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Release 4.14 drivers/hwmon/max6650.c

Directory: drivers/hwmon
/*
 * max6650.c - Part of lm_sensors, Linux kernel modules for hardware
 *             monitoring.
 *
 * (C) 2007 by Hans J. Koch <hjk@hansjkoch.de>
 *
 * based on code written by John Morris <john.morris@spirentcom.com>
 * Copyright (c) 2003 Spirent Communications
 * and Claus Gindhart <claus.gindhart@kontron.com>
 *
 * This module has only been tested with the MAX6650 chip. It should
 * also work with the MAX6651. It does not distinguish max6650 and max6651
 * chips.
 *
 * The datasheet was last seen at:
 *
 *        http://pdfserv.maxim-ic.com/en/ds/MAX6650-MAX6651.pdf
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

#include <linux/module.h>
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/jiffies.h>
#include <linux/i2c.h>
#include <linux/hwmon.h>
#include <linux/hwmon-sysfs.h>
#include <linux/err.h>
#include <linux/of_device.h>

/*
 * Insmod parameters
 */

/* fan_voltage: 5=5V fan, 12=12V fan, 0=don't change */

static int fan_voltage;
/* prescaler: Possible values are 1, 2, 4, 8, 16 or 0 for don't change */

static int prescaler;
/* clock: The clock frequency of the chip (max6651 can be clocked externally) */

static int clock = 254000;

module_param(fan_voltage, int, S_IRUGO);
module_param(prescaler, int, S_IRUGO);
module_param(clock, int, S_IRUGO);

/*
 * MAX 6650/6651 registers
 */


#define MAX6650_REG_SPEED	0x00

#define MAX6650_REG_CONFIG	0x02

#define MAX6650_REG_GPIO_DEF	0x04

#define MAX6650_REG_DAC		0x06

#define MAX6650_REG_ALARM_EN	0x08

#define MAX6650_REG_ALARM	0x0A

#define MAX6650_REG_TACH0	0x0C

#define MAX6650_REG_TACH1	0x0E

#define MAX6650_REG_TACH2	0x10

#define MAX6650_REG_TACH3	0x12

#define MAX6650_REG_GPIO_STAT	0x14

#define MAX6650_REG_COUNT	0x16

/*
 * Config register bits
 */


#define MAX6650_CFG_V12			0x08

#define MAX6650_CFG_PRESCALER_MASK	0x07

#define MAX6650_CFG_PRESCALER_2		0x01

#define MAX6650_CFG_PRESCALER_4		0x02

#define MAX6650_CFG_PRESCALER_8		0x03

#define MAX6650_CFG_PRESCALER_16	0x04

#define MAX6650_CFG_MODE_MASK		0x30

#define MAX6650_CFG_MODE_ON		0x00

#define MAX6650_CFG_MODE_OFF		0x10

#define MAX6650_CFG_MODE_CLOSED_LOOP	0x20

#define MAX6650_CFG_MODE_OPEN_LOOP	0x30

#define MAX6650_COUNT_MASK		0x03

/*
 * Alarm status register bits
 */


#define MAX6650_ALRM_MAX	0x01

#define MAX6650_ALRM_MIN	0x02

#define MAX6650_ALRM_TACH	0x04

#define MAX6650_ALRM_GPIO1	0x08

#define MAX6650_ALRM_GPIO2	0x10

/* Minimum and maximum values of the FAN-RPM */

#define FAN_RPM_MIN 240

#define FAN_RPM_MAX 30000


#define DIV_FROM_REG(reg) (1 << (reg & 7))

/*
 * Client data (each client gets its own)
 */


struct max6650_data {
	
struct i2c_client *client;
	
const struct attribute_group *groups[3];
	
struct mutex update_lock;
	
int nr_fans;
	
char valid; /* zero until following fields are valid */
	
unsigned long last_updated; /* in jiffies */

	/* register values */
	
u8 speed;
	
u8 config;
	
u8 tach[4];
	
u8 count;
	
u8 dac;
	
u8 alarm;
};


static const u8 tach_reg[] = {
	MAX6650_REG_TACH0,
	MAX6650_REG_TACH1,
	MAX6650_REG_TACH2,
	MAX6650_REG_TACH3,
};


