The HAL Spec

[Joe Marcus Clarke]

On Sun, 2006-05-07 at 19:12 +0100, Richard Hughes wrote:
> On Fri, 2006-05-05 at 16:22 -0400, Joe Marcus Clarke wrote:
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> > I'm about to start implementing Firewire support for HAL for FreeBSD,
> > and I noticed a big disparity in the HAL spec and what Linux does.  When
> > I raised this kind of thing a few months ago, I was told to code to the
> > spec, but I have since noticed many things that Linux does differently
> > from the spec.
> 
> Like what? We should either fix the spec if it's wrong, or fix the linux
> stuff to match the spec if the spec if correct.

A few things.  First, firewire.  The spec defines three ieee1394
objects: ieee1394_host, ieee1394_node, and ieee1394.  There was a
specific commit to the Linux backend and to hal-device-manager, to merge
all of these under ieee1394.  For example, the spec says an
ieee1394_node has a guid property, but the Linux backend assigns this
property to the same ieee1394 object.

Next, there's pcmcia_socket.  The spec defines one property under this
object: pcmcia_socket.number.  However, the Linux backend uses the bus
type of pcmcia, and adds multiple properties.  No where in the spec do I
see a bus type of "pcmcia".  And the Linux backend does not use the
pcmcia_socket class anywhere.

Finally, and this is a clear typo in the spec, the oss class has a
property alsa.device_file. I believe this should be oss.device_file.

Joe

> 
> Thanks,
> 
> Richard.
> 
> 
-- 
Joe Marcus Clarke
FreeBSD GNOME Team      ::      gnome at FreeBSD.org
FreeNode / #freebsd-gnome
http://www.FreeBSD.org/gnome
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