Merge branch 'work.compat' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

[sfrench/cifs-2.6.git] / Documentation / ABI / testing / sysfs-bus-rpmsg

diff --git a/Documentation/ABI/testing/sysfs-bus-rpmsg b/Documentation/ABI/testing/sysfs-bus-rpmsg
index 189e419a5a2d96543a2765eb1509c6d322941829..990fcc42093539b77ac3d4918d0c700a1be410c2 100644 (file)
--- a/Documentation/ABI/testing/sysfs-bus-rpmsg
+++ b/Documentation/ABI/testing/sysfs-bus-rpmsg
@@ -73,3 +73,23 @@ Description:
                This sysfs entry tells us whether the channel is a local
                server channel that is announced (values are either
                true or false).
+
+What:          /sys/bus/rpmsg/devices/.../driver_override
+Date:          April 2018
+KernelVersion: 4.18
+Contact:       Bjorn Andersson <bjorn.andersson@linaro.org>
+Description:
+               Every rpmsg device is a communication channel with a remote
+               processor. Channels are identified by a textual name (see
+               /sys/bus/rpmsg/devices/.../name above) and have a local
+               ("source") rpmsg address, and remote ("destination") rpmsg
+               address.
+
+               The listening entity (or client) which communicates with a
+               remote processor is referred as rpmsg driver. The rpmsg device
+               and rpmsg driver are matched based on rpmsg device name and
+               rpmsg driver ID table.
+
+               This sysfs entry allows the rpmsg driver for a rpmsg device
+               to be specified which will override standard OF, ID table
+               and name matching.