1 // SPDX-License-Identifier: GPL-2.0-only
3 * w83l786ng.c - Linux kernel driver for hardware monitoring
4 * Copyright (c) 2007 Kevin Lo <kevlo@kevlo.org>
8 * Supports following chips:
10 * Chip #vin #fanin #pwm #temp wchipid vendid i2c ISA
11 * w83l786ng 3 2 2 2 0x7b 0x5ca3 yes no
14 #include <linux/module.h>
15 #include <linux/init.h>
16 #include <linux/slab.h>
17 #include <linux/i2c.h>
18 #include <linux/hwmon.h>
19 #include <linux/hwmon-sysfs.h>
20 #include <linux/err.h>
21 #include <linux/mutex.h>
22 #include <linux/jiffies.h>
24 /* Addresses to scan */
25 static const unsigned short normal_i2c[] = { 0x2e, 0x2f, I2C_CLIENT_END };
27 /* Insmod parameters */
30 module_param(reset, bool, 0);
31 MODULE_PARM_DESC(reset, "Set to 1 to reset chip, not recommended");
33 #define W83L786NG_REG_IN_MIN(nr) (0x2C + (nr) * 2)
34 #define W83L786NG_REG_IN_MAX(nr) (0x2B + (nr) * 2)
35 #define W83L786NG_REG_IN(nr) ((nr) + 0x20)
37 #define W83L786NG_REG_FAN(nr) ((nr) + 0x28)
38 #define W83L786NG_REG_FAN_MIN(nr) ((nr) + 0x3B)
40 #define W83L786NG_REG_CONFIG 0x40
41 #define W83L786NG_REG_ALARM1 0x41
42 #define W83L786NG_REG_ALARM2 0x42
43 #define W83L786NG_REG_GPIO_EN 0x47
44 #define W83L786NG_REG_MAN_ID2 0x4C
45 #define W83L786NG_REG_MAN_ID1 0x4D
46 #define W83L786NG_REG_CHIP_ID 0x4E
48 #define W83L786NG_REG_DIODE 0x53
49 #define W83L786NG_REG_FAN_DIV 0x54
50 #define W83L786NG_REG_FAN_CFG 0x80
52 #define W83L786NG_REG_TOLERANCE 0x8D
54 static const u8 W83L786NG_REG_TEMP[2][3] = {
55 { 0x25, /* TEMP 0 in DataSheet */
56 0x35, /* TEMP 0 Over in DataSheet */
57 0x36 }, /* TEMP 0 Hyst in DataSheet */
58 { 0x26, /* TEMP 1 in DataSheet */
59 0x37, /* TEMP 1 Over in DataSheet */
60 0x38 } /* TEMP 1 Hyst in DataSheet */
63 static const u8 W83L786NG_PWM_MODE_SHIFT[] = {6, 7};
64 static const u8 W83L786NG_PWM_ENABLE_SHIFT[] = {2, 4};
66 /* FAN Duty Cycle, be used to control */
67 static const u8 W83L786NG_REG_PWM[] = {0x81, 0x87};
71 FAN_TO_REG(long rpm, int div)
75 rpm = clamp_val(rpm, 1, 1000000);
76 return clamp_val((1350000 + rpm * div / 2) / (rpm * div), 1, 254);
79 #define FAN_FROM_REG(val, div) ((val) == 0 ? -1 : \
81 1350000 / ((val) * (div))))
84 #define TEMP_TO_REG(val) (clamp_val(((val) < 0 ? (val) + 0x100 * 1000 \
85 : (val)) / 1000, 0, 0xff))
86 #define TEMP_FROM_REG(val) (((val) & 0x80 ? \
87 (val) - 0x100 : (val)) * 1000)
90 * The analog voltage inputs have 8mV LSB. Since the sysfs output is
91 * in mV as would be measured on the chip input pin, need to just
92 * multiply/divide by 8 to translate from/to register values.