static const struct of_device_id max6650_dt_match[] = {
	{
		.compatible = "maxim,max6650",
		.data = (void *)1
	},
	{
		.compatible = "maxim,max6651",
		.data = (void *)4
	},
	{ },
};
MODULE_DEVICE_TABLE(of, max6650_dt_match);


static struct max6650_data *max6650_update_device(struct device *dev) { struct max6650_data *data = dev_get_drvdata(dev); struct i2c_client *client = data->client; int i; mutex_lock(&data->update_lock); if (time_after(jiffies, data->last_updated + HZ) || !data->valid) { data->speed = i2c_smbus_read_byte_data(client, MAX6650_REG_SPEED); data->config = i2c_smbus_read_byte_data(client, MAX6650_REG_CONFIG); for (i = 0; i < data->nr_fans; i++) { data->tach[i] = i2c_smbus_read_byte_data(client, tach_reg[i]); } data->count = i2c_smbus_read_byte_data(client, MAX6650_REG_COUNT); data->dac = i2c_smbus_read_byte_data(client, MAX6650_REG_DAC); /* * Alarms are cleared on read in case the condition that * caused the alarm is removed. Keep the value latched here * for providing the register through different alarm files. */ data->alarm |= i2c_smbus_read_byte_data(client, MAX6650_REG_ALARM); data->last_updated = jiffies; data->valid = 1; } mutex_unlock(&data->update_lock); return data; }

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Guenter Roeck14884.09%266.67%
Hans-Jürgen Koch2815.91%133.33%
Total176100.00%3100.00%

/* * Change the operating mode of the chip (if needed). * mode is one of the MAX6650_CFG_MODE_* values. */
static int max6650_set_operating_mode(struct max6650_data *data, u8 mode) { int result; u8 config = data->config; if (mode == (config & MAX6650_CFG_MODE_MASK)) return 0; config = (config & ~MAX6650_CFG_MODE_MASK) | mode; result = i2c_smbus_write_byte_data(data->client, MAX6650_REG_CONFIG, config); if (result < 0) return result; data->config = config; return 0; }

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Mike Looijmans79100.00%1100.00%
Total79100.00%1100.00%


static ssize_t get_fan(struct device *dev, struct device_attribute *devattr, char *buf) { struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); struct max6650_data *data = max6650_update_device(dev); int rpm; /* * Calculation details: * * Each tachometer counts over an interval given by the "count" * register (0.25, 0.5, 1 or 2 seconds). This module assumes * that the fans produce two pulses per revolution (this seems * to be the most common). */ rpm = ((data->tach[attr->index] * 120) / DIV_FROM_REG(data->count)); return sprintf(buf, "%d\n", rpm); }

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Guenter Roeck78100.00%1100.00%
Total78100.00%1100.00%

/* * Set the fan speed to the specified RPM (or read back the RPM setting). * This works in closed loop mode only. Use pwm1 for open loop speed setting. * * The MAX6650/1 will automatically control fan speed when in closed loop * mode. * * Assumptions: * * 1) The MAX6650/1 internal 254kHz clock frequency is set correctly. Use * the clock module parameter if you need to fine tune this. * * 2) The prescaler (low three bits of the config register) has already * been set to an appropriate value. Use the prescaler module parameter * if your BIOS doesn't initialize the chip properly. * * The relevant equations are given on pages 21 and 22 of the datasheet. * * From the datasheet, the relevant equation when in regulation is: * * [fCLK / (128 x (KTACH + 1))] = 2 x FanSpeed / KSCALE * * where: * * fCLK is the oscillator frequency (either the 254kHz internal * oscillator or the externally applied clock) * * KTACH is the value in the speed register * * FanSpeed is the speed of the fan in rps * * KSCALE is the prescaler value (1, 2, 4, 8, or 16) * * When reading, we need to solve for FanSpeed. When writing, we need to * solve for KTACH. * * Note: this tachometer is completely separate from the tachometers * used to measure the fan speeds. Only one fan's speed (fan1) is * controlled. */
static ssize_t fan1_target_show(struct device *dev, struct device_attribute *devattr, char *buf) { struct max6650_data *data = max6650_update_device(dev); int kscale, ktach, rpm; /* * Use the datasheet equation: * * FanSpeed = KSCALE x fCLK / [256 x (KTACH + 1)] * * then multiply by 60 to give rpm. */ kscale = DIV_FROM_REG(data->config); ktach = data->speed; rpm = 60 * kscale * clock / (256 * (ktach + 1)); return sprintf(buf, "%d\n", rpm); }

