From: James Courtier-Dutton <James@superbug.demon.co.uk>
To: alsa-devel@lists.sourceforge.net
Subject: Programming the unknow P16v chip on the Audigy2
Date: Fri, 28 May 2004 19:49:59 +0100 [thread overview]
Message-ID: <40B789D7.8060704@superbug.demon.co.uk> (raw)
The Audigy2 has lots of registers for the emu10k2 chip.
These are accessed by programming
#define PTR 0x00 /* Indexed register set pointer register */
/* NOTE: The CHANNELNUM and ADDRESS words can */
/* be modified independently of each other. */
#define DATA 0x04 /* Indexed register set data register */
Basically, one writes the register address to PTR, and then read or
write to DATA.
On the Audigy2 there is a similar setup for 0x20 and 0x24. I suspect
that this is used to program the p16v chip.
Had anyone looked into those registers, and tried to guess what they do ?
I might give it a go, once I finish the Audigy LS driver.
Cheers
James
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next reply other threads:[~2004-05-28 18:49 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-05-28 18:49 James Courtier-Dutton [this message]
2004-06-01 20:15 ` Programming the unknow P16v chip on the Audigy2 Thomas Witzel
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