linux-imx/Documentation/ABI/testing/debugfs-ec
Mauro Carvalho Chehab 3443333284 docs: ABI: testing: make the files compatible with ReST output
Some files over there won't parse well by Sphinx.

Fix them.

Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> # for IIO
Acked-by: Fabrice Gasnier <fabrice.gasnier@st.com>
Acked-by: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Link: https://lore.kernel.org/r/58cf3c2d611e0197fb215652719ebd82ca2658db.1604042072.git.mchehab+huawei@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-10-30 13:07:01 +01:00

848 B

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.