Re: pbbuttonsd hangs on powerbook5,8

[Matthias G. <mat...@us...>]

On Tue, 20 Dec 2005 19:53:20 +1100
Andy Botting <an...@an...> wrote:

> Hi all,
> 
> On my new Powerbook5,8 i'm finding that all versions of pbbuttonsd that
> I have tried (0.6.8, 0.7.x) seem to hang trying to open the /dev/i2c-4
> device on my powerbook5,8 running gentoo.
> 
> I have both the i2c-dev and i2c-keywest modules loaded, and if i2c-dev
> isn't loaded, pbbuttonsd starts ok. 
>
> pbbuttonsd will sit there forever, and even if I give it a kill -9,
> pbbuttonsd will stay until I reboot, and i have tried recreating i2c-4
> using mknod.

That's bad news but sometimes it must happen. The LMU detection (that's
the i2c device that controls the ambient sensor and the keyboard
illumination) in pbbuttonsd is quite a hack. I don't have the
appropriate hardware at hand so developing a better solution is quite
difficult and I need someone who is willing to help me with testing.

As first step you could send me a copy of your OF device tree:
         tar -czvf device-tree.tgz /proc/device-tree

In the meantime you should remove i2c-4 so that pbbuttonsd wouldn't hang.
A better LMU detection function is on my list but as already mentioned this
will take a while. Would you help me with testing?

  Best Regards
    Matthias