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PersonTokensPropCommitsCommitProp
Hans-Jürgen Koch5567.90%125.00%
Guenter Roeck2530.86%250.00%
Julia Lawall11.23%125.00%
Total81100.00%4100.00%


static int max6650_set_target(struct max6650_data *data, unsigned long rpm) { int kscale, ktach; if (rpm == 0) return max6650_set_operating_mode(data, MAX6650_CFG_MODE_OFF); rpm = clamp_val(rpm, FAN_RPM_MIN, FAN_RPM_MAX); /* * Divide the required speed by 60 to get from rpm to rps, then * use the datasheet equation: * * KTACH = [(fCLK x KSCALE) / (256 x FanSpeed)] - 1 */ kscale = DIV_FROM_REG(data->config); ktach = ((clock * kscale) / (256 * rpm / 60)) - 1; if (ktach < 0) ktach = 0; if (ktach > 255) ktach = 255; data->speed = ktach; return i2c_smbus_write_byte_data(data->client, MAX6650_REG_SPEED, data->speed); }

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PersonTokensPropCommitsCommitProp
Hans-Jürgen Koch8372.17%120.00%
Mike Looijmans2118.26%120.00%
Guenter Roeck119.57%360.00%
Total115100.00%5100.00%


static ssize_t fan1_target_store(struct device *dev, struct device_attribute *devattr, const char *buf, size_t count) { struct max6650_data *data = dev_get_drvdata(dev); unsigned long rpm; int err; err = kstrtoul(buf, 10, &rpm); if (err) return err; mutex_lock(&data->update_lock); err = max6650_set_target(data, rpm); mutex_unlock(&data->update_lock); if (err < 0) return err; return count; }

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Mike Looijmans8385.57%133.33%
Hans-Jürgen Koch1313.40%133.33%
Julia Lawall11.03%133.33%
Total97100.00%3100.00%

/* * Get/set the fan speed in open loop mode using pwm1 sysfs file. * Speed is given as a relative value from 0 to 255, where 255 is maximum * speed. Note that this is done by writing directly to the chip's DAC, * it won't change the closed loop speed set by fan1_target. * Also note that due to rounding errors it is possible that you don't read * back exactly the value you have set. */
static ssize_t pwm1_show(struct device *dev, struct device_attribute *devattr, char *buf) { int pwm; struct max6650_data *data = max6650_update_device(dev); /* * Useful range for dac is 0-180 for 12V fans and 0-76 for 5V fans. * Lower DAC values mean higher speeds. */ if (data->config & MAX6650_CFG_V12) pwm = 255 - (255 * (int)data->dac)/180; else pwm = 255 - (255 * (int)data->dac)/76; if (pwm < 0) pwm = 0; return sprintf(buf, "%d\n", pwm); }

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PersonTokensPropCommitsCommitProp
Hans-Jürgen Koch9597.94%133.33%
Julia Lawall11.03%133.33%
Guenter Roeck11.03%133.33%
Total97100.00%3100.00%


static ssize_t pwm1_store(struct device *dev, struct device_attribute *devattr, const char *buf, size_t count) { struct max6650_data *data = dev_get_drvdata(dev); struct i2c_client *client = data->client; unsigned long pwm; int err; err = kstrtoul(buf, 10, &pwm); if (err) return err; pwm = clamp_val(pwm, 0, 255); mutex_lock(&data->update_lock); if (data->config & MAX6650_CFG_V12) data->dac = 180 - (180 * pwm)/255; else data->dac = 76 - (76 * pwm)/255; err = i2c_smbus_write_byte_data(client, MAX6650_REG_DAC, data->dac); mutex_unlock(&data->update_lock); return err < 0 ? err : count; }

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PersonTokensPropCommitsCommitProp
Hans-Jürgen Koch11876.13%116.67%
Guenter Roeck2818.06%350.00%
Mike Looijmans85.16%116.67%
Julia Lawall10.65%116.67%
Total155100.00%6100.00%

