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