On Sun, 20 Jul 2003, Dirk Aust wrote:
> Hello all,
> I have some difficulties using the /dev/dsp devices, when trying to use the
> call:
>
> mmap2(NULL, 16384, PROT_READ, MAP_SHARED, 5, 0) = -1 EIO (Input/output error)
Note that you are allowed to mmap only stereo 16-bit streams with
the intel8x0 driver (and maybe only at 48kHz rate - check your
/var/log/messages, if your codec is restricted).
> If I'm not root, I even can't read() from that device, even though I'm the
> owner of /dev/dsp0.
Probably a permission problem.
Jaroslav
-----
Jaroslav Kysela <[EMAIL PROTECTED]>
Linux Kernel Sound Maintainer
ALSA Project, SuSE Labs
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