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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 |
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