/* * Get/Set controller mode: * Possible values: * 0 = Fan always on * 1 = Open loop, Voltage is set according to speed, not regulated. * 2 = Closed loop, RPM for all fans regulated by fan1 tachometer * 3 = Fan off */
static ssize_t pwm1_enable_show(struct device *dev, struct device_attribute *devattr, char *buf) { struct max6650_data *data = max6650_update_device(dev); int mode = (data->config & MAX6650_CFG_MODE_MASK) >> 4; int sysfs_modes[4] = {0, 3, 2, 1}; return sprintf(buf, "%d\n", sysfs_modes[mode]); }

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PersonTokensPropCommitsCommitProp
Hans-Jürgen Koch7097.22%133.33%
Julia Lawall11.39%133.33%
Mike Looijmans11.39%133.33%
Total72100.00%3100.00%


static ssize_t pwm1_enable_store(struct device *dev, struct device_attribute *devattr, const char *buf, size_t count) { struct max6650_data *data = dev_get_drvdata(dev); unsigned long mode; int err; const u8 max6650_modes[] = { MAX6650_CFG_MODE_ON, MAX6650_CFG_MODE_OPEN_LOOP, MAX6650_CFG_MODE_CLOSED_LOOP, MAX6650_CFG_MODE_OFF, }; err = kstrtoul(buf, 10, &mode); if (err) return err; if (mode >= ARRAY_SIZE(max6650_modes)) return -EINVAL; mutex_lock(&data->update_lock); max6650_set_operating_mode(data, max6650_modes[mode]); mutex_unlock(&data->update_lock); return count; }

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Hans-Jürgen Koch7463.25%120.00%
Guenter Roeck2117.95%240.00%
Mike Looijmans2117.95%120.00%
Julia Lawall10.85%120.00%
Total117100.00%5100.00%

/* * Read/write functions for fan1_div sysfs file. The MAX6650 has no such * divider. We handle this by converting between divider and counttime: * * (counttime == k) <==> (divider == 2^k), k = 0, 1, 2, or 3 * * Lower values of k allow to connect a faster fan without the risk of * counter overflow. The price is lower resolution. You can also set counttime * using the module parameter. Note that the module parameter "prescaler" also * influences the behaviour. Unfortunately, there's no sysfs attribute * defined for that. See the data sheet for details. */
static ssize_t fan1_div_show(struct device *dev, struct device_attribute *devattr, char *buf) { struct max6650_data *data = max6650_update_device(dev); return sprintf(buf, "%d\n", DIV_FROM_REG(data->count)); }

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Hans-Jürgen Koch4497.78%150.00%
Julia Lawall12.22%150.00%
Total45100.00%2100.00%


static ssize_t fan1_div_store(struct device *dev, struct device_attribute *devattr, const char *buf, size_t count) { struct max6650_data *data = dev_get_drvdata(dev); struct i2c_client *client = data->client; unsigned long div; int err; err = kstrtoul(buf, 10, &div); if (err) return err; mutex_lock(&data->update_lock); switch (div) { case 1: data->count = 0; break; case 2: data->count = 1; break; case 4: data->count = 2; break; case 8: data->count = 3; break; default: mutex_unlock(&data->update_lock); return -EINVAL; } i2c_smbus_write_byte_data(client, MAX6650_REG_COUNT, data->count); mutex_unlock(&data->update_lock); return count; }

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Hans-Jürgen Koch12277.22%120.00%
Guenter Roeck2717.09%240.00%
Jiri Slaby85.06%120.00%
Julia Lawall10.63%120.00%
Total158100.00%5100.00%

/* * Get alarm stati: * Possible values: * 0 = no alarm * 1 = alarm */
static ssize_t get_alarm(struct device *dev, struct device_attribute *devattr, char *buf) { struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); struct max6650_data *data = max6650_update_device(dev); struct i2c_client *client = data->client; int alarm = 0; if (data->alarm & attr->index) { mutex_lock(&data->update_lock); alarm = 1; data->alarm &= ~attr->index; data->alarm |= i2c_smbus_read_byte_data(client, MAX6650_REG_ALARM); mutex_unlock(&data->update_lock); } return sprintf(buf, "%d\n", alarm); }

