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SubjectRe: [PATCH] Input: document the proper usage of EV_KEY and KEY_UNKNOWN
On Thu, May 31, 2007 at 07:28:14PM -0300, Henrique de Moraes Holschuh wrote:
> We have all the pieces needed to have sane, generic userland keyboard handling
> in place for a while now, but it was not sufficiently documented (or used!).
>
> If EV_KEY input drivers always generate scan codes that can be used to
> reprogram their keycode maps, and always generate EV_MSC MSC_SCAN events when
> they output an EV_KEY KEY_UNKNOWN event, userspace can trap those and feed it
> to a generic helper that can ask the user to assign a key code and function to
> that key.

I still disagree that this is the best approach. Userspace already has
the functionality to map keys if they produce a keycode. Producing
KEY_UNKNOWN would require the implementation of a stack of extra code.

--
Matthew Garrett | mjg59@srcf.ucam.org
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