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| author | Lothar Felten <lothar.felten@gmail.com> | 2018-08-14 09:09:37 +0200 |
|---|---|---|
| committer | Guenter Roeck <linux@roeck-us.net> | 2018-08-26 17:45:25 -0700 |
| commit | 3ad867001c91657c46dcf6656d52eb6080286fd5 (patch) | |
| tree | 0a056e052a159ea521733b542b9551b412db44ec /drivers/hwmon | |
| parent | 5b394b2ddf0347bef56e50c69a58773c94343ff3 (diff) | |
| download | linux-rpi3-3ad867001c91657c46dcf6656d52eb6080286fd5.tar.gz linux-rpi3-3ad867001c91657c46dcf6656d52eb6080286fd5.tar.bz2 linux-rpi3-3ad867001c91657c46dcf6656d52eb6080286fd5.zip | |
hwmon: (ina2xx) fix sysfs shunt resistor read access
fix the sysfs shunt resistor read access: return the shunt resistor
value, not the calibration register contents.
update email address
Signed-off-by: Lothar Felten <lothar.felten@gmail.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Diffstat (limited to 'drivers/hwmon')
| -rw-r--r-- | drivers/hwmon/ina2xx.c | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/drivers/hwmon/ina2xx.c b/drivers/hwmon/ina2xx.c index e9e6aeabbf84..71d3445ba869 100644 --- a/drivers/hwmon/ina2xx.c +++ b/drivers/hwmon/ina2xx.c @@ -17,7 +17,7 @@ * Bi-directional Current/Power Monitor with I2C Interface * Datasheet: http://www.ti.com/product/ina230 * - * Copyright (C) 2012 Lothar Felten <l-felten@ti.com> + * Copyright (C) 2012 Lothar Felten <lothar.felten@gmail.com> * Thanks to Jan Volkering * * This program is free software; you can redistribute it and/or modify @@ -329,6 +329,15 @@ static int ina2xx_set_shunt(struct ina2xx_data *data, long val) return 0; } +static ssize_t ina2xx_show_shunt(struct device *dev, + struct device_attribute *da, + char *buf) +{ + struct ina2xx_data *data = dev_get_drvdata(dev); + + return snprintf(buf, PAGE_SIZE, "%li\n", data->rshunt); +} + static ssize_t ina2xx_store_shunt(struct device *dev, struct device_attribute *da, const char *buf, size_t count) @@ -403,7 +412,7 @@ static SENSOR_DEVICE_ATTR(power1_input, S_IRUGO, ina2xx_show_value, NULL, /* shunt resistance */ static SENSOR_DEVICE_ATTR(shunt_resistor, S_IRUGO | S_IWUSR, - ina2xx_show_value, ina2xx_store_shunt, + ina2xx_show_shunt, ina2xx_store_shunt, INA2XX_CALIBRATION); /* update interval (ina226 only) */ |