Re: multimedia keys not working in 2.6.0-test6

From: Vojtech Pavlik (vojtech_at_suse.cz)
Date: 09/30/03

  • Next message: Bill Davidsen: "Re: [PATCH] Athlon Prefetch workaround for 2.6.0test6" 
    Date:	Tue, 30 Sep 2003 17:46:40 +0200
To: Andries Brouwer <aebr@win.tue.nl>

    On Tue, Sep 30, 2003 at 04:56:21PM +0200, Andries Brouwer wrote:

    > On Tue, Sep 30, 2003 at 01:54:59PM +0200, Pau Aliagas wrote:
    >
    > > These are the messages I get when pressing P1 and P2 in my laptop.
    > >
    > > kernel: atkbd.c: Unknown key pressed (translated set 2, code 0x153, data 0x74, on isa0060/serio0).
    > > kernel: atkbd.c: Unknown key released (translated set 2, code 0x153, data 0xf4, on isa0060/serio0).
    > >
    > > Email and browser keys report a correct code and I can bind thm to any app
    > > using xbindkeys, but with thes two there's no way.
    >
    > These keys produce scancode e0 74. Untranslated e0 53.
    > Entry 0x153 of atkbd_set2_keycode[] is 0, that is why
    > the key is called unknown.
    >
    > The normal way of assigning a keycode is by using setkeycodes.
    > This uses the KDSETKEYCODE ioctl, but it is broken at present.
    >
    > The reason is that it is written to use 0-127 for scancode xx
    > and 128-255 for scancode pair e0 xx. (Translated set2, of course.)
    > However, the current kernel untranslates what the keyboard sends
    > and then uses a scancode-to-keycode mapping for untranslated set 2.
    > That breaks this ioctl.
    > Moreover, it uses a shift of 256 instead of 128 for e0.
    > That also breaks this ioctl.

    It actually works pretty well on 2.6. You jsut have to pass a different
    number on 2.6 than you do on 2.4 - that is:

            setkeycodes 153 148

    153 is the reported scancode (e0 53 untranslated, e0 74 translated),
    148 is the keycode for KEY_PROG1

    (There is still a small bug in the bitmap setting, and I'll be fixing
    that tonight, but unless you have more than one scancode generating the
    same keycode, it won't bite you.) 

    -- 
Vojtech Pavlik
SuSE Labs, SuSE CR
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