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authorAlan Jenkins <alan-jenkins@tuffmail.co.uk>2009-06-16 14:54:04 +0100
committerJohn W. Linville <linville@tuxdriver.com>2009-06-19 11:50:18 -0400
commit464902e812025792c9e33e19e1555c343672d5cf (patch)
treecc243de464a7935291c52ac93d6bd0a24c6c08c5 /Documentation/rfkill.txt
parent96e9cfeb9692b0bc6e03f9b6f9cb3c67a40b76d1 (diff)
downloadlinux-linaro-stable-464902e812025792c9e33e19e1555c343672d5cf.tar.gz
rfkill: export persistent attribute in sysfs
This information allows userspace to implement a hybrid policy where it can store the rfkill soft-blocked state in platform non-volatile storage if available, and if not then file-based storage can be used. Some users prefer platform non-volatile storage because of the behaviour when dual-booting multiple versions of Linux, or if the rfkill setting is changed in the BIOS setting screens, or if the BIOS responds to wireless-toggle hotkeys itself before the relevant platform driver has been loaded. Signed-off-by: Alan Jenkins <alan-jenkins@tuffmail.co.uk> Acked-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'Documentation/rfkill.txt')
-rw-r--r--Documentation/rfkill.txt2
1 files changed, 2 insertions, 0 deletions
diff --git a/Documentation/rfkill.txt b/Documentation/rfkill.txt
index c8acd8659e91..b4860509c319 100644
--- a/Documentation/rfkill.txt
+++ b/Documentation/rfkill.txt
@@ -111,6 +111,8 @@ following attributes:
name: Name assigned by driver to this key (interface or driver name).
type: Driver type string ("wlan", "bluetooth", etc).
+ persistent: Whether the soft blocked state is initialised from
+ non-volatile storage at startup.
state: Current state of the transmitter
0: RFKILL_STATE_SOFT_BLOCKED
transmitter is turned off by software