What:		/sys/bus/pil/devices/.../name
Date:		March 2012
Contact:	Stephen Boyd <sboyd@codeaurora.org>
Description:
		Shows the name of the peripheral used in pil_get().

What:		/sys/bus/pil/devices/.../state
Date:		March 2012
Contact:	Stephen Boyd <sboyd@codeaurora.org>
Description:
		Shows the state state of a peripheral. Current states
		supported are:

			OFFLINE - peripheral is offline
			ONLINE - peripheral is online

		This file supports poll() to detect when a peripheral changes
		state.