94 #define IN_TO_REG(val) (clamp_val((((val) + 4) / 8), 0, 255))
95 #define IN_FROM_REG(val) ((val) * 8)
97 #define DIV_FROM_REG(val) (1 << (val))
103 val = clamp_val(val, 1, 128) >> 1;
104 for (i = 0; i < 7; i++) {
112 struct w83l786ng_data {
113 struct i2c_client *client;
114 struct mutex update_lock;
115 bool valid; /* true if following fields are valid */
116 unsigned long last_updated; /* In jiffies */
117 unsigned long last_nonvolatile; /* In jiffies, last time we update the
118 * nonvolatile registers */
129 u8 pwm_mode[2]; /* 0->DC variable voltage
130 * 1->PWM variable duty cycle */
132 u8 pwm_enable[2]; /* 1->manual
133 * 2->thermal cruise (also called SmartFan I) */
138 w83l786ng_read_value(struct i2c_client *client, u8 reg)
140 return i2c_smbus_read_byte_data(client, reg);
144 w83l786ng_write_value(struct i2c_client *client, u8 reg, u8 value)
146 return i2c_smbus_write_byte_data(client, reg, value);
149 static struct w83l786ng_data *w83l786ng_update_device(struct device *dev)
151 struct w83l786ng_data *data = dev_get_drvdata(dev);
152 struct i2c_client *client = data->client;
156 mutex_lock(&data->update_lock);
157 if (time_after(jiffies, data->last_updated + HZ + HZ / 2)
159 dev_dbg(&client->dev, "Updating w83l786ng data.\n");
161 /* Update the voltages measured value and limits */
162 for (i = 0; i < 3; i++) {
163 data->in[i] = w83l786ng_read_value(client,
164 W83L786NG_REG_IN(i));
165 data->in_min[i] = w83l786ng_read_value(client,
166 W83L786NG_REG_IN_MIN(i));
167 data->in_max[i] = w83l786ng_read_value(client,
168 W83L786NG_REG_IN_MAX(i));
171 /* Update the fan counts and limits */
172 for (i = 0; i < 2; i++) {
173 data->fan[i] = w83l786ng_read_value(client,
174 W83L786NG_REG_FAN(i));
175 data->fan_min[i] = w83l786ng_read_value(client,
176 W83L786NG_REG_FAN_MIN(i));
179 /* Update the fan divisor */
180 reg_tmp = w83l786ng_read_value(client, W83L786NG_REG_FAN_DIV);
181 data->fan_div[0] = reg_tmp & 0x07;
182 data->fan_div[1] = (reg_tmp >> 4) & 0x07;
184 pwmcfg = w83l786ng_read_value(client, W83L786NG_REG_FAN_CFG);
185 for (i = 0; i < 2; i++) {
187 ((pwmcfg >> W83L786NG_PWM_MODE_SHIFT[i]) & 1)
189 data->pwm_enable[i] =
190 ((pwmcfg >> W83L786NG_PWM_ENABLE_SHIFT[i]) & 3) + 1;
192 (w83l786ng_read_value(client, W83L786NG_REG_PWM[i])
197 /* Update the temperature sensors */
198 for (i = 0; i < 2; i++) {
199 for (j = 0; j < 3; j++) {
200 data->temp[i][j] = w83l786ng_read_value(client,
201 W83L786NG_REG_TEMP[i][j]);
205 /* Update Smart Fan I/II tolerance */
206 reg_tmp = w83l786ng_read_value(client, W83L786NG_REG_TOLERANCE);
207 data->tolerance[0] = reg_tmp & 0x0f;
208 data->tolerance[1] = (reg_tmp >> 4) & 0x0f;
210 data->last_updated = jiffies;
215 mutex_unlock(&data->update_lock);
220 /* following are the sysfs callback functions */
221 #define show_in_reg(reg) \
223 show_##reg(struct device *dev, struct device_attribute *attr, \
226 int nr = to_sensor_dev_attr(attr)->index; \
227 struct w83l786ng_data *data = w83l786ng_update_device(dev); \
228 return sprintf(buf, "%d\n", IN_FROM_REG(data->reg[nr])); \
235 #define store_in_reg(REG, reg) \
237 store_in_##reg(struct device *dev, struct device_attribute *attr, \
238 const char *buf, size_t count) \
