SUCCESS!!! RE: why would i *not* be able to update a register in ac97#0-0+regs when it's read write?

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Title: SUCCESS!!! RE: why would i *not* be able to update a register in ac97#0-0+regs when it's read write?



-----Original Message-----
From: alsa-devel-bounces@xxxxxxxxxxxxxxxxxxxxx on behalf of John Utz
Sent: Wed 2/21/2007 9:44 AM
To: Clemens Ladisch; Lee Revell
Cc: alsa-devel@xxxxxxxxxxxxxxxxxxxxx
Subject: Re: why would i *not* be able to update a register in ac97#0-0+regs when it's read write?




-----Original Message-----
From: Clemens Ladisch [mailto:cladisch@xxxxxxxxxxxx]
Sent: Tue 2/20/2007 11:29 PM
To: John Utz; Lee Revell
Cc: alsa-devel@xxxxxxxxxxxxxxxxxxxxx
Yup, that did it!

 chan-id.wav now calls out on the surround and center/lfe outputs with the vt1618 so we now actually have a reasonable hope of shipping our product.

Thankyou very much for your assistance, patch to follow in the next few days assuming that i receive no managerial grief.



Subject: Re: why would i *not* be able to update a register in ac97#0-0+regs when it's read write?

> Nothing changed, i can still write to many registers but not the 1 that i
> am attempting to change: 60h UAJ Control; Does the '(Page ID = 00h)'
> alter how i need to access the register?

Yes, you have to set the correct page in the Audio Interrupt and Paging
register (24h); see the AC97_PAGE_* defines in ac97_codec.h.

Thankyou Clemens, i thought there might be something to it, but i wasnt sure what.

This should be a big help


HTH
Clemens



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