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    SubjectRe: [PATCH/RFC?] usb/input: Add support for fn key on Apple PowerBooks
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    On Sun, 2005-12-25 at 23:04 -0500, Dmitry Torokhov wrote:
    > On Sunday 25 December 2005 16:20, Michael Hanselmann wrote:
    > > This patch adds a basic input hook support to usbhid because the quirks
    > > method is outrunning the available bits. A hook for the Fn and Numlock
    > > keys on Apple PowerBooks is included.
    >
    > 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.

    I haven't looked at the details so I can't comment much there, though
    the hook has the interest of making it possible to have it in a module
    that gets separately loaded if necessary, no ? Maybe the driver could
    maintain a list of hooks ?

    > As far as the hook itself - i have that feeling that it should not be
    > done in kernel but via a keymap.

    While I understand your feeling, it's a bit annoying in this specific
    case because previous models did this in hardware and all mac keymaps
    already account for that. Knowing how nasty it has been to get mac
    keymaps updated and in a good shape, and to get distros to properly get
    them, it makes a lot of sense to have this small hook in the kernel that
    makes the USB keyboard behave exactly like the older ADB couterparts.

    Ben.


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