[PATCH v2 4/4] Documentation: ABI: /sys/firmware/devicetree/overlays

From: Pantelis Antoniou
Date: Tue Apr 07 2015 - 15:24:35 EST

Documentation ABI entry for overlays sysfs entries.

Signed-off-by: Pantelis Antoniou <pantelis.antoniou@xxxxxxxxxxxx>
.../ABI/testing/sysfs-firmware-devicetree-overlays | 23 ++++++++++++++++++++++
1 file changed, 23 insertions(+)
create mode 100644 Documentation/ABI/testing/sysfs-firmware-devicetree-overlays

diff --git a/Documentation/ABI/testing/sysfs-firmware-devicetree-overlays b/Documentation/ABI/testing/sysfs-firmware-devicetree-overlays
new file mode 100644
index 0000000..6b81f1c
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-firmware-devicetree-overlays
@@ -0,0 +1,23 @@
+What: /sys/firmware/devicetree/overlays/
+Date: March 2015
+Contact: Pantelis Antoniou <pantelis.antoniou@xxxxxxxxxxxx>
+ This directory contains the applied device tree overlays of
+ the running system, as directories of the overlay id.
+ enable: The master enable switch, by default is 1, and when
+ set to 0 it cannot be re-enabled for security reasons.
+What: /sys/firmware/devicetree/overlays/<id>
+Date: March 2015
+Contact: Pantelis Antoniou <pantelis.antoniou@xxxxxxxxxxxx>
+ Each directory represents an applied overlay, containing
+ the following attribute files.
+ targets: A file containing the list of targets of each overlay
+ with each line containing a target.
+ can_remove: The attribute set to 1 means that the overlay can
+ be removed, while 0 means that the overlay is being
+ overlapped therefore removal is prohibited.

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