// SPDX-License-Identifier: GPL-2.0-or-later /* * w83792d.c - Part of lm_sensors, Linux kernel modules for hardware * monitoring * Copyright (C) 2004, 2005 Winbond Electronics Corp. * Shane Huang, * Rudolf Marek <[email protected]> * * Note: * 1. This driver is only for 2.6 kernel, 2.4 kernel need a different driver. * 2. This driver is only for Winbond W83792D C version device, there * are also some motherboards with B version W83792D device. The * calculation method to in6-in7(measured value, limits) is a little * different between C and B version. C or B version can be identified * by CR[0x49h]. */ /* * Supports following chips: * * Chip #vin #fanin #pwm #temp wchipid vendid i2c ISA * w83792d 9 7 7 3 0x7a 0x5ca3 yes no */ #include <linux/module.h> #include <linux/init.h> #include <linux/slab.h> #include <linux/i2c.h> #include <linux/hwmon.h> #include <linux/hwmon-sysfs.h> #include <linux/err.h> #include <linux/mutex.h> #include <linux/sysfs.h> #include <linux/jiffies.h> /* Addresses to scan */ static const unsigned short normal_i2c[] = …; /* Insmod parameters */ static unsigned short force_subclients[4]; module_param_array(…); MODULE_PARM_DESC(…) …; static bool init; module_param(init, bool, 0); MODULE_PARM_DESC(…) …; /* The W83792D registers */ static const u8 W83792D_REG_IN[9] = …; #define W83792D_REG_LOW_BITS1 … #define W83792D_REG_LOW_BITS2 … static const u8 W83792D_REG_IN_MAX[9] = …; static const u8 W83792D_REG_IN_MIN[9] = …; static const u8 W83792D_REG_FAN[7] = …; static const u8 W83792D_REG_FAN_MIN[7] = …; #define W83792D_REG_FAN_CFG … static const u8 W83792D_REG_FAN_DIV[4] = …; static const u8 W83792D_REG_PWM[7] = …; #define W83792D_REG_BANK … #define W83792D_REG_TEMP2_CONFIG … #define W83792D_REG_TEMP3_CONFIG … static const u8 W83792D_REG_TEMP1[3] = …; static const u8 W83792D_REG_TEMP_ADD[2][6] = …; static const u8 W83792D_REG_THERMAL[3] = …; static const u8 W83792D_REG_TOLERANCE[3] = …; static const u8 W83792D_REG_POINTS[3][4] = …; static const u8 W83792D_REG_LEVELS[3][4] = …; #define W83792D_REG_GPIO_EN … #define W83792D_REG_CONFIG … #define W83792D_REG_VID_FANDIV … #define W83792D_REG_CHIPID … #define W83792D_REG_WCHIPID … #define W83792D_REG_CHIPMAN … #define W83792D_REG_PIN … #define W83792D_REG_I2C_SUBADDR … #define W83792D_REG_ALARM1 … #define W83792D_REG_ALARM2 … #define W83792D_REG_ALARM3 … #define W83792D_REG_CHASSIS … #define W83792D_REG_CHASSIS_CLR … /* control in0/in1 's limit modifiability */ #define W83792D_REG_VID_IN_B … #define W83792D_REG_VBAT … #define W83792D_REG_I2C_ADDR … /* * Conversions. Rounding and limit checking is only done on the TO_REG * variants. Note that you should be a bit careful with which arguments * these macros are called: arguments may be evaluated more than once. * Fixing this is just not worth it. */ #define IN_FROM_REG(nr, val) … #define IN_TO_REG(nr, val) … static inline u8 FAN_TO_REG(long rpm, int div) { … } #define FAN_FROM_REG(val, div) … /* for temp1 */ #define TEMP1_TO_REG(val) … #define TEMP1_FROM_REG(val) … /* for temp2 and temp3, because they need additional resolution */ #define TEMP_ADD_FROM_REG(val1, val2) … #define TEMP_ADD_TO_REG_HIGH(val) … #define TEMP_ADD_TO_REG_LOW(val) … #define DIV_FROM_REG(val) … static inline u8 DIV_TO_REG(long val) { … } struct w83792d_data { … }; static int w83792d_probe(struct i2c_client *client); static int w83792d_detect(struct i2c_client *client, struct i2c_board_info *info); static void w83792d_remove(struct i2c_client *client); static struct w83792d_data *w83792d_update_device(struct device *dev); #ifdef DEBUG static void w83792d_print_debug(struct w83792d_data *data, struct device *dev); #endif static void w83792d_init_client(struct i2c_client *client); static const struct i2c_device_id