What:		/sys/devices/platform/ideapad/camera_power
Date:		Dec 2010
KernelVersion:	2.6.37
Contact:	"Ike Panhc <ike.pan@canonical.com>"
Description:
		Control the power of camera module. 1 means on, 0 means off.

What:		/sys/devices/platform/ideapad/cfg
Date:		Jun 2011
KernelVersion:	3.1
Contact:	"Ike Panhc <ike.pan@canonical.com>"
Description:
		Ideapad capability bits.
		Bit 8-10: 1 - Intel graphic only
		          2 - ATI graphic only
		          3 - Nvidia graphic only
		          4 - Intel and ATI graphic
		          5 - Intel and Nvidia graphic
		Bit 16: Bluetooth exist (1 for exist)
		Bit 17: 3G exist (1 for exist)
		Bit 18: Wifi exist (1 for exist)
		Bit 19: Camera exist (1 for exist)