Hallo Takashi!
> >
> > > ~/.asoundrc. simply add
> > >
> > > pcm.dsp0 pcm.default
> >
> > Thanks! It helped one step more!
> > Now:
> > ***
> > hfkernel[1488]: hfkernel 0.4.2 starting...
> > hfkernel[1488]: Your soundcard is full duplex capable.
> > Good; the reference time will be
> > derived from the sample clock, which should be accurate within +-20ppm.
> > So I hope your soundcard uses 'real' crystals instead of cheap ceramic
> > resonators. Adjust the clock with the soundcard correction factor.
> > ALSA lib pcm_plug.c:727:(snd_pcm_plug_hw_refine_schange) Unable to find
> > an usable access for 'dsp0'
> > hfkernel[1488]: error: probe_oss: mmap: ibuf: PROT_READ: Invalid argument
>
> hmm, how about the following?
>
> pcm.dsp0 {
> type hw
> card 0
> }
>
Oh, one step on!
Now no error any more from the ALSA lib,
but still it says.
hfkernel[1488]: error: probe_oss: mmap: ibuf: PROT_READ: Invalid argument
this comes from last line of following snip:
***
/*
* set fragment sizes
*/
apar = 0xffff0007U;
if (ioctl(fd_audio, SNDCTL_DSP_SETFRAGMENT, &apar) == -1)
errstr(SEV_FATAL, "ioctl: SNDCTL_DSP_SETFRAGMENT");
if (ioctl(fd_audio, SNDCTL_DSP_GETOSPACE, &oinfo) == -1)
errstr(SEV_FATAL, "ioctl: SNDCTL_DSP_GETOSPACE");
osize = oinfo.fragstotal * oinfo.fragsize;
if (ioctl(fd_audio, SNDCTL_DSP_GETISPACE, &iinfo) == -1)
errstr(SEV_FATAL, "ioctl: SNDCTL_DSP_GETISPACE");
isize = iinfo.fragstotal * iinfo.fragsize;
if (EXCESS_FRAGS * iinfo.fragsize > pagesize)
errprintf(SEV_FATAL, "OSS: input: fragment size %d times excess frags
> page
size %d\n",
iinfo.fragsize, pagesize);
/*
* mmap buffers
*
* BSD people attention: you may need to uncomment the PROT_READ
* feedback welcome: [EMAIL PROTECTED]
*/
if ((ibuf.v = mmap(NULL, isize, PROT_READ | PROT_WRITE,
MAP_ANON | MAP_PRIVATE, -1, 0)) == MAP_FAILED)
errstr(SEV_FATAL, "mmap: MAP_ANONYMOUS");
ibuf_ext = ibuf.v + isize;
if (munmap(ibuf.v, isize))
errstr(SEV_FATAL, "munmap: MAP_ANONYMOUS");
if ((ibuf.v = mmap(ibuf.v, isize, PROT_READ, MAP_FILE
| MAP_SHARED | MAP_FIXED,
fd_audio, 0)) == MAP_FAILED)
***
so i suppose something wrong with "isize"
only with ESS1938, it works with other cards.
Not-linear physical buffer in the card?
Do You know some hint, some trick out of ALSA API, how to "wrap" mmap?
günther
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