240 int nr = to_sensor_dev_attr(attr)->index; \
241 struct w83l786ng_data *data = dev_get_drvdata(dev); \
242 struct i2c_client *client = data->client; \
244 int err = kstrtoul(buf, 10, &val); \
247 mutex_lock(&data->update_lock); \
248 data->in_##reg[nr] = IN_TO_REG(val); \
249 w83l786ng_write_value(client, W83L786NG_REG_IN_##REG(nr), \
250 data->in_##reg[nr]); \
251 mutex_unlock(&data->update_lock); \
255 store_in_reg(MIN, min)
256 store_in_reg(MAX, max)
258 static struct sensor_device_attribute sda_in_input[] = {
259 SENSOR_ATTR(in0_input, S_IRUGO, show_in, NULL, 0),
260 SENSOR_ATTR(in1_input, S_IRUGO, show_in, NULL, 1),
261 SENSOR_ATTR(in2_input, S_IRUGO, show_in, NULL, 2),
264 static struct sensor_device_attribute sda_in_min[] = {
265 SENSOR_ATTR(in0_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 0),
266 SENSOR_ATTR(in1_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 1),
267 SENSOR_ATTR(in2_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 2),
270 static struct sensor_device_attribute sda_in_max[] = {
271 SENSOR_ATTR(in0_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 0),
272 SENSOR_ATTR(in1_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 1),
273 SENSOR_ATTR(in2_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 2),
276 #define show_fan_reg(reg) \
277 static ssize_t show_##reg(struct device *dev, struct device_attribute *attr, \
280 int nr = to_sensor_dev_attr(attr)->index; \
281 struct w83l786ng_data *data = w83l786ng_update_device(dev); \
282 return sprintf(buf, "%d\n", \
283 FAN_FROM_REG(data->reg[nr], DIV_FROM_REG(data->fan_div[nr]))); \
287 show_fan_reg(fan_min);
290 store_fan_min(struct device *dev, struct device_attribute *attr,
291 const char *buf, size_t count)
293 int nr = to_sensor_dev_attr(attr)->index;
294 struct w83l786ng_data *data = dev_get_drvdata(dev);
295 struct i2c_client *client = data->client;
299 err = kstrtoul(buf, 10, &val);
303 mutex_lock(&data->update_lock);
304 data->fan_min[nr] = FAN_TO_REG(val, DIV_FROM_REG(data->fan_div[nr]));
305 w83l786ng_write_value(client, W83L786NG_REG_FAN_MIN(nr),
307 mutex_unlock(&data->update_lock);
313 show_fan_div(struct device *dev, struct device_attribute *attr,
316 int nr = to_sensor_dev_attr(attr)->index;
317 struct w83l786ng_data *data = w83l786ng_update_device(dev);
318 return sprintf(buf, "%u\n", DIV_FROM_REG(data->fan_div[nr]));
322 * Note: we save and restore the fan minimum here, because its value is
323 * determined in part by the fan divisor. This follows the principle of
324 * least surprise; the user doesn't expect the fan minimum to change just
325 * because the divisor changed.
328 store_fan_div(struct device *dev, struct device_attribute *attr,
329 const char *buf, size_t count)
331 int nr = to_sensor_dev_attr(attr)->index;
332 struct w83l786ng_data *data = dev_get_drvdata(dev);
333 struct i2c_client *client = data->client;
344 err = kstrtoul(buf, 10, &val);
349 mutex_lock(&data->update_lock);
350 min = FAN_FROM_REG(data->fan_min[nr], DIV_FROM_REG(data->fan_div[nr]));
352 data->fan_div[nr] = DIV_TO_REG(val);
365 fan_div_reg = w83l786ng_read_value(client, W83L786NG_REG_FAN_DIV)
368 tmp_fan_div = (data->fan_div[nr] << new_shift) & ~keep_mask;