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Christian Engelmayer11397.41%150.00%
Guenter Roeck32.59%150.00%
Total116100.00%2100.00%

static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, get_fan, NULL, 0); static SENSOR_DEVICE_ATTR(fan2_input, S_IRUGO, get_fan, NULL, 1); static SENSOR_DEVICE_ATTR(fan3_input, S_IRUGO, get_fan, NULL, 2); static SENSOR_DEVICE_ATTR(fan4_input, S_IRUGO, get_fan, NULL, 3); static DEVICE_ATTR_RW(fan1_target); static DEVICE_ATTR_RW(fan1_div); static DEVICE_ATTR_RW(pwm1_enable); static DEVICE_ATTR_RW(pwm1); static SENSOR_DEVICE_ATTR(fan1_max_alarm, S_IRUGO, get_alarm, NULL, MAX6650_ALRM_MAX); static SENSOR_DEVICE_ATTR(fan1_min_alarm, S_IRUGO, get_alarm, NULL, MAX6650_ALRM_MIN); static SENSOR_DEVICE_ATTR(fan1_fault, S_IRUGO, get_alarm, NULL, MAX6650_ALRM_TACH); static SENSOR_DEVICE_ATTR(gpio1_alarm, S_IRUGO, get_alarm, NULL, MAX6650_ALRM_GPIO1); static SENSOR_DEVICE_ATTR(gpio2_alarm, S_IRUGO, get_alarm, NULL, MAX6650_ALRM_GPIO2);
static umode_t max6650_attrs_visible(struct kobject *kobj, struct attribute *a, int n) { struct device *dev = container_of(kobj, struct device, kobj); struct max6650_data *data = dev_get_drvdata(dev); struct i2c_client *client = data->client; u8 alarm_en = i2c_smbus_read_byte_data(client, MAX6650_REG_ALARM_EN); struct device_attribute *devattr; /* * Hide the alarms that have not been enabled by the firmware */ devattr = container_of(a, struct device_attribute, attr); if (devattr == &sensor_dev_attr_fan1_max_alarm.dev_attr || devattr == &sensor_dev_attr_fan1_min_alarm.dev_attr || devattr == &sensor_dev_attr_fan1_fault.dev_attr || devattr == &sensor_dev_attr_gpio1_alarm.dev_attr || devattr == &sensor_dev_attr_gpio2_alarm.dev_attr) { if (!(alarm_en & to_sensor_dev_attr(devattr)->index)) return 0; } return a->mode; }

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Christian Engelmayer12990.85%133.33%
Guenter Roeck128.45%133.33%
Al Viro10.70%133.33%
Total142100.00%3100.00%

