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