On Sat 05 Feb 2005 at 18:58:01 +0000, Charles M. Hannum wrote:
>  This patch is definitely not correct in general.  It will break full-duplex 
>  mode on chips that support it.

As I can see the patch, it only changes behaviour for the ESS_1888
model. And looking at it function pointer table (struct audio_hw_if
ess_1888_hw_if), it had a weird mix of "audio1" and "audio2" stuff in
the first place. So, without knowing specifics about the hardware, the
patch made sense to me.

>  Is the problem here that the ESS chip is only getting assigned one
>  DRQ or one IRQ?

That looks to be the case, judging by the boot messages:

ess0 at isa0 port 0x220-0x22f irq 5 drq 1
ess0: ESS Technology ES1888 [version 0x688b]
ess0: audio1 interrupting at irq 5
audio0 at ess0: half duplex, mmap, independent
opl0 at ess0: model OPL3
midi0 at opl0: ESS Yamaha OPL3

I also have this in my config file. I suppose I also copied from my
original source.

#ess*	at	isa? port 0x220 irq 5 drq 1 drq2 5   # ESS 18XX
ess*	at	isa? port 0x220 irq 5 drq 1 # ESS 18XX

What you are saying is perhaps that I should try the commented out
version with the original sources? I just did, and now I get these boot
messages:

ess0 at isa0 port 0x220-0x22f irq 5 drq 1,5
ess0: ESS Technology ES1888 [version 0x688b]
ess0: audio1 interrupting at irq 5
ess0: audio2 polled
audio0 at ess0: full duplex, mmap, independent
opl0 at ess0: model OPL3
midi0 at opl0: ESS Yamaha OPL3

but, unfortutately, no sound anymore. Well, perhaps just a small "click"
when I start mpg123.

-Olaf.
-- 
___ Olaf 'Rhialto' Seibert                            --  rhialto/at/falu.nl
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