370 w83l786ng_write_value(client, W83L786NG_REG_FAN_DIV,
371 fan_div_reg | tmp_fan_div);
373 /* Restore fan_min */
374 data->fan_min[nr] = FAN_TO_REG(min, DIV_FROM_REG(data->fan_div[nr]));
375 w83l786ng_write_value(client, W83L786NG_REG_FAN_MIN(nr),
377 mutex_unlock(&data->update_lock);
382 static struct sensor_device_attribute sda_fan_input[] = {
383 SENSOR_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 0),
384 SENSOR_ATTR(fan2_input, S_IRUGO, show_fan, NULL, 1),
387 static struct sensor_device_attribute sda_fan_min[] = {
388 SENSOR_ATTR(fan1_min, S_IWUSR | S_IRUGO, show_fan_min,
390 SENSOR_ATTR(fan2_min, S_IWUSR | S_IRUGO, show_fan_min,
394 static struct sensor_device_attribute sda_fan_div[] = {
395 SENSOR_ATTR(fan1_div, S_IWUSR | S_IRUGO, show_fan_div,
397 SENSOR_ATTR(fan2_div, S_IWUSR | S_IRUGO, show_fan_div,
402 /* read/write the temperature, includes measured value and limits */
405 show_temp(struct device *dev, struct device_attribute *attr, char *buf)
407 struct sensor_device_attribute_2 *sensor_attr =
408 to_sensor_dev_attr_2(attr);
409 int nr = sensor_attr->nr;
410 int index = sensor_attr->index;
411 struct w83l786ng_data *data = w83l786ng_update_device(dev);
412 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp[nr][index]));
416 store_temp(struct device *dev, struct device_attribute *attr,
417 const char *buf, size_t count)
419 struct sensor_device_attribute_2 *sensor_attr =
420 to_sensor_dev_attr_2(attr);
421 int nr = sensor_attr->nr;
422 int index = sensor_attr->index;
423 struct w83l786ng_data *data = dev_get_drvdata(dev);
424 struct i2c_client *client = data->client;
428 err = kstrtol(buf, 10, &val);
432 mutex_lock(&data->update_lock);
433 data->temp[nr][index] = TEMP_TO_REG(val);
434 w83l786ng_write_value(client, W83L786NG_REG_TEMP[nr][index],
435 data->temp[nr][index]);
436 mutex_unlock(&data->update_lock);
441 static struct sensor_device_attribute_2 sda_temp_input[] = {
442 SENSOR_ATTR_2(temp1_input, S_IRUGO, show_temp, NULL, 0, 0),
443 SENSOR_ATTR_2(temp2_input, S_IRUGO, show_temp, NULL, 1, 0),
446 static struct sensor_device_attribute_2 sda_temp_max[] = {
447 SENSOR_ATTR_2(temp1_max, S_IRUGO | S_IWUSR,
448 show_temp, store_temp, 0, 1),
449 SENSOR_ATTR_2(temp2_max, S_IRUGO | S_IWUSR,
450 show_temp, store_temp, 1, 1),
453 static struct sensor_device_attribute_2 sda_temp_max_hyst[] = {
454 SENSOR_ATTR_2(temp1_max_hyst, S_IRUGO | S_IWUSR,
455 show_temp, store_temp, 0, 2),
456 SENSOR_ATTR_2(temp2_max_hyst, S_IRUGO | S_IWUSR,
457 show_temp, store_temp, 1, 2),
460 #define show_pwm_reg(reg) \
461 static ssize_t show_##reg(struct device *dev, struct device_attribute *attr, \
464 struct w83l786ng_data *data = w83l786ng_update_device(dev); \
465 int nr = to_sensor_dev_attr(attr)->index; \
466 return sprintf(buf, "%d\n", data->reg[nr]); \
469 show_pwm_reg(pwm_mode)
470 show_pwm_reg(pwm_enable)
474 store_pwm_mode(struct device *dev, struct device_attribute *attr,
475 const char *buf, size_t count)
477 int nr = to_sensor_dev_attr(attr)->index;
478 struct w83l786ng_data *data = dev_get_drvdata(dev);
479 struct i2c_client *client = data->client;
484 err = kstrtoul(buf, 10, &val);
490 mutex_lock(&data->update_lock);
491 data->pwm_mode[nr] = val;
