rfkill - radio frequency (RF) connector kill switch support

For details to this subsystem look at Documentation/rfkill.txt.

For the deprecated /sys/class/rfkill/*/state and
/sys/class/rfkill/*/claim knobs of this interface look in
Documentation/ABI/obsolete/sysfs-class-rfkill.

What: 		/sys/class/rfkill
Date:		09-Jul-2007
KernelVersion:	v2.6.22
Contact:	linux-wireless@vger.kernel.org,
Description: 	The rfkill class subsystem folder.
		Each registered rfkill driver is represented by an rfkillX
		subfolder (X being an integer > 0).


What:		/sys/class/rfkill/rfkill[0-9]+/name
Date:		09-Jul-2007
KernelVersion	v2.6.22
Contact:	linux-wireless@vger.kernel.org
Description: 	Name assigned by driver to this key (interface or driver name).
Values: 	arbitrary string.


What: 		/sys/class/rfkill/rfkill[0-9]+/type
Date:		09-Jul-2007
KernelVersion	v2.6.22
Contact:	linux-wireless@vger.kernel.org
Description: 	Driver type string ("wlan", "bluetooth", etc).
Values: 	See include/linux/rfkill.h.


What:		/sys/class/rfkill/rfkill[0-9]+/persistent
Date:		09-Jul-2007
KernelVersion	v2.6.22
Contact:	linux-wireless@vger.kernel.org
Description: 	Whether the soft blocked state is initialised from non-volatile
		storage at startup.
Values: 	A numeric value.
		0: false
		1: true


What:		/sys/class/rfkill/rfkill[0-9]+/hard
Date:		12-March-2010
KernelVersion	v2.6.34
Contact:	linux-wireless@vger.kernel.org
Description: 	Current hardblock state. This file is read only.
Values: 	A numeric value.
		0: inactive
			The transmitter is (potentially) active.
		1: active
			The transmitter is forced off by something outside of
			the driver's control.


What:		/sys/class/rfkill/rfkill[0-9]+/soft
Date:		12-March-2010
KernelVersion	v2.6.34
Contact:	linux-wireless@vger.kernel.org
Description:	Current softblock state. This file is read and write.
Values: 	A numeric value.
		0: inactive
			The transmitter is (potentially) active.
		1: active
			The transmitter is turned off by software.