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| author | Hans de Goede <hdegoede@redhat.com> | 2024-12-11 18:44:49 +0100 |
|---|---|---|
| committer | Sebastian Reichel <sebastian.reichel@collabora.com> | 2024-12-13 00:39:38 +0100 |
| commit | d24bf99214b199c25f9c2cb04b3a4993d1c7ab60 (patch) | |
| tree | 2832737a53eca0b0045e7a9f52db13add46c9100 /Documentation/ABI | |
| parent | 250bbd612bb1103745ea6c891a2a1d5f5e1576a3 (diff) | |
| download | linux-d24bf99214b199c25f9c2cb04b3a4993d1c7ab60.tar.gz linux-d24bf99214b199c25f9c2cb04b3a4993d1c7ab60.tar.bz2 linux-d24bf99214b199c25f9c2cb04b3a4993d1c7ab60.zip | |
power: supply: core: Add new "charge_types" property
Add a new "charge_types" property, this is identical to "charge_type" but
reading returns a list of supported charge-types with the currently active
type surrounded by square brackets, e.g.:
Fast [Standard] "Long_Life"
This has the advantage over the existing "charge_type" property that this
allows userspace to find out which charge-types are supported for writable
charge_type properties.
Drivers which already support "charge_type" can easily add support for
this by setting power_supply_desc.charge_types to a bitmask representing
valid charge_type values. The existing "charge_type" get_property() and
set_property() code paths can be re-used for "charge_types".
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Thomas Weißschuh <linux@weissschuh.net>
Link: https://lore.kernel.org/r/20241211174451.355421-3-hdegoede@redhat.com
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Diffstat (limited to 'Documentation/ABI')
| -rw-r--r-- | Documentation/ABI/testing/sysfs-class-power | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-class-power b/Documentation/ABI/testing/sysfs-class-power index 45180b62d426..74050dfb5fc0 100644 --- a/Documentation/ABI/testing/sysfs-class-power +++ b/Documentation/ABI/testing/sysfs-class-power @@ -407,10 +407,30 @@ Description: Access: Read, Write + Reading this returns the current active value, e.g. 'Standard'. + Check charge_types to get the values supported by the battery. + Valid values: "Unknown", "N/A", "Trickle", "Fast", "Standard", "Adaptive", "Custom", "Long Life", "Bypass" +What: /sys/class/power_supply/<supply_name>/charge_types +Date: December 2024 +Contact: linux-pm@vger.kernel.org +Description: + Identical to charge_type but reading returns a list of supported + charge-types with the currently active type surrounded by square + brackets, e.g.: "Fast [Standard] Long_Life". + + power_supply class devices may support both charge_type and + charge_types for backward compatibility. In this case both will + always have the same active value and the active value can be + changed by writing either property. + + Note charge-types which contain a space such as "Long Life" will + have the space replaced by a '_' resulting in e.g. "Long_Life". + When writing charge-types both variants are accepted. + What: /sys/class/power_supply/<supply_name>/charge_term_current Date: July 2014 Contact: linux-pm@vger.kernel.org |