[coreboot] Using USB keyboard in payloads

Peter Stuge peter at stuge.se
Mon Nov 19 19:05:23 CET 2012

Patrick Georgi wrote:
> This only means that the device provides multiple interfaces.

Dave, please send lsusb -v output for this keyboard.

> In USB you have to select one, and the HID driver simply defaults
> to the first. We didn't find a useful clue what to do in limited
> environments when encountering such a situation - ie. any standard
> that proposes that the first interface should provide a "typical
> keyboard".

A composite device (multiple interfaces) will have various different
indicators in the descriptors for which interface is the actual

What happens currently if I have two different keyboards connected?


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