Documentation sysfs-bus-usb: Document the speed file used by libusb

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/Documentation/ABI/stable/sysfs-bus-usb b/Documentation/ABI/stable/sysfs-bus-usb
index 6b59aeaee75efd854812daa470b1590989bfebd2..a596414964c5ce1fe054a9950d0ec5ad53797bff 100644 (file)
--- a/Documentation/ABI/stable/sysfs-bus-usb
+++ b/Documentation/ABI/stable/sysfs-bus-usb
@@ -124,3 +124,9 @@ Description:
                can be trusted, and can be used to seek forward one (sub)
                descriptor at a time until the next config descriptor is found.
                All descriptors read from this file are in bus-endian format
+
+What:          /sys/bus/usb/devices/.../speed
+KernelVersion: since at least 2.6.18
+Description:
+               Speed the device is connected with to the usb-host in
+               Mbit / second. IE one of 1.5 / 12 / 480 / 5000.