Re: Bluetooth UDEV info like empty after hi2hci

[Kay Sievers <kay.sievers@vrfy.org>]

On Wed, Feb 08, 2006 at 03:53:12AM +0100, Marcel Holtmann wrote:
> > > > > I've asked this on bluetooth mailing list, but I cannot see if this
> > > > > issue come from UDEV or Bluetooth stack.
> > > > 
> > > > > --cut--
> > > > >   looking at device '/class/input/input4/mouse1':
> > > > >     KERNEL="mouse1"
> > > > >     SUBSYSTEM="input"
> > > > >     SYSFS{dev}="13:33"
> > > > > 
> > > > >   looking at device '/class/input/input4':
> > > > >     ID="input4"
> > > > >     BUS="input"
> > > > >     DRIVER=""
> > > > >     SYSFS{uniq}=""
> > > > >     SYSFS{phys}=""
> > > > >     SYSFS{name}="Bluetooth HID Boot Protocol Device"
> > > > 
> > > > The kernel driver needs to set the "struct device", to get a "device" link
> > > > in sysfs pointing to the physical device, otherwise the USB devices are not
> > > > reachable and udev can't match.
> > > 
> > > I would love to do that, but the Bluetooth subsystem is only available
> > > under /sys/class at the moment. So which "struct device" should I use?
> > 
> > Ah, ok. The Bluetooth "bus" never happened, right? I just remember we
> > talked about that last year with David in Ottawa. :) Passing the usb
> > "device" behind the hci would not be correct, right?
> 
> I got convinced that keeping them as class device is better and once the
> unified /sys/devices/ got merged we re-evaluate it.

Yeah, may make sense, even when it will not be that different for the
driver core users in the first run. It will just look a bit different for
userspace.

> Since not every Bluetooth device is attached over USB it might be kinda
> not the right way. However such a workaround can be used for now. Will
> this really work and not cause more troubles?

It should work without trouble, yes. But sure, it may not be worth the effort,
when it will change again later this year. So it should be fine for now to plug
in a shell script in the udev process and lookup that information from
somewhere else.

Cheers,
Kay


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