Fix to ess1788 playing sound slowly

[Herbert Ho]

it's nice to know i'm not the only one with ess problems.

i contacted the driver author some time  ago with this same problem
and the same fix was made.  supposely a patch was sent to alan...

but what i'm more interested in is if there were any other changes to
make this work for you.  i have a ess1888 and i haven't been able to
get it to work properly since moving over to 2.2.x nearly a year ago.

i got the slow sound problem fix, but my sound will dma timeout if
there are ANY hard drive reads while its playing.

the driver author informed me it might be a "slow" ide interface, but
i haven't been able to get any help with it...any clue?

thanks in advance,

herbert

On Sun, Jan 30, 2000 at 10:50:05PM -0800, E J wrote:
> Fix to ESS1788 on my Compaq 5536 from playing sounds too slowly.
> The problem occurred when I from Redhat 6.0 (kernel 2.2.5-15) to
> Redhat 6.1 (kernel 2.2.12-20, the problem is still there on kernel
> 2.2.14).  The program sndconfig detected my sound chip ESS1788 as a
> ESS1888.  I had to modify the sb_ess.c to make the sound play
> correctly instead of extremely slowly.
> 
> 
> $cat /dev/sndstat
> OSS/Free:3.8s2++-971130
> Load type: Driver loaded as a module
> Kernel: Linux localhost.localdomain 2.2.12-20 #1 Mon Sep 27 10:25:54 EDT 
> 1999 i586
> Config options: 0
> 
> Installed drivers:
> 
> Card config:
> 
> Audio devices:
> 0: ESS ES1888 AudioDrive (rev 11) (3.01)
> 
> Synth devices:
> 0: Yamaha OPL3
> 
> Midi devices:
> 0: ESS ES1688
> 
> Timers:
> 0: System clock
> 
> Mixers:
> 0: Sound Blaster
> $
> 
> $ vi /usr/src/linux/drivers/sound/sb_ess.c
> :set nu
>    1201         /* AAS: info stolen from ALSA: these boards have different 
> clocks */
>    1202 /*      switch(devc->submodel) { */
>    1203 /* APPARENTLY NOT 1869 AND 1887
>    1204                 case SUBMDL_ES1869:
>    1205                 case SUBMDL_ES1887:
>    1206 */
>    1207 /*              case SUBMDL_ES1888:
>    1208                         devc->caps |= SB_CAP_ES18XX_RATE;
>    1209                         break;
>    1210         }
>    1211 */
> 
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