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-rw-r--r--Documentation/ABI/testing/sysfs-class-led-trigger-usbport1
1 files changed, 1 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-class-led-trigger-usbport b/Documentation/ABI/testing/sysfs-class-led-trigger-usbport
index f440e690daef..eb81152b8348 100644
--- a/Documentation/ABI/testing/sysfs-class-led-trigger-usbport
+++ b/Documentation/ABI/testing/sysfs-class-led-trigger-usbport
@@ -8,5 +8,6 @@ Description:
selected for the USB port trigger. Selecting ports makes trigger
observing them for any connected devices and lighting on LED if
there are any.
+
Echoing "1" value selects USB port. Echoing "0" unselects it.
Current state can be also read.