static struct attribute *max6650_attrs[] = { &sensor_dev_attr_fan1_input.dev_attr.attr, &dev_attr_fan1_target.attr, &dev_attr_fan1_div.attr, &dev_attr_pwm1_enable.attr, &dev_attr_pwm1.attr, &sensor_dev_attr_fan1_max_alarm.dev_attr.attr, &sensor_dev_attr_fan1_min_alarm.dev_attr.attr, &sensor_dev_attr_fan1_fault.dev_attr.attr, &sensor_dev_attr_gpio1_alarm.dev_attr.attr, &sensor_dev_attr_gpio2_alarm.dev_attr.attr, NULL }; static const struct attribute_group max6650_group = { .attrs = max6650_attrs, .is_visible = max6650_attrs_visible, }; static struct attribute *max6651_attrs[] = { &sensor_dev_attr_fan2_input.dev_attr.attr, &sensor_dev_attr_fan3_input.dev_attr.attr, &sensor_dev_attr_fan4_input.dev_attr.attr, NULL }; static const struct attribute_group max6651_group = { .attrs = max6651_attrs, }; /* * Real code */
static int max6650_init_client(struct max6650_data *data, struct i2c_client *client) { struct device *dev = &client->dev; int config; int err = -EIO; u32 voltage; u32 prescale; u32 target_rpm; if (of_property_read_u32(dev->of_node, "maxim,fan-microvolt", &voltage)) voltage = fan_voltage; else voltage /= 1000000; /* Microvolts to volts */ if (of_property_read_u32(dev->of_node, "maxim,fan-prescale", &prescale)) prescale = prescaler; config = i2c_smbus_read_byte_data(client, MAX6650_REG_CONFIG); if (config < 0) { dev_err(dev, "Error reading config, aborting.\n"); return err; } switch (voltage) { case 0: break; case 5: config &= ~MAX6650_CFG_V12; break; case 12: config |= MAX6650_CFG_V12; break; default: dev_err(dev, "illegal value for fan_voltage (%d)\n", voltage); } switch (prescale) { case 0: break; case 1: config &= ~MAX6650_CFG_PRESCALER_MASK; break; case 2: config = (config & ~MAX6650_CFG_PRESCALER_MASK) | MAX6650_CFG_PRESCALER_2; break; case 4: config = (config & ~MAX6650_CFG_PRESCALER_MASK) | MAX6650_CFG_PRESCALER_4; break; case 8: config = (config & ~MAX6650_CFG_PRESCALER_MASK) | MAX6650_CFG_PRESCALER_8; break; case 16: config = (config & ~MAX6650_CFG_PRESCALER_MASK) | MAX6650_CFG_PRESCALER_16; break; default: dev_err(dev, "illegal value for prescaler (%d)\n", prescale); } dev_info(dev, "Fan voltage: %dV, prescaler: %d.\n", (config & MAX6650_CFG_V12) ? 12 : 5, 1 << (config & MAX6650_CFG_PRESCALER_MASK)); if (i2c_smbus_write_byte_data(client, MAX6650_REG_CONFIG, config)) { dev_err(dev, "Config write error, aborting.\n"); return err; } data->config = config; data->count = i2c_smbus_read_byte_data(client, MAX6650_REG_COUNT); if (!of_property_read_u32(client->dev.of_node, "maxim,fan-target-rpm", &target_rpm)) { max6650_set_target(data, target_rpm); max6650_set_operating_mode(data, MAX6650_CFG_MODE_CLOSED_LOOP); } return 0; }

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Guenter Roeck19757.94%550.00%
Mike Looijmans9929.12%220.00%
Jean Delvare247.06%220.00%
Hans-Jürgen Koch205.88%110.00%
Total340100.00%10100.00%


static int max6650_probe(struct i2c_client *client, const struct i2c_device_id *id) { struct device *dev = &client->dev; const struct of_device_id *of_id = of_match_device(of_match_ptr(max6650_dt_match), dev); struct max6650_data *data; struct device *hwmon_dev; int err; data = devm_kzalloc(dev, sizeof(struct max6650_data), GFP_KERNEL); if (!data) return -ENOMEM; data->client = client; mutex_init(&data->update_lock); data->nr_fans = of_id ? (int)(uintptr_t)of_id->data : id->driver_data; /* * Initialize the max6650 chip */ err = max6650_init_client(data, client); if (err) return err; data->groups[0] = &max6650_group; /* 3 additional fan inputs for the MAX6651 */ if (data->nr_fans == 4) data->groups[1] = &max6651_group; hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name, data, data->groups); return PTR_ERR_OR_ZERO(hwmon_dev); }

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Guenter Roeck13674.32%342.86%
Mike Looijmans2815.30%114.29%
Hans-Jürgen Koch126.56%114.29%
Jean Delvare63.28%114.29%
Tony Jones10.55%114.29%
Total183100.00%7100.00%

static const struct i2c_device_id max6650_id[] = { { "max6650", 1 }, { "max6651", 4 }, { } }; MODULE_DEVICE_TABLE(i2c, max6650_id); static struct i2c_driver max6650_driver = { .driver = { .name = "max6650", .of_match_table = of_match_ptr(max6650_dt_match), }, .probe = max6650_probe, .id_table = max6650_id, }; module_i2c_driver(max6650_driver); MODULE_AUTHOR("Hans J. Koch"); MODULE_DESCRIPTION("MAX6650 sensor driver"); MODULE_LICENSE("GPL");

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PersonTokensPropCommitsCommitProp
Hans-Jürgen Koch112340.67%210.53%
Guenter Roeck75727.42%736.84%
Mike Looijmans40414.63%210.53%
Christian Engelmayer37713.65%15.26%
Jean Delvare772.79%210.53%
Julia Lawall120.43%15.26%
Jiri Slaby80.29%15.26%
Al Viro10.04%15.26%
Tony Jones10.04%15.26%
Axel Lin10.04%15.26%
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Directory: drivers/hwmon
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