usb/144414: Apple "Fn" key doesn't work properly

[Steven Noonan]

On Sun, Mar 14, 2010 at 6:27 AM, Hans Petter Selasky <hselasky at c2i.net> wrote:
> On Sunday 14 March 2010 15:01:39 Steven Noonan wrote:
>> On Sun, Mar 14, 2010 at 5:48 AM, Hans Petter Selasky <hselasky at c2i.net>
> wrote:
>> > On Sunday 14 March 2010 14:22:33 Steven Noonan wrote:
>> >> On Sun, Mar 14, 2010 at 3:01 AM, Hans Petter Selasky <hselasky at c2i.net>
>> >
>> > wrote:
>> >> > On Sunday 14 March 2010 11:30:04 Steven Noonan wrote:
>> >> >> The following reply was made to PR usb/144414; it has been noted by
>> >> >> GNATS.
>> >> >>
>> >> >> From: Steven Noonan <steven at uplinklabs.net>
>> >> >> To: perryh at pluto.rain.com
>> >> >> Cc: freebsd-usb at freebsd.org, freebsd-gnats-submit at freebsd.org
>> >> >> Subject: Re: usb/144414: Apple "Fn" key doesn't work properly
>> >> >> Date: Sun, 14 Mar 2010 03:26:19 -0700
>> >> >>
>> >> >>  On Thu, Mar 4, 2010 at 12:01 AM, Steven Noonan
>> >> >> <steven at uplinklabs.net> wrot=
>> >> >>
>> >> >>  e:
>> >> >>  > On Wed, Mar 3, 2010 at 11:00 PM, Steven Noonan
>> >> >> <steven at uplinklabs.net> > wr=
>> >> >>
>> >> >>  ote:
>> >> >>  >> On Wed, Mar 3, 2010 at 10:36 PM, =C2=A0<perryh at pluto.rain.com>
>> >> >> wrote: >>> Steven Noonan <steven at uplinklabs.net> wrote:
>> >> >>  >>>> Interestingly, my tilde key doesn't work either (though the key
>> >> >>  >>>> press is detected, no character shows when the key is pressed).
>> >> >>  >>>
>> >> >>  >>> Any chance it is configured as a "dead" key? =C2=A0If you press
>> >> >>  >>> tilde followed by n do you get an n with a tilde over it?
>> >> >>  >>
>> >> >>  >> Nope. It simply does nothing in the console.
>> >> >>  >>
>> >> >>  >> But in X11, it does something very odd. Shift+Tilde Key gives me
>> >> >> '>', >> and Tilde Key gives me '<'. And Alt+Tilde gives me... What? I
>> >> >> don't >> even know what action. It's grabbing some arbitrary command
>> >> >> in my >> .bash_history. It gave me the first item in my .bash_history
>> >> >> the first >> time I tried it. Then I tried an arbitrary command
>> >> >> ("echo"), and then >> Alt+Tilde gave me the second command in my
>> >> >> .bash_history. Whaa?
>> >> >>
>> >> >>  Any more ideas/news on this from anyone?
>> >> >>
>> >> >>  The tilde key thing is especially irritating.
>> >> >
>> >> > static uint8_t
>> >> > ukbd_apple_swap(uint8_t keycode) {
>> >> >        switch (keycode) {
>> >> >        case 0x35: return 0x64;
>> >> >        case 0x64: return 0x35;
>> >> >        default: return keycode;
>> >> >        }
>> >> > }
>> >> >
>> >> > Can you try to change the function above in ukbd.c to only return
>> >> > keycode? Any difference?
>> >>
>> >> Yep, commenting the two case lines brought my tilde key back. Any idea
>> >> what the ukbd_apple_swap() function was _supposed_ to be doing?
>> >>
>> >> Also, there's only one thing left (input-wise) that I can't get to
>> >> work, and that's the 'delete' key (Fn+Backspace). I'm pretty certain
>> >> that it's not a problem with Fn+Backspace failing to map to Delete,
>> >> because my non-Mac i386 box has the same problem.
>> >>
>> >> Everything I read online keeps saying to muck with an .inputrc file
>> >> (for bash, anyway), but I haven't been able to get it to work. Places
>> >> I've looked have said to add this to .inputrc:
>> >>
>> >> "\e[3~": delete-char
>> >>
>> >> But this seems to have no effect (and I tried bind -f .inputrc in case
>> >> my INPUTRC environment variable wasn't working). Is there something
>> >> FreeBSD-specific I'm not seeing, or what?
>> >>
>> >> - Steven
>> >
>> > Hi Steven,
>> >
>> > Can you talk this over with Christoph and send me a patch when you
>> > agreed? He's the one that made the Apple-SWAP key patch. Meanwhile I
>> > suggest the following patch:
>> >
>> > ==== //depot/projects/usb/src/sys/dev/usb/input/ukbd.c#47 -
>> > src/sys/dev/usb/input/ukbd.c ====
>> > @@ -896,8 +896,7 @@
>> >                    hid_input, 0, &sc->sc_loc_apple_fn, &flags,
>> >                    &temp_id)) {
>> >                        if (flags & HIO_VARIABLE)
>> > -                               sc->sc_flags |= UKBD_FLAG_APPLE_FN |
>> > -                                   UKBD_FLAG_APPLE_SWAP;
>> > +                               sc->sc_flags |= UKBD_FLAG_APPLE_FN;
>> >                        DPRINTFN(1, "Found Apple FN-key\n");
>> >                        apple_keys = 1;
>> >                        sc->sc_kbd_id = temp_id;
>> >
>> >
>> > The hardware that Christoph was using had an Eject-key, while yours
>> > didn't. I think the patch above will make both cases work.
>> >
>> > Christoph, do you have any comments?
>> >
>> > http://p4db.freebsd.org/fileViewer.cgi?FSPC=//depot/projects/usb/src/sys/
>> >dev/usb/input/ukbd.c&REV=47
>>
>> Not quite true, my keyboard _does_ have an Eject key. The code doesn't
>> detect it though.
>>
>> - Steven
>>
>
> Could you try to figure out what key-press number corresponds to the eject
> key?
>
> --HPS
>

I'm not certain how to do so. It's somewhat of a chicken-and-the-egg
problem: unless it detects that the key is there, I can't find it.
Enabling 'hw.usb.ukbd.debug' doesn't print anything when Eject is
pressed.

- Steven