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-rw-r--r--Documentation/ABI/testing/sysfs-bus-optee-devices9
1 files changed, 9 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-bus-optee-devices b/Documentation/ABI/testing/sysfs-bus-optee-devices
index 0f58701367b6..af31e5a22d89 100644
--- a/Documentation/ABI/testing/sysfs-bus-optee-devices
+++ b/Documentation/ABI/testing/sysfs-bus-optee-devices
@@ -6,3 +6,12 @@ Description:
OP-TEE bus provides reference to registered drivers under this directory. The <uuid>
matches Trusted Application (TA) driver and corresponding TA in secure OS. Drivers
are free to create needed API under optee-ta-<uuid> directory.
+
+What: /sys/bus/tee/devices/optee-ta-<uuid>/need_supplicant
+Date: November 2023
+KernelVersion: 6.7
+Contact: op-tee@lists.trustedfirmware.org
+Description:
+ Allows to distinguish whether an OP-TEE based TA/device requires user-space
+ tee-supplicant to function properly or not. This attribute will be present for
+ devices which depend on tee-supplicant to be running.