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Based on kernel version 3.13. Page generated on 2014-01-20 21:59 EST.

1	What:		/sys/kernel/debug/ec/*/{gpe,use_global_lock,io}
2	Date:		July 2010
3	Contact:	Thomas Renninger <trenn@suse.de>
4	Description:
5	
6	General information like which GPE is assigned to the EC and whether
7	the global lock should get used.
8	Knowing the EC GPE one can watch the amount of HW events related to
9	the EC here (XY -> GPE number from /sys/kernel/debug/ec/*/gpe):
10	/sys/firmware/acpi/interrupts/gpeXY
11	
12	The io file is binary and a userspace tool located here:
13	ftp://ftp.suse.com/pub/people/trenn/sources/ec/
14	should get used to read out the 256 Embedded Controller registers
15	or writing to them.
16	
17	CAUTION: Do not write to the Embedded Controller if you don't know
18	what you are doing! Rebooting afterwards also is a good idea.
19	This can influence the way your machine is cooled and fans may
20	not get switched on again after you did a wrong write.
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