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Re: i810 Chipset troubles...

On Tue, Mar 07, 2000 at 03:15:27PM +0530, Kedar Patankar wrote:

I have not written a single hardware device driver. So take what I say
with a grain of salt.

> 	So I finally begun hacking the sources myself. It turns out that
> the i810 (82801AA, which intel calls as ICH - integrated controller hub)
> presents the in built sound stuff in the chipset as a PCI device, with
> vendor ID 0x8086 (intel), and device id 0x2415 (82801AA).
> 	I wrote a small module that does this detection, and then looks at
> the global control and status registers of the on-board ac97 codec bus
> mastering registers (offsets 0x2c and 0x30 in i/o space).
> 	Strangely both the registers are zero.

There may be a programming error that's leading you to the wrong registers.
Can you try to validate that you are trying to access the right registers
by looking for a register that's non zero ?