492 reg = w83l786ng_read_value(client, W83L786NG_REG_FAN_CFG);
493 reg &= ~(1 << W83L786NG_PWM_MODE_SHIFT[nr]);
495 reg |= 1 << W83L786NG_PWM_MODE_SHIFT[nr];
496 w83l786ng_write_value(client, W83L786NG_REG_FAN_CFG, reg);
497 mutex_unlock(&data->update_lock);
502 store_pwm(struct device *dev, struct device_attribute *attr,
503 const char *buf, size_t count)
505 int nr = to_sensor_dev_attr(attr)->index;
506 struct w83l786ng_data *data = dev_get_drvdata(dev);
507 struct i2c_client *client = data->client;
511 err = kstrtoul(buf, 10, &val);
514 val = clamp_val(val, 0, 255);
515 val = DIV_ROUND_CLOSEST(val, 0x11);
517 mutex_lock(&data->update_lock);
518 data->pwm[nr] = val * 0x11;
519 val |= w83l786ng_read_value(client, W83L786NG_REG_PWM[nr]) & 0xf0;
520 w83l786ng_write_value(client, W83L786NG_REG_PWM[nr], val);
521 mutex_unlock(&data->update_lock);
526 store_pwm_enable(struct device *dev, struct device_attribute *attr,
527 const char *buf, size_t count)
529 int nr = to_sensor_dev_attr(attr)->index;
530 struct w83l786ng_data *data = dev_get_drvdata(dev);
531 struct i2c_client *client = data->client;
536 err = kstrtoul(buf, 10, &val);
540 if (!val || val > 2) /* only modes 1 and 2 are supported */
543 mutex_lock(&data->update_lock);
544 reg = w83l786ng_read_value(client, W83L786NG_REG_FAN_CFG);
545 data->pwm_enable[nr] = val;
546 reg &= ~(0x03 << W83L786NG_PWM_ENABLE_SHIFT[nr]);
547 reg |= (val - 1) << W83L786NG_PWM_ENABLE_SHIFT[nr];
548 w83l786ng_write_value(client, W83L786NG_REG_FAN_CFG, reg);
549 mutex_unlock(&data->update_lock);
553 static struct sensor_device_attribute sda_pwm[] = {
554 SENSOR_ATTR(pwm1, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 0),
555 SENSOR_ATTR(pwm2, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 1),
558 static struct sensor_device_attribute sda_pwm_mode[] = {
559 SENSOR_ATTR(pwm1_mode, S_IWUSR | S_IRUGO, show_pwm_mode,
561 SENSOR_ATTR(pwm2_mode, S_IWUSR | S_IRUGO, show_pwm_mode,
565 static struct sensor_device_attribute sda_pwm_enable[] = {
566 SENSOR_ATTR(pwm1_enable, S_IWUSR | S_IRUGO, show_pwm_enable,
567 store_pwm_enable, 0),
568 SENSOR_ATTR(pwm2_enable, S_IWUSR | S_IRUGO, show_pwm_enable,
569 store_pwm_enable, 1),
572 /* For Smart Fan I/Thermal Cruise and Smart Fan II */
574 show_tolerance(struct device *dev, struct device_attribute *attr, char *buf)
576 int nr = to_sensor_dev_attr(attr)->index;
577 struct w83l786ng_data *data = w83l786ng_update_device(dev);
578 return sprintf(buf, "%ld\n", (long)data->tolerance[nr]);
582 store_tolerance(struct device *dev, struct device_attribute *attr,
583 const char *buf, size_t count)
585 int nr = to_sensor_dev_attr(attr)->index;
586 struct w83l786ng_data *data = dev_get_drvdata(dev);
587 struct i2c_client *client = data->client;
588 u8 tol_tmp, tol_mask;
592 err = kstrtoul(buf, 10, &val);
596 mutex_lock(&data->update_lock);
597 tol_mask = w83l786ng_read_value(client,
598 W83L786NG_REG_TOLERANCE) & ((nr == 1) ? 0x0f : 0xf0);
599 tol_tmp = clamp_val(val, 0, 15);
601 data->tolerance[nr] = tol_tmp;
605 w83l786ng_write_value(client, W83L786NG_REG_TOLERANCE,
607 mutex_unlock(&data->update_lock);
611 static struct sensor_device_attribute sda_tolerance[] = {
612 SENSOR_ATTR(pwm1_tolerance, S_IWUSR | S_IRUGO,
