Commit f71fea23 authored by Johannes Berg's avatar Johannes Berg Committed by John W. Linville

rfkill: document /dev/rfkill

Add some blurb about /dev/rfkill to the documentation and
fix the "transmiter" spelling error.
Signed-off-by: default avatarJohannes Berg <johannes@sipsolutions.net>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent 2ec2c68c
......@@ -113,7 +113,7 @@ The following sysfs entries exist for every rfkill device:
0: RFKILL_STATE_SOFT_BLOCKED
transmitter is turned off by software
1: RFKILL_STATE_UNBLOCKED
transmiter is (potentially) active
transmitter is (potentially) active
2: RFKILL_STATE_HARD_BLOCKED
transmitter is forced off by something outside of
the driver's control.
......@@ -128,3 +128,9 @@ RFKILL_TYPE
The contents of these variables corresponds to the "name", "state" and
"type" sysfs files explained above.
An alternative userspace interface exists as a misc device /dev/rfkill,
which allows userspace to obtain and set the state of rfkill devices and
sets of devices. It also notifies userspace about device addition and
removal. The API is a simple read/write API that is defined in
linux/rfkill.h.
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