On Fri, 26 Sep 2003, Dr. med. [iso-8859-15] Günther Montag wrote:
> Hello
> I work at "hfkernel" by Tom Sailer, a program for pactor/rtty (soundcard ham
> radio digimodes). It seems complicated, because it uses realtime scheduling,
> select(), mmap(), and runs in 3 threads.
> It was made in 1996 for OSS; I am trying to get it running with ALSA.
>
> It is unique thing because it can do
> Pactor without the expensive PTC (something like a radio modem),
> may be of interest for many hams outside Europe /USA.
>
> I and friends see messages like
> " 512 fragments passed since last wakeup", in endless loop, leading to
> crashes, seems to be xruns, not able to ctrl-alt-del, have to switch off
> machine.
> .
> What do You think, how can ALSA support it, or Do I have to rewrite it for
> ALSA.
> I tried already with no success to say "Direct" and "non-block" in all
> combinations to /proc/asound/card0/pcm0p etc...
> If to rewrite, what function / ioctl matches
> SNDCTL_DSP_GETISPACE...SNDCTL_DSP_GETOSPACE...
> " ioctl(fd_audio, SNDCTL_DSP_GETIPTR, &cinfo) "
> and
> " ioctl(fd_audio, SNDCTL_DSP_GETOPTR, &cinfo) " ?
>
> The prog is at https//projects.sourceforge.net/hfterm.
> Here is one of the important functions out of l1/user/oss.c my prog:
> Thanks for Your ideas!
Try 0.9.7 release, it comes with some OSS emulation fixes.
Jaroslav
-----
Jaroslav Kysela <[EMAIL PROTECTED]>
Linux Kernel Sound Maintainer
ALSA Project, SuSE Labs
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