[PATCH 2/3] Documentation sysfs-bus-usb: Document the speed file used by libusb

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Cc: Greg KH <gregkh@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Hans de Goede <hdegoede@xxxxxxxxxx>
---
 Documentation/ABI/stable/sysfs-bus-usb | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/Documentation/ABI/stable/sysfs-bus-usb b/Documentation/ABI/stable/sysfs-bus-usb
index 6b59aea..a596414 100644
--- 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.
-- 
1.8.3.1

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