[PATCH 1/2] sysfs: add attribute specification for /sysfs/devices/.../coredump

From: Arend van Spriel
Date: Tue Dec 19 2017 - 05:04:01 EST

From: Arend van Spriel <aspriel@xxxxxxxxx>

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@xxxxxxxxx>
Documentation/ABI/testing/sysfs-devices-coredump | 10 ++++++++++
1 file changed, 10 insertions(+)
create mode 100644 Documentation/ABI/testing/sysfs-devices-coredump

diff --git a/Documentation/ABI/testing/sysfs-devices-coredump b/Documentation/ABI/testing/sysfs-devices-coredump
new file mode 100644
index 0000000..5989255
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-devices-coredump
@@ -0,0 +1,10 @@
+What: /sys/devices/.../coredump
+Date: December 2017
+Contact: Arend van Spriel <arend.vanspriel@xxxxxxxxxxxx>
+ 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.