* Re: [linux-audio-dev] full-duplex
@ 1999-10-11 15:45 Benno Senoner
1999-10-12 2:02 ` Paul Barton-Davis
0 siblings, 1 reply; 2+ messages in thread
From: Benno Senoner @ 1999-10-11 15:45 UTC (permalink / raw
To: linux-sound
On Mon, 11 Oct 1999, Paul Barton-Davis wrote:
> >ALSA:
> >Won't compile with gcc-2.95 but it's probably similar to OSS/Free.
>
> ALSA:
> 1) open the device O_RDWR. then use it the way you'd expect,
> independent of the card type or anything else.
>
> OSS/Free or OSS/Commercial:
> 1) forget about it for full-duplex. its just not reliable and/or too
> card dependent.
>
> --p
Hi,
Paul gave me a code fragment to use the soundcard in fullduplex mode,
(My old code were not able to perform DSP_SET_FRAGMENT, because
of wrong order of soundcard initialization).
But my Turtlebeach on my P133 with Tyan Tomcat motherboard (HX)
locks up the kernel some times.
( I tried 2.2.5 and 2.2.10 )
Is this due to a hw problem of buggy mainboards (from the Audio-quality HOWTO
:-) ) ?
Is there a workaround for OSS/Free ?
Does have ALSA the same problems ?
thanks for infos.
regards,
Benno.
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [linux-audio-dev] full-duplex
1999-10-11 15:45 [linux-audio-dev] full-duplex Benno Senoner
@ 1999-10-12 2:02 ` Paul Barton-Davis
0 siblings, 0 replies; 2+ messages in thread
From: Paul Barton-Davis @ 1999-10-12 2:02 UTC (permalink / raw
To: linux-sound
[ ... full duplex audio ... OSS ... ALSA ]
>But my Turtlebeach on my P133 with Tyan Tomcat motherboard (HX)
>locks up the kernel some times.
>( I tried 2.2.5 and 2.2.10 )
>
>Is this due to a hw problem of buggy mainboards (from the Audio-quality HOWTO
>:-) ) ?
>
>Is there a workaround for OSS/Free ?
>Does have ALSA the same problems ?
i have used ALSA in full duplex mode for very long periods, and it
never locks up my 2.2.10 kernel, or any other kernel i have tried it
with.
on the other hand, some time back, i thought i had done the same with
OSS and not had problems either, so i don't know where the problem
might be.
--p
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1999-10-11 15:45 [linux-audio-dev] full-duplex Benno Senoner
1999-10-12 2:02 ` Paul Barton-Davis
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