summaryrefslogtreecommitdiff
path: root/Documentation/ABI
diff options
context:
space:
mode:
authorNeilBrown <neil@brown.name>2015-07-30 10:11:24 +1000
committerSebastian Reichel <sre@kernel.org>2015-08-05 05:19:44 +0200
commitaca3c3546396b305fff79f09883cff48a908aac0 (patch)
tree802519e100fd760e7e6462fc39611664f9cfc2b6 /Documentation/ABI
parente4ae537e0482e99eeaa5373d39932fe65a477c21 (diff)
twl4030_charger: allow max_current to be managed via sysfs.
'max_current' sysfs attributes are created which allow the max to be set. Whenever a current source changes, the default is restored. This will be followed by a uevent, so user-space can decide to update again. Acked-by: Pavel Machek <pavel@ucw.cz> Signed-off-by: NeilBrown <neil@brown.name> Signed-off-by: Sebastian Reichel <sre@kernel.org>
Diffstat (limited to 'Documentation/ABI')
-rw-r--r--Documentation/ABI/testing/sysfs-class-power-twl403015
1 files changed, 15 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-class-power-twl4030 b/Documentation/ABI/testing/sysfs-class-power-twl4030
new file mode 100644
index 000000000000..0331bba4605d
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-class-power-twl4030
@@ -0,0 +1,15 @@
+What: /sys/class/power_supply/twl4030_ac/max_current
+ /sys/class/power_supply/twl4030_usb/max_current
+Description:
+ Read/Write limit on current which may
+ be drawn from the ac (Accessory Charger) or
+ USB port.
+
+ Value is in micro-Amps.
+
+ Value is set automatically to an appropriate
+ value when a cable is plugged or unplugged.
+
+ Value can the set by writing to the attribute.
+ The change will only persist until the next
+ plug event. These event are reported via udev.