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    SubjectRe: [PATCH/RFC?] usb/input: Add support for fn key on Apple PowerBooks
    On Sun, 2006-01-01 at 00:51 +0100, Michael Hanselmann wrote:
    > On Sun, Dec 25, 2005 at 11:04:30PM -0500, Dmitry Torokhov wrote:
    > > Well, we have used 11 out of 32 available bits so there still some
    > > reserves. My concern is that your implementation allows only one
    > > hook to be installed while with quirks you can have several of them
    > > active per device.
    > Below you find an implementation using quirks:

    I've been using the other patch for some time now and while it's a
    life-saver, it does have one annoying little issue: If you press a key
    with the Fn key down and release that key with the Fn key up, your key
    is stuck. That is, the patch changes the keycode for Up & Down events
    separately based on the Fn state at the time of the event.

    What should be done is that when you release a key, you send the key up
    with the keycode that matches the Fn state at the time the key was
    pressed. That can easily be done using a simple bitmap that keeps track
    of the Fn state on keydown for the various keycodes.


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