What:		/sys/class/rc/
Date:		Apr 2010
KernelVersion:	2.6.35
Contact:	Mauro Carvalho Chehab <m.chehab@samsung.com>
Description:
		The rc/ class sub-directory belongs to the Remote Controller
		core and provides a sysfs interface for configuring infrared
		remote controller receivers.

What:		/sys/class/rc/rcN/
Date:		Apr 2010
KernelVersion:	2.6.35
Contact:	Mauro Carvalho Chehab <m.chehab@samsung.com>
Description:
		A /sys/class/rc/rcN directory is created for each remote
		control receiver device where N is the number of the receiver.

What:		/sys/class/rc/rcN/protocols
Date:		Jun 2010
KernelVersion:	2.6.36
Contact:	Mauro Carvalho Chehab <m.chehab@samsung.com>
Description:
		Reading this file returns a list of available protocols,
		something like:
		    "rc5 [rc6] nec jvc [sony]"
		Enabled protocols are shown in [] brackets.
		Writing "+proto" will add a protocol to the list of enabled
		protocols.
		Writing "-proto" will remove a protocol from the list of enabled
		protocols.
		Writing "proto" will enable only "proto".
		Writing "none" will disable all protocols.
		Write fails with EINVAL if an invalid protocol combination or
		unknown protocol name is used.