Re: AC97 Driver

Hubert Feyrer <[email protected]>
Newsgroups gmane.os.netbsd.devel.general,gmane.os.netbsd.ports.i386,gmane.os.netbsd.general
Message-ID <Pine.GSO.4.53.0311290056400.6140@rfhpc8317>
On Fri, 28 Nov 2003, Rishabh Kumar Goel wrote:
> I want to write the ACLC driver for one of the TOSHIBA chipsets. Can u
> guys tell me where to start. I m currently seeing the ac97 driver in
> /dev/ic directory. Is the driver complete I m using NetBSD 1.6
> currently.

As far as I understand, AC97 is just a frontend/API that the
OS/applications(?) can use, and you still have to add hardware-specific
code to talk to the actual chipset. E.g. looking at sys/dev/pci/files.pc,
quite many drivers do ac97, but also interface various hardware devices -
maybe look at these drivers: clcs, clct, fms, eap, auich, auvia, neo, esa,
sem, yds, emuxki, autri ("grep ac97 files.pci").


 - Hubert

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