[alsa-devel] Problems with 32 bit apps on 64 bit OS using dmix and snd-ioctl32

[James Pearson]

Takashi Iwai wrote:
>>
>>OK, I'll do a bit more poking about to see if I can get 1.0.15rc1 to 
>>build ...
>>
>>Thanks
>>
>>James Pearson
>>
>>Configure output:
>>
>># ./configure --with-redhat=yes
> 
> 
> The output looks OK to me.
> Does the patch (to alsa-driver tree) fix the problem?
> 
> 
> Takashi
> 
> diff -r adfe4179d670 misc/ac97_bus.c
> --- a/misc/ac97_bus.c	Fri Aug 31 12:22:35 2007 +0200
> +++ b/misc/ac97_bus.c	Wed Sep 05 18:09:42 2007 +0200
> @@ -1,1 +1,3 @@
> +#include <sound/driver.h>
> +#include <sound/core.h>
>  #include "../alsa-kernel/ac97_bus.c"

Yes ... I did something similar - copied in ../alsa-kernel/ac97_bus.c 
and patched with alsa-driver-1.0.13/pci/ac97/ac97_bus.patch - which 
makes it compile - it bombs out later on some of the soc/ code - but as 
nothing similar exists in 1.0.13, I just skipped that with 'make -i' ...

However, with these 1.0.15rc1 modules installed, and using 
alsa-lib-1.0.15rc1, I get exactly the same problem with 32 bit apps:

Playing WAVE 'test.wav' : Signed 16 bit Little Endian, Rate 48000 Hz, Mono
aplay: pcm_write:1268: write error: Invalid argument

amd dmesg has:

ioctl32(aplay:6228): Unknown cmd fd(3) cmd(40045402){00} arg(ffffac98) 
on /dev/snd/timer
ioctl32(aplay:6228): Unknown cmd fd(5) cmd(c008551a){00} arg(0806ccd0) 
on /dev/snd/controlC0
ioctl32(aplay:6228): Unknown cmd fd(5) cmd(c008551b){00} arg(0806ccd0) 
on /dev/snd/controlC0
ioctl32(aplay:6228): Unknown cmd fd(3) cmd(000054a0){00} arg(00000325) 
on /dev/snd/timer

James Pearson