0; i < sensor_data->wmi.sensor_count; i++) {
0518         struct asus_wmi_sensor_info sensor;
0519 
0520         err = asus_wmi_sensor_info(i, &sensor);
0521         if (err)
0522             return err;
0523 
0524         switch (sensor.data_type) {
0525         case TEMPERATURE_C:
0526         case VOLTAGE:
0527         case CURRENT:
0528         case FAN_RPM:
0529         case WATER_FLOW:
0530             type = asus_data_types[sensor.data_type];
0531             if (!nr_count[type])
0532                 nr_types++;
0533             nr_count[type]++;
0534             break;
0535         }
0536     }
0537 
0538     if (nr_count[hwmon_temp])
0539         nr_count[hwmon_chip]++, nr_types++;
0540 
0541     asus_wmi_hwmon_chan = devm_kcalloc(dev, nr_types,
0542                        sizeof(*asus_wmi_hwmon_chan),
0543                        GFP_KERNEL);
0544     if (!asus_wmi_hwmon_chan)
0545         return -ENOMEM;
0546 
0547     ptr_asus_wmi_ci = devm_kcalloc(dev, nr_types + 1,
0548                        sizeof(*ptr_asus_wmi_ci), GFP_KERNEL);
0549     if (!ptr_asus_wmi_ci)
0550         return -ENOMEM;
0551 
0552     asus_wmi_chip_info.info = ptr_asus_wmi_ci;
0553     chip_info = &asus_wmi_chip_info;
0554 
0555     sensor_data->wmi.info_by_id = devm_kcalloc(dev, sensor_data->wmi.sensor_count,
0556                            sizeof(*sensor_data->wmi.info_by_id),
0557                            GFP_KERNEL);
0558 
0559     if (!sensor_data->wmi.info_by_id)
0560         return -ENOMEM;
0561 
0562     for (type = 0; type < hwmon_max; type++) {
0563         if (!nr_count[type])
0564             continue;
0565 
0566         err = asus_wmi_hwmon_add_chan_info(asus_wmi_hwmon_chan, dev,
0567                            nr_count[type], type,
0568                            hwmon_attributes[type]);
0569         if (err)
0570             return err;
0571 
0572         *ptr_asus_wmi_ci++ = asus_wmi_hwmon_chan++;
0573 
0574         sensor_data->wmi.info[type] = devm_kcalloc(dev,
0575                                nr_count[type],
0576                                sizeof(*sensor_data->wmi.info),
0577                                GFP_KERNEL);
0578         if (!sensor_data->wmi.info[type])
0579             return -ENOMEM;
0580     }
0581 
0582     for (i = sensor_data->wmi.sensor_count - 1; i >= 0; i--) {
0583         temp_sensor = devm_kzalloc(dev, sizeof(*temp_sensor), GFP_KERNEL);
0584         if (!temp_sensor)
0585             return -ENOMEM;
0586 
0587         err = asus_wmi_sensor_info(i, temp_sensor);
0588         if (err)
0589             continue;
0590 
0591         switch (temp_sensor->data_type) {
0592         case TEMPERATURE_C:
0593         case VOLTAGE:
0594         case CURRENT:
0595         case FAN_RPM:
0596         case WATER_FLOW:
0597             type = asus_data_types[temp_sensor->data_type];
0598             idx = --nr_count[type];
0599             *(sensor_data->wmi.info[type] + idx) = temp_sensor;
0600             sensor_data->wmi.info_by_id[i] = temp_sensor;
0601             break;
0602         }
0603     }
0604 
0605     dev_dbg(dev, "board has %d sensors",
0606         sensor_data->wmi.sensor_count);
0607 
0608     hwdev = devm_hwmon_device_register_with_info(dev, "asus_wmi_sensors",
0609                              sensor_data, chip_info, NULL);
0610 
0611     return PTR_ERR_OR_ZERO(hwdev);
0612 }
0613 
0614 static int asus_wmi_probe(struct wmi_device *wdev, const void *context)
0615 {
0616     struct asus_wmi_sensors *sensor_data;
0617     struct device *dev = &wdev->dev;
0618     u32 version = 0;
0619 
0620     if (!dmi_check_system(asus_wmi_dmi_table))
0621         return -ENODEV;
0622 
0623     sensor_data = devm_kzalloc(dev, sizeof(*sensor_data), GFP_KERNEL);
0624     if (!sensor_data)
0625         return -ENOMEM;
0626 
0627     if (asus_wmi_get_version(&version))
0628         return -ENODEV;
0629 
0630     if (asus_wmi_get_item_count(&sensor_data->wmi.sensor_count))
0631         return -ENODEV;
0632 
0633     if (sensor_data->wmi.sensor_count  <= 0 || version < 2) {
0634         dev_info(dev, "version: %u with %d sensors is unsupported\n",
0635              version, sensor_data->wmi.sensor_count);
0636 
0637         return -ENODEV;
0638     }
0639 
0640     mutex_init(&sensor_data->lock);
0641 
0642     dev_set_drvdata(dev, sensor_data);
0643 
0644     return asus_wmi_configure_sensor_setup(dev, sensor_data);
0645 }
0646 
0647 static const struct wmi_device_id asus_wmi_id_table[] = {
0648     { ASUSWMI_MONITORING_GUID, NULL },
0649     { }
0650 };
0651 
0652 static struct wmi_driver asus_sensors_wmi_driver = {
0653     .driver = {
0654         .name = "asus_wmi_sensors",
0655     },
0656     .id_table = asus_wmi_id_table,
0657     .probe = asus_wmi_probe,
0658 };
0659 module_wmi_driver(asus_sensors_wmi_driver);
0660 
0661 MODULE_AUTHOR("Ed Brindley <kernel@maidavale.org>");
0662 MODULE_DESCRIPTION("Asus WMI Sensors Driver");
0663 MODULE_LICENSE("GPL");
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