# \[PATCH 4/5\] Documentation: ABI: /sys/firmware/devicetree/overlays

- From: Pantelis Antoniou \<hidden\>
- Date: 2015-03-17 20:31:54 
- List: linux-api
- Page: https://ratatoskr.run/linux-api/2015/03/4453375
- Thread: https://ratatoskr.run/linux-devicetree/2015/03/4453371/t.md

```text
Documentation ABI entry for overlays sysfs entries.

Signed-off-by: Pantelis Antoniou <redacted>
---
 Documentation/ABI/testing/sysfs-firmware-devicetree-overlays | 9 +++++++++
 1 file changed, 9 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..5a07499
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-firmware-devicetree-overlays
@@ -0,0 +1,9 @@
+What:		/sys/firmware/devicetree/overlays/
+Date:		March 2015
+Contact:	Pantelis Antoniou <pantelis.antoniou-OWPKS81ov/FWk0Htik3J/w@public.gmane.org>
+Description:
+		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.
-- 
1.7.12
```