RE: Audio has no IRQ (the white box)

There's also a native sound driver module for the CS5530 available for
Linux that seems to work quite nicely that you can get from the National
Semiconductor website

http://wwwd.national.com/national/SReleaseF.nsf/03101f12ebc3dfcf87256d19
00545722/0a426fd2446626f287256be2006cbf0f?OpenDocument

Need to sign up to the site to get it though...

Richard Betts

-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Jean-Paul Smets
Sent: 27 July 2003 22:27
To: Hans Schou; [email protected]
Subject: Re: [Openbrick] Audio has no IRQ (the white box)


We are using audio on OpenBrick (for the tvbrick or tvbrick player for 
example). The trick is to disable MPU in the BIOS

Then, use a sb module

JPS.

Le Jeudi 24 Juillet 2003 03:31, Hans Schou a écrit :
> Hi
>
> Can someone help with audio on OpenBrick?
>
> First I tried just sndconfig but it end up saying that I need to set 
> PNP in the BIOS to 'no', which it already is.
>
> At http://externe.net/leaf-bering/ it says it should be a 
> SoundBlaster16 compatible, then I tried:
>   modprobe sb io=0x220 irq=5 dma=1 dma16=5 mpu_io=0x330
> but here the system hangs (reboot?).
> The parameters is what is specified in BIOS.
>
> During boot from BIOS (before bootloader) I got:
>  Vend Dev  Clas Device Class       IRQ
>  1078 0103 0401 Multimedia Device   NA
> Why is there no IRQ assigned to multimedia? It says 'NA'.
>
> When booted, I tried a:
>   cat /proc/pci
> ...
>   Bus  0, device  18, function  3:
>     Multimedia audio controller: Cyrix Corporation 5530 Audio [Kahlua]

> (rev 0). Non-prefetchable 32 bit memory at 0x40011000 [0x4001107f]. 
> ... It looks wrong to me. There should be a IRQ for multimedia here.
>
> According to the manual it should be an ac97 audio-chip. I tried that 
> also with no luck.
>
> My IRQ list now,  cat /proc/interrupts
>            CPU0
>   0:      98242          XT-PIC  timer
>   1:          2          XT-PIC  keyboard
>   2:          0          XT-PIC  cascade
>   8:          1          XT-PIC  rtc
>  10:       2378          XT-PIC  eth0
>  11:         40          XT-PIC  usb-ohci
>  14:      26146          XT-PIC  ide0
> NMI:          0
> LOC:          0
> ERR:          0
> MIS:          0
>
> Is the audio suppose to work with no IRQ?
> How is your setup?
>
> best regards/hans

-- 
Jean-Paul Smets-Solanes 
Nexedi CEO    Tel. +33(0)6 62 05 76 14    Fax. +33(0)1 53 01 09 29

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