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| author | Sebastian Reichel <sebastian.reichel@collabora.com> | 2020-05-13 20:55:58 +0200 |
|---|---|---|
| committer | Sebastian Reichel <sebastian.reichel@collabora.com> | 2020-05-28 19:25:31 +0200 |
| commit | bac705abcf345c28e419157cfcd1c44032cc9db2 (patch) | |
| tree | 596f722e8b96228cfefbf2345bc04f4a7b7b4879 /Documentation | |
| parent | 655078f5f5286fe0ab38e90c4695001a0e15e9dd (diff) | |
power: supply: core: add capacity error margin property
Add a property for reporting the error margin expected
by fuel gauge chips.
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/ABI/testing/sysfs-class-power | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-class-power b/Documentation/ABI/testing/sysfs-class-power index bf3b48f022dc..2f896555ae23 100644 --- a/Documentation/ABI/testing/sysfs-class-power +++ b/Documentation/ABI/testing/sysfs-class-power @@ -74,6 +74,21 @@ Description: Access: Read, Write Valid values: 0 - 100 (percent) +What: /sys/class/power_supply/<supply_name>/capacity_error_margin +Date: April 2019 +Contact: linux-pm@vger.kernel.org +Description: + Battery capacity measurement becomes unreliable without + recalibration. This values provides the maximum error + margin expected to exist by the fuel gauge in percent. + Values close to 0% will be returned after (re-)calibration + has happened. Over time the error margin will increase. + 100% means, that the capacity related values are basically + completely useless. + + Access: Read + Valid values: 0 - 100 (percent) + What: /sys/class/power_supply/<supply_name>/capacity_level Date: June 2009 Contact: linux-pm@vger.kernel.org |