Merge remote-tracking branch 'access_once/linux-next'

[karo-tx-linux.git] / Documentation / ABI / testing / sysfs-bus-usb

diff --git a/Documentation/ABI/testing/sysfs-bus-usb b/Documentation/ABI/testing/sysfs-bus-usb
index 864637f25bee49a616865901ed6b0d4daa1791c8..3a4abfc44f5e0d8a9e358626c1ca8251d756003d 100644 (file)
--- a/Documentation/ABI/testing/sysfs-bus-usb
+++ b/Documentation/ABI/testing/sysfs-bus-usb
@@ -1,3 +1,23 @@
+What:          /sys/bus/usb/devices/INTERFACE/authorized
+Date:          August 2015
+Description:
+               This allows to authorize (1) or deauthorize (0)
+               individual interfaces instead a whole device
+               in contrast to the device authorization.
+               If a deauthorized interface will be authorized
+               so the driver probing must be triggered manually
+               by writing INTERFACE to /sys/bus/usb/drivers_probe
+               This allows to avoid side-effects with drivers
+               that need multiple interfaces.
+               A deauthorized interface cannot be probed or claimed.
+
+What:          /sys/bus/usb/devices/usbX/interface_authorized_default
+Date:          August 2015
+Description:
+               This is used as value that determines if interfaces
+               would be authorized by default.
+               The value can be 1 or 0. It's by default 1.
+
 What:          /sys/bus/usb/device/.../authorized
 Date:          July 2008
 KernelVersion: 2.6.26