1What: /sys/kernel/debug/ec/*/{gpe,use_global_lock,io} 2Date: July 2010 3Contact: Thomas Renninger <trenn@suse.de> 4Description: 5 6General information like which GPE is assigned to the EC and whether 7the global lock should get used. 8Knowing the EC GPE one can watch the amount of HW events related to 9the EC here (XY -> GPE number from /sys/kernel/debug/ec/*/gpe): 10/sys/firmware/acpi/interrupts/gpeXY 11 12The io file is binary and a userspace tool located here: 13ftp://ftp.suse.com/pub/people/trenn/sources/ec/ 14should get used to read out the 256 Embedded Controller registers 15or writing to them. 16 17CAUTION: Do not write to the Embedded Controller if you don't know 18what you are doing! Rebooting afterwards also is a good idea. 19This can influence the way your machine is cooled and fans may 20not get switched on again after you did a wrong write. 21