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