Re: [GnomeMeeting-list] Logitech quickcam pro 3000 and can't open /dev/dsp1 for recording

[Damien Sandras <dsandras seconix com>]

Hi,

Do not use the ALSA USB Audio module, but the OSS one for your webcam
only (modprobe audio instead).


Le lun 03/03/2003 à 11:20, Christian Nabski a écrit :
> Hi there,
> 
> I have been struggling for days now to setup gnomemeeting with my hardware 
> configuration and if  anybody can a shed a light on this I would be very 
> greatful.
> 
> My setup :
> - IBM Thinkpad A31
> - Linux distribution Redhat 8.0 with a 2.4.20 kernel.
> - Sound card is detected as intel8x0.
> The card works with oss and alsa drivers and also worked with standard 
> kernel and oss drivers.
> I currently am using the alsa drivers compiled within the kernel (patched 
> kernel 2.4.20).
> xmms works
> - Webcam is a Logitech quickcam pro3000
> The video portion of the quickcam works in xawtv and in gnomemeeting 
> without problems.
> - Gnomemeeting is the latest rpm from the gnomemeeting website.
> 
> I tried the wizard within gnomemeeting and selected /dev/dsp and 
> /dev/mixer for playback.
> This does not give errors.
> For recording I tried to use /dev/dsp1 and /dev/mixer1.
> Here I get the error "Can't open /dev/dsp1 for recording".
> No application uses the /dev/dsp1 (tested with lsof).
> As a matter of fact this works : cat /dev/dsp1 > /dev/dsp. I hear the 
> sound of the webcam mic through the speakers.
> Permissions :
> /dev/dsp ,dsp1, mixer and mixer1 have crw for user and group as root.
> 
> Note : 
> Also tried with both set to /dev/dsp and this did not give me an error but 
> I want to use the builtin microphone of the webcam.
> As a matter of fact no sound comes out the speakers (with an external 
> microphone attached).
> 
> My /etc/modules.conf :
> 
> alias parport_lowlevel parport_pc
> alias eth0 eepro100
> alias usb-controller usb-uhci
> 
> # ALSA portion
> alias char-major-116 snd
> alias snd-card-0 snd-intel8x0
> # OSS/Free portion
> alias char-major-14 soundcore
> alias sound-slot-0 snd-card-0
> # card #1
> alias sound-service-0-0 snd-mixer-oss
> alias sound-service-0-1 snd-seq-oss
> alias sound-service-0-3 snd-pcm-oss
> alias sound-service-0-8 snd-seq-oss
> alias sound-service-0-12 snd-pcm-oss
> #Webcam
> #alias char-major-81-1 pwc
> #post-install pwc /sbin/insmod --force 
> /lib/modules/2.4.20-wolk4.0s-pre10/kernel/usb/pwcx-i386.o >/dev/null 2>&1 
> || :
> #Webcam audio part
> #Other things
> post-install snd-card-0 /usr/sbin/alsactl restore >/dev/null 2>&1 || :
> pre-remove snd-card-0 /usr/sbin/alsactl store >/dev/null 2>&1 || :
> 
> I really would like to use gnomemeeting as I think this a really cool 
> program ...
> 
> Regards,
> 
> Christian
> 
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-- 
 _	Damien Sandras
(o-	GnomeMeeting: http://www.gnomemeeting.org/
//\	FOSDEM 2003:  http://www.fosdem.org
v_/_	H.323 phone:  callto://ils.seconix.com/dsandras seconix com