Document the rfkill sysfs ABI

This moves sysfs ABI info from Documentation/rfkill.txt to the
ABI subfolder and reformats it.

This also schedules the deprecated sysfs parts to be removed in
2012 (claim file) and 2014 (state file).

Signed-off-by: Florian Mickler <florian@mickler.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 29 insertions, 0 deletions

diff --git a/Documentation/ABI/obsolete/sysfs-class-rfkill b/Documentation/ABI/obsolete/sysfs-class-rfkill
new file mode 100644
index 000000000000..4201d5b05515
--- /dev/null
+++ b/Documentation/ABI/obsolete/sysfs-class-rfkill
@@ -0,0 +1,29 @@
+rfkill - radio frequency (RF) connector kill switch support
+
+For details to this subsystem look at Documentation/rfkill.txt.
+
+What:           /sys/class/rfkill/rfkill[0-9]+/state
+Date:           09-Jul-2007
+KernelVersion   v2.6.22
+Contact:        linux-wireless@vger.kernel.org
+Description:    Current state of the transmitter.
+                This file is deprecated and sheduled to be removed in 2014,
+                because its not possible to express the 'soft and hard block'
+                state of the rfkill driver.
+Values:         A numeric value.
+                0: RFKILL_STATE_SOFT_BLOCKED
+                        transmitter is turned off by software
+                1: RFKILL_STATE_UNBLOCKED
+                        transmitter is (potentially) active
+                2: RFKILL_STATE_HARD_BLOCKED
+                        transmitter is forced off by something outside of
+                        the driver's control.
+
+What:           /sys/class/rfkill/rfkill[0-9]+/claim
+Date:           09-Jul-2007
+KernelVersion   v2.6.22
+Contact:        linux-wireless@vger.kernel.org
+Description:    This file is deprecated because there no longer is a way to
+                claim just control over a single rfkill instance.
+                This file is scheduled to be removed in 2012.
+Values:         0: Kernel handles events