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sysfs: add attribute specification for /sysfs/devices/.../coredump

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This patch adds the specification for /sysfs/devices/.../coredump
which allows user-space to trigger a device coredump obtaining
binary data from the device for (fault) analysis. It relies on
CONFIG_DEV_COREDUMP being enabled.

Signed-off-by: Arend van Spriel <aspriel@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Arend van Spriel 2018-01-11 09:36:37 +01:00 committed by Greg Kroah-Hartman
parent a5e1923356
commit 36d1d09af1
1 changed files with 10 additions and 0 deletions
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What: /sys/devices/.../coredump
Date: December 2017
Contact: Arend van Spriel <aspriel@gmail.com>
Description:
The /sys/devices/.../coredump attribute is only present when the
device is bound to a driver, which provides the .coredump()
callback. The attribute is write only. Anything written to this
file will trigger the .coredump() callback.
Available when CONFIG_DEV_COREDUMP is enabled.