[pulseaudio-discuss] udev detect not working

[John Frankish]

> -----Original Message-----
> From: pulseaudio-discuss-bounces+j-
> frankish=slb.com at lists.freedesktop.org [mailto:pulseaudio-discuss-
> bounces+j-frankish=slb.com at lists.freedesktop.org] On Behalf Of Colin
> Guthrie
> Sent: Sunday, 02 October, 2011 23:32
> To: pulseaudio-discuss at lists.freedesktop.org
> Subject: Re: [pulseaudio-discuss] udev detect not working
> 
> 'Twas brillig, and John Frankish at 02/10/11 12:23 did gyre and gimble:
> >>>> Is there any pulseaudio udev module or udevadm troubleshooting I
> >>>> can
> >>> try?
> >>>
> >>> There may be some udevadm tricks (I'm not an expert), but other than
> >>> that you could just scatter some more debug statements throughout
> >>> udev-detect code and try and suss it out.
> >>>
> >> Thanks for the suggestion, but scattering debug statements in the
> >> udev- detect code it a little beyond me (unless somebody suggests
> >> what to put where).
> >>
> >> Does anybody else have any ideas?
> >
> > Udev is definitely finding the sound hardware:
> >
> > $ udevadm info -qall -p /sys/class/sound/card0
> >
> > P: /devices/pci0000:00/0000:00:1b.0/sound/card0
> > E: DEVPATH=/devices/pci0000:00/0000:00:1b.0/sound/card0
> > E: SUBSYSTEM=sound
> > E: SOUND_INITIALIZED=1
> > E: ID_BUS=pci
> > E: ID_VENDOR_ID=0x8086
> > E: ID_MODEL_ID=0x27d8
> > E: ID_PATH=pci-0000:00:1b.0
> > E: ID_PATH_TAG=pci-0000_00_1b_0
> > E: SOUND_FORM_FACTOR=internal
> >
> > I take it the pulseaudo module-udev-detect depends on 78-sound-
> card.rules - is there some minimum version I can start from to troubleshoot?
> 
> 
> Yeah 78-sound-cards rules is needed.
> 
> 
> Not sure about minimum version but PA should work with any fairly recent
> used (i.e. the last few releases).
> 
> Re debugging I was just thinking about putting in some calls to
> "pa_log_debug()" at various points between the module loading and the
> printing of the "found 0 cards" line.
> 
> I've not looked at the code recently, so I cannot comment more than that
> just now.
> 
> I'll be kinda busy for the next little while so can't really help at the moment,
> but if I get the chance I'll try and cook up a debugging patch you can apply.
> But feel free to have a go yourself :)
> 
Given  I know udevadm can see my sound card, it is possible for debugging purpose to modify
78-sound-card.rules to contain just one line that will find the pci sound card? If so, which one?