Re: OSS ioctls...

[Maciej Hrebien <m_hrebien@wp.pl>]

Maciej Hrebien wrote:
> 
> Richard Cooper wrote:
> >
> > I am going to go insane...  Please help...
> >
> > Here's my code:
> >
> >    section .text
> >
> >    %define SNDCTL_DSP_RESET 0x5000
> >    %define SNDCTL_DSP_SPEED 0x5002
> >    %define SNDCTL_DSP_SETFMT 0x5005
> >    %define SNDCTL_DSP_GETFMTS 0x500B
> >    %define SNDCTL_DSP_CHANNELS 0x5006
> >    %define SNDCTL_DSP_POST 0x5008
> >    %define SNDCTL_DSP_SETFRAGMENT 0x500A
> >    %define AFMT_S16_LE 0x0010
> >
> >    sys sys_open, dev_dsp, O_WRONLY; systrap "opening /dev/dsp"
> >    mov [out_desc], eax
> >
> >    sys sys_ioctl, [out_desc], SNDCTL_DSP_RESET, 0;               systrap
> > "resetting dsp"
> >    sys sys_ioctl, [out_desc], SNDCTL_DSP_GETFMTS, formats;       systrap
> > "getting dsp formats"
> >    sys sys_ioctl, [out_desc], SNDCTL_DSP_CHANNELS, channels;     systrap
> > "setting dsp channels"
> >    sys sys_ioctl, [out_desc], SNDCTL_DSP_SPEED, speed;           systrap
> > "setting dsp speed"
> >    sys sys_ioctl, [out_desc], SNDCTL_DSP_SETFMT, format;         systrap
> > "setting dsp format"
> >    sys sys_ioctl, [out_desc], SNDCTL_DSP_SETFRAGMENT, fragment;  systrap
> > "setting dsp fragment size"
> >
> >    section .data
> >
> >    channels dd 1
> >    speed dd 8000
> >    format dd AFMT_S16_LE
> >    formats dd 0
> >    fragment dd $00080006
> >    ass dd 0
> >
> 
> [cut]
> 
> Correct me if i'm wrong but as i remember the ioctl gets an
> int (dd) as an argument - not an address. So [] is needed.

What am i talking about? sorry! Did you tried the
linuxassembly.org/articles/audio.html? Your code looks very similar and
%define's seems to be different.

-- 
Maciej Hrebien