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rfkill: Add documentation about LED triggers

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Signed-off-by: João Paulo Rechi Vita <jprvita@endlessm.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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João Paulo Rechi Vita 2016-02-22 11:36:37 -05:00 committed by Johannes Berg
parent 9487bd6b96
commit 50ee738d72
1 changed files with 2 additions and 0 deletions
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Documentation/rfkill.txt
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@ -83,6 +83,8 @@ rfkill drivers that control devices that can be hard-blocked unless they also
assign the poll_hw_block() callback (then the rfkill core will poll the
device). Don't do this unless you cannot get the event in any other way.
RFKill provides per-switch LED triggers, which can be used to drive LEDs
according to the switch state (LED_FULL when blocked, LED_OFF otherwise).
5. Userspace support