How to write driver based ALSA for ARM ?

How to write driver based ALSA for ARM ?

[sudong]

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Hi
  I want to write a AC'97 sound driver for ARM cpu based ALSA. I
have seen "writing an ALSA driver" written by Takashi Iwai, but it
focuses mainly on the PCI soundcard. I don't find any source code for
ARM in ALSA driver.
  Who can give me any suggestion? Where can I find any open source
code of ac97 sound driver as reference? 
Thanks!

Sudong

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Re: How to write driver based ALSA for ARM ?

[Eckhard Jokisch]

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Hello Sudong,
one major thing is that most of the ARM platforms that I know don't have 
anything like ISA or PCI. so you may need a lot of information about the 
hardware architecture. I think that you can take some of the ALSA code from 
alsa-kernel/arm/sa11xx-uda1341.c  . 

Eckhard 
> Hi
>   I want to write a AC'97 sound driver for ARM cpu based ALSA. I
> have seen "writing an ALSA driver" written by Takashi Iwai, but it
> focuses mainly on the PCI soundcard. I don't find any source code for
> ARM in ALSA driver.
>   Who can give me any suggestion? Where can I find any open source
> code of ac97 sound driver as reference?
> Thanks!
>
> Sudong

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