w83792d_id[] = …; MODULE_DEVICE_TABLE(i2c, w83792d_id); static struct i2c_driver w83792d_driver = …; static inline long in_count_from_reg(int nr, struct w83792d_data *data) { … } /* * The SMBus locks itself. The Winbond W83792D chip has a bank register, * but the driver only accesses registers in bank 0, so we don't have * to switch banks and lock access between switches. */ static inline int w83792d_read_value(struct i2c_client *client, u8 reg) { … } static inline int w83792d_write_value(struct i2c_client *client, u8 reg, u8 value) { … } /* following are the sysfs callback functions */ static ssize_t show_in(struct device *dev, struct device_attribute *attr, char *buf) { … } #define show_in_reg(reg) … show_in_reg(in_min); show_in_reg(in_max); #define store_in_reg(REG, reg) … store_in_reg(MIN, min); store_in_reg(MAX, max); #define show_fan_reg(reg) … show_fan_reg(fan); show_fan_reg(fan_min); static ssize_t store_fan_min(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { … } static ssize_t show_fan_div(struct device *dev, struct device_attribute *attr, char *buf) { … } /* * Note: we save and restore the fan minimum here, because its value is * determined in part by the fan divisor. This follows the principle of * least surprise; the user doesn't expect the fan minimum to change just * because the divisor changed. */ static ssize_t store_fan_div(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { … } /* read/write the temperature1, includes measured value and limits */ static ssize_t show_temp1(struct device *dev, struct device_attribute *attr, char *buf) { … } static ssize_t store_temp1(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { … } /* read/write the temperature2-3, includes measured value and limits */ static ssize_t show_temp23(struct device *dev, struct device_attribute *attr, char *buf) { … } static ssize_t store_temp23(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { … } /* get realtime status of all sensors items: voltage, temp, fan */ static ssize_t alarms_show(struct device *dev, struct device_attribute *attr, char *buf) { … } static ssize_t show_alarm(struct device *dev, struct device_attribute *attr, char *buf) { … } static ssize_t show_pwm(struct device *dev, struct device_attribute *attr, char *buf) { … } static ssize_t show_pwmenable(struct device *dev, struct device_attribute *attr, char *buf) { … } static ssize_t store_pwm(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { … } static ssize_t store_pwmenable(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { … } static ssize_t show_pwm_mode(struct device *dev, struct device_attribute *attr, char *buf) { … } static ssize_t store_pwm_mode(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { … } static ssize_t intrusion0_alarm_show(struct device *dev, struct device_attribute *attr, char *buf) { … } static ssize_t intrusion0_alarm_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { … } /* For Smart Fan I / Thermal Cruise */ static ssize_t show_thermal_cruise(struct device *dev, struct device_attribute *attr, char *buf) { … } static ssize_t store_thermal_cruise(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { … } /* For Smart Fan I/Thermal Cruise and Smart Fan II */ static ssize_t show_tolerance(struct device *dev, struct device_attribute *attr, char *buf) { … } static ssize_t store_tolerance(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { … } /* For Smart Fan II */ static ssize_t show_sf2_point(struct device *dev, struct device_attribute *attr, char *buf) { … } static ssize_t store_sf2_point(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { … } static ssize_t show_sf2_level(struct device *dev, struct device_attribute *attr, char *buf) { … } static ssize_t store_sf2_level(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { … } static int w83792d_detect_subclients(struct i2c_client *new_client) { … } static SENSOR_DEVICE_ATTR(in0_input, S_IRUGO, show_in, NULL, 0); static SENSOR_DEVICE_ATTR(in1_input, S_IRUGO, show_in, NULL, 1); static SENSOR_DEVICE_ATTR(in2_input, S_IRUGO, show_in, NULL, 2); static SENSOR_DEVICE_ATTR(in3_input, S_IRUGO, show_in, NULL, 3); static SENSOR_DEVICE_ATTR(in4_input, S_IRUGO, show_in, NULL, 4); static SENSOR_DEVICE_ATTR(in5_input, S_IRUGO, show_in, NULL, 5); static SENSOR_DEVICE_ATTR(in6_input, S_IRUGO, show_in, NULL, 6); static SENSOR_DEVICE_ATTR(in7_input, S_IRUGO, show_in, NULL, 7); static SENSOR_DEVICE_ATTR(in8_input, S_IRUGO, show_in, NULL, 8); static SENSOR_DEVICE_ATTR(in0_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 0); static SENSOR_DEVICE_ATTR(in1_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 1); static SENSOR_DEVICE_ATTR(in2_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 2); static SENSOR_DEVICE_ATTR(in3_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 3); static SENSOR_DEVICE_ATTR(in4_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 4); static SENSOR_DEVICE_ATTR(in5_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 5); static SENSOR_DEVICE_ATTR(in6_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 6); static SENSOR_DEVICE_ATTR(in7_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 7); static SENSOR_DEVICE_ATTR(in8_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 8); static SENSOR_DEVICE_ATTR(in0_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 0); static SENSOR_DEVICE_ATTR(in1_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 1); static SENSOR_DEVICE_ATTR(in2_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 2); static SENSOR_DEVICE_ATTR(in3_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 3); static SENSOR_DEVICE_ATTR(in4_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 4); static SENSOR_DEVICE_ATTR(in5_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 5); static SENSOR_DEVICE_ATTR(in6_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 6); static SENSOR_DEVICE_ATTR(in7_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 7); static SENSOR_DEVICE_ATTR(in8_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 8); static SENSOR_DEVICE_ATTR_2(temp1_input, S_IRUGO, show_temp1, NULL, 0, 0); static SENSOR_DEVICE_ATTR_2(temp2_input, S_IRUGO, show_temp23, NULL, 0, 0); static SENSOR_DEVICE_ATTR_2(temp3_input, S_IRUGO, show_temp23, NULL, 1, 0); static SENSOR_DEVICE_ATTR_2(temp1_max, S_IRUGO | S_IWUSR, show_temp1, store_temp1, 0, 1); static SENSOR_DEVICE_ATTR_2(temp2_max, S_IRUGO | S_IWUSR, show_temp23, store_temp23, 0, 2); static SENSOR_DEVICE_ATTR_2(temp3_max, S_IRUGO | S_IWUSR, show_temp23, store_temp23, 1, 2); static SENSOR_DEVICE_ATTR_2(temp1_max_hyst, S_IRUGO | S_IWUSR, show_temp1, store_temp1, 0, 2); static SENSOR_DEVICE_ATTR_2(temp2_max_hyst, S_IRUGO | S_IWUSR, show_temp23, store_temp23, 0, 4); static SENSOR_DEVICE_ATTR_2(temp3_max_hyst, S_IRUGO | S_IWUSR, show_temp23, store_temp23, 1, 4); static DEVICE_ATTR_RO(alarms); static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 0); static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 1); static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 2); static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 3); static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 4); static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 5); static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 6); static SENSOR_DEVICE_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, 7); static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 8); static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 9); static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 