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| author | Nicolin Chen <nicoleotsuka@gmail.com> | 2019-04-16 12:41:31 -0700 |
|---|---|---|
| committer | Guenter Roeck <linux@roeck-us.net> | 2019-04-16 13:10:20 -0700 |
| commit | 5c090abf945bf5fd496c861f371410888be8f4de (patch) | |
| tree | 1692a7111591bfffead6cb766dbd7c989f5e14a4 /Documentation/hwmon | |
| parent | 038a9c3d1e42420943c60f879fdb00b62f207f9c (diff) | |
| download | lwn-5c090abf945bf5fd496c861f371410888be8f4de.tar.gz lwn-5c090abf945bf5fd496c861f371410888be8f4de.zip | |
hwmon: (ina3221) Add averaging mode support
The CONFIG register has a 3-bit averaging mode field for users
to setup the number of samples that are collected and averaged
together. This is very useful to filter noise from sensor data.
This patch adds a 'samples' sysfs node using hwmon_chip_samples
of hwmon core, and updates wait time calculation by taking this
samples value into account.
Signed-off-by: Nicolin Chen <nicoleotsuka@gmail.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Diffstat (limited to 'Documentation/hwmon')
| -rw-r--r-- | Documentation/hwmon/ina3221 | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/Documentation/hwmon/ina3221 b/Documentation/hwmon/ina3221 index 4b82cbfb551c..ed3f22769d4b 100644 --- a/Documentation/hwmon/ina3221 +++ b/Documentation/hwmon/ina3221 @@ -35,3 +35,6 @@ curr[123]_max Warning alert current(mA) setting, activates the average is above this value. curr[123]_max_alarm Warning alert current limit exceeded in[456]_input Shunt voltage(uV) for channels 1, 2, and 3 respectively +samples Number of samples using in the averaging mode. + Supports the list of number of samples: + 1, 4, 16, 64, 128, 256, 512, 1024 |