613 show_tolerance, store_tolerance, 0),
614 SENSOR_ATTR(pwm2_tolerance, S_IWUSR | S_IRUGO,
615 show_tolerance, store_tolerance, 1),
619 #define IN_UNIT_ATTRS(X) \
620 &sda_in_input[X].dev_attr.attr, \
621 &sda_in_min[X].dev_attr.attr, \
622 &sda_in_max[X].dev_attr.attr
624 #define FAN_UNIT_ATTRS(X) \
625 &sda_fan_input[X].dev_attr.attr, \
626 &sda_fan_min[X].dev_attr.attr, \
627 &sda_fan_div[X].dev_attr.attr
629 #define TEMP_UNIT_ATTRS(X) \
630 &sda_temp_input[X].dev_attr.attr, \
631 &sda_temp_max[X].dev_attr.attr, \
632 &sda_temp_max_hyst[X].dev_attr.attr
634 #define PWM_UNIT_ATTRS(X) \
635 &sda_pwm[X].dev_attr.attr, \
636 &sda_pwm_mode[X].dev_attr.attr, \
637 &sda_pwm_enable[X].dev_attr.attr
639 #define TOLERANCE_UNIT_ATTRS(X) \
640 &sda_tolerance[X].dev_attr.attr
642 static struct attribute *w83l786ng_attrs[] = {
652 TOLERANCE_UNIT_ATTRS(0),
653 TOLERANCE_UNIT_ATTRS(1),
657 ATTRIBUTE_GROUPS(w83l786ng);
660 w83l786ng_detect(struct i2c_client *client, struct i2c_board_info *info)
662 struct i2c_adapter *adapter = client->adapter;
666 if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
670 if ((w83l786ng_read_value(client, W83L786NG_REG_CONFIG) & 0x80)) {
671 dev_dbg(&adapter->dev, "W83L786NG detection failed at 0x%02x\n",
677 man_id = (w83l786ng_read_value(client, W83L786NG_REG_MAN_ID1) << 8) +
678 w83l786ng_read_value(client, W83L786NG_REG_MAN_ID2);
679 chip_id = w83l786ng_read_value(client, W83L786NG_REG_CHIP_ID);
681 if (man_id != 0x5CA3 || /* Winbond */
682 chip_id != 0x80) { /* W83L786NG */
683 dev_dbg(&adapter->dev,
684 "Unsupported chip (man_id=0x%04X, chip_id=0x%02X)\n",
689 strscpy(info->type, "w83l786ng", I2C_NAME_SIZE);
694 static void w83l786ng_init_client(struct i2c_client *client)
699 w83l786ng_write_value(client, W83L786NG_REG_CONFIG, 0x80);
701 /* Start monitoring */
702 tmp = w83l786ng_read_value(client, W83L786NG_REG_CONFIG);
704 w83l786ng_write_value(client, W83L786NG_REG_CONFIG, tmp | 0x01);
708 w83l786ng_probe(struct i2c_client *client)
710 struct device *dev = &client->dev;
711 struct w83l786ng_data *data;
712 struct device *hwmon_dev;
716 data = devm_kzalloc(dev, sizeof(struct w83l786ng_data), GFP_KERNEL);
720 data->client = client;
721 mutex_init(&data->update_lock);
723 /* Initialize the chip */
724 w83l786ng_init_client(client);
726 /* A few vars need to be filled upon startup */
727 for (i = 0; i < 2; i++) {
728 data->fan_min[i] = w83l786ng_read_value(client,
729 W83L786NG_REG_FAN_MIN(i));
732 /* Update the fan divisor */
733 reg_tmp = w83l786ng_read_value(client, W83L786NG_REG_FAN_DIV);
734 data->fan_div[0] = reg_tmp & 0x07;
735 data->fan_div[1] = (reg_tmp >> 4) & 0x07;
737 hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name,
740 return PTR_ERR_OR_ZERO(hwmon_dev);
743 static const struct i2c_device_id w83l786ng_id[] = {
747 MODULE_DEVICE_TABLE(i2c, w83l786ng_id);
749 static struct i2c_driver w83l786ng_driver = {
750 .class = I2C_CLASS_HWMON,
754 .probe = w83l786ng_probe,
755 .id_table = w83l786ng_id,
756 .detect = w83l786ng_detect,
757 .address_list = normal_i2c,
760 module_i2c_driver(w83l786ng_driver);
762 MODULE_AUTHOR("Kevin Lo");
763 MODULE_DESCRIPTION("w83l786ng driver");
764 MODULE_LICENSE("GPL");