10); static SENSOR_DEVICE_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 11); static SENSOR_DEVICE_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 12); static SENSOR_DEVICE_ATTR(fan7_alarm, S_IRUGO, show_alarm, NULL, 15); static SENSOR_DEVICE_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 19); static SENSOR_DEVICE_ATTR(in8_alarm, S_IRUGO, show_alarm, NULL, 20); static SENSOR_DEVICE_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL, 21); static SENSOR_DEVICE_ATTR(fan5_alarm, S_IRUGO, show_alarm, NULL, 22); static SENSOR_DEVICE_ATTR(fan6_alarm, S_IRUGO, show_alarm, NULL, 23); static DEVICE_ATTR_RW(intrusion0_alarm); static SENSOR_DEVICE_ATTR(pwm1, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 0); static SENSOR_DEVICE_ATTR(pwm2, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 1); static SENSOR_DEVICE_ATTR(pwm3, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 2); static SENSOR_DEVICE_ATTR(pwm4, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 3); static SENSOR_DEVICE_ATTR(pwm5, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 4); static SENSOR_DEVICE_ATTR(pwm6, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 5); static SENSOR_DEVICE_ATTR(pwm7, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 6); static SENSOR_DEVICE_ATTR(pwm1_enable, S_IWUSR | S_IRUGO, show_pwmenable, store_pwmenable, 1); static SENSOR_DEVICE_ATTR(pwm2_enable, S_IWUSR | S_IRUGO, show_pwmenable, store_pwmenable, 2); static SENSOR_DEVICE_ATTR(pwm3_enable, S_IWUSR | S_IRUGO, show_pwmenable, store_pwmenable, 3); static SENSOR_DEVICE_ATTR(pwm1_mode, S_IWUSR | S_IRUGO, show_pwm_mode, store_pwm_mode, 0); static SENSOR_DEVICE_ATTR(pwm2_mode, S_IWUSR | S_IRUGO, show_pwm_mode, store_pwm_mode, 1); static SENSOR_DEVICE_ATTR(pwm3_mode, S_IWUSR | S_IRUGO, show_pwm_mode, store_pwm_mode, 2); static SENSOR_DEVICE_ATTR(pwm4_mode, S_IWUSR | S_IRUGO, show_pwm_mode, store_pwm_mode, 3); static SENSOR_DEVICE_ATTR(pwm5_mode, S_IWUSR | S_IRUGO, show_pwm_mode, store_pwm_mode, 4); static SENSOR_DEVICE_ATTR(pwm6_mode, S_IWUSR | S_IRUGO, show_pwm_mode, store_pwm_mode, 5); static SENSOR_DEVICE_ATTR(pwm7_mode, S_IWUSR | S_IRUGO, show_pwm_mode, store_pwm_mode, 6); static SENSOR_DEVICE_ATTR(tolerance1, S_IWUSR | S_IRUGO, show_tolerance, store_tolerance, 1); static SENSOR_DEVICE_ATTR(tolerance2, S_IWUSR | S_IRUGO, show_tolerance, store_tolerance, 2); static SENSOR_DEVICE_ATTR(tolerance3, S_IWUSR | S_IRUGO, show_tolerance, store_tolerance, 3); static SENSOR_DEVICE_ATTR(thermal_cruise1, S_IWUSR | S_IRUGO, show_thermal_cruise, store_thermal_cruise, 1); static SENSOR_DEVICE_ATTR(thermal_cruise2, S_IWUSR | S_IRUGO, show_thermal_cruise, store_thermal_cruise, 2); static SENSOR_DEVICE_ATTR(thermal_cruise3, S_IWUSR | S_IRUGO, show_thermal_cruise, store_thermal_cruise, 3); static SENSOR_DEVICE_ATTR_2(sf2_point1_fan1, S_IRUGO | S_IWUSR, show_sf2_point, store_sf2_point, 1, 1); static SENSOR_DEVICE_ATTR_2(sf2_point2_fan1, S_IRUGO | S_IWUSR, show_sf2_point, store_sf2_point, 2, 1); static SENSOR_DEVICE_ATTR_2(sf2_point3_fan1, S_IRUGO | S_IWUSR, show_sf2_point, store_sf2_point, 3, 1); static SENSOR_DEVICE_ATTR_2(sf2_point4_fan1, S_IRUGO | S_IWUSR, show_sf2_point, store_sf2_point, 4, 1); static SENSOR_DEVICE_ATTR_2(sf2_point1_fan2, S_IRUGO | S_IWUSR, show_sf2_point, store_sf2_point, 1, 2); static SENSOR_DEVICE_ATTR_2(sf2_point2_fan2, S_IRUGO | S_IWUSR, show_sf2_point, store_sf2_point, 2, 2); static SENSOR_DEVICE_ATTR_2(sf2_point3_fan2, S_IRUGO | S_IWUSR, show_sf2_point, store_sf2_point, 3, 2); static SENSOR_DEVICE_ATTR_2(sf2_point4_fan2, S_IRUGO | S_IWUSR, show_sf2_point, store_sf2_point, 4, 2); static SENSOR_DEVICE_ATTR_2(sf2_point1_fan3, S_IRUGO | S_IWUSR, show_sf2_point, store_sf2_point, 1, 3); static SENSOR_DEVICE_ATTR_2(sf2_point2_fan3, S_IRUGO | S_IWUSR, show_sf2_point, store_sf2_point, 2, 3); static SENSOR_DEVICE_ATTR_2(sf2_point3_fan3, S_IRUGO | S_IWUSR, show_sf2_point, store_sf2_point, 3, 3); static SENSOR_DEVICE_ATTR_2(sf2_point4_fan3, S_IRUGO | S_IWUSR, show_sf2_point, store_sf2_point, 4, 3); static SENSOR_DEVICE_ATTR_2(sf2_level1_fan1, S_IRUGO | S_IWUSR, show_sf2_level, store_sf2_level, 1, 1); static SENSOR_DEVICE_ATTR_2(sf2_level2_fan1, S_IRUGO | S_IWUSR, show_sf2_level, store_sf2_level, 2, 1); static SENSOR_DEVICE_ATTR_2(sf2_level3_fan1, S_IRUGO | S_IWUSR, show_sf2_level, store_sf2_level, 3, 1); static SENSOR_DEVICE_ATTR_2(sf2_level1_fan2, S_IRUGO | S_IWUSR, show_sf2_level, store_sf2_level, 1, 2); static SENSOR_DEVICE_ATTR_2(sf2_level2_fan2, S_IRUGO | S_IWUSR, show_sf2_level, store_sf2_level, 2, 2); static SENSOR_DEVICE_ATTR_2(sf2_level3_fan2, S_IRUGO | S_IWUSR, show_sf2_level, store_sf2_level, 3, 2); static SENSOR_DEVICE_ATTR_2(sf2_level1_fan3, S_IRUGO | S_IWUSR, show_sf2_level, store_sf2_level, 1, 3); static SENSOR_DEVICE_ATTR_2(sf2_level2_fan3, S_IRUGO | S_IWUSR, show_sf2_level, store_sf2_level, 2, 3); static SENSOR_DEVICE_ATTR_2(sf2_level3_fan3, S_IRUGO | S_IWUSR, show_sf2_level, store_sf2_level, 3, 3); static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 1); static SENSOR_DEVICE_ATTR(fan2_input, S_IRUGO, show_fan, NULL, 2); static SENSOR_DEVICE_ATTR(fan3_input, S_IRUGO, show_fan, NULL, 3); static SENSOR_DEVICE_ATTR(fan4_input, S_IRUGO, show_fan, NULL, 4); static SENSOR_DEVICE_ATTR(fan5_input, S_IRUGO, show_fan, NULL, 5); static SENSOR_DEVICE_ATTR(fan6_input, S_IRUGO, show_fan, NULL, 6); static SENSOR_DEVICE_ATTR(fan7_input, S_IRUGO, show_fan, NULL, 7); static SENSOR_DEVICE_ATTR(fan1_min, S_IWUSR | S_IRUGO, show_fan_min, store_fan_min, 1); static SENSOR_DEVICE_ATTR(fan2_min, S_IWUSR | S_IRUGO, show_fan_min, store_fan_min, 2); static SENSOR_DEVICE_ATTR(fan3_min, S_IWUSR | S_IRUGO, show_fan_min, store_fan_min, 3); static SENSOR_DEVICE_ATTR(fan4_min, S_IWUSR | S_IRUGO, show_fan_min, store_fan_min, 4); static SENSOR_DEVICE_ATTR(fan5_min, S_IWUSR | S_IRUGO, show_fan_min, store_fan_min, 5); static SENSOR_DEVICE_ATTR(fan6_min, S_IWUSR | S_IRUGO, show_fan_min, store_fan_min, 6); static SENSOR_DEVICE_ATTR(fan7_min, S_IWUSR | S_IRUGO, show_fan_min, store_fan_min, 7); static SENSOR_DEVICE_ATTR(fan1_div, S_IWUSR | S_IRUGO, show_fan_div, store_fan_div, 1); static SENSOR_DEVICE_ATTR(fan2_div, S_IWUSR | S_IRUGO, show_fan_div, store_fan_div, 2); static SENSOR_DEVICE_ATTR(fan3_div, S_IWUSR | S_IRUGO, show_fan_div, store_fan_div, 3); static SENSOR_DEVICE_ATTR(fan4_div, S_IWUSR | S_IRUGO, show_fan_div, store_fan_div, 4); static SENSOR_DEVICE_ATTR(fan5_div, S_IWUSR | S_IRUGO, show_fan_div, store_fan_div, 5); static SENSOR_DEVICE_ATTR(fan6_div, S_IWUSR | S_IRUGO, show_fan_div, store_fan_div, 6); static SENSOR_DEVICE_ATTR(fan7_div, S_IWUSR | S_IRUGO, show_fan_div, store_fan_div, 7); static struct attribute *w83792d_attributes_fan[4][7] = …; static const struct attribute_group w83792d_group_fan[4] = …; static struct attribute *w83792d_attributes[] = …; static const struct attribute_group w83792d_group = …; /* Return 0 if detection is successful, -ENODEV otherwise */ static int w83792d_detect(struct i2c_client *client, struct i2c_board_info *info) { … } static int w83792d_probe(struct i2c_client *client) { … } static void w83792d_remove(struct i2c_client *client) { … } static void w83792d_init_client(struct i2c_client *client) { … } static struct w83792d_data *w83792d_update_device(struct device *dev) { … } #ifdef DEBUG static void w83792d_print_debug(struct w83792d_data *data, struct device *dev) { … } #endif module_i2c_driver(…) …; MODULE_AUTHOR(…) …; MODULE_DESCRIPTION(…) …; MODULE_LICENSE(…) …;
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