[ltp] Observation: /dev/dsp in kernel 2.6.16 can now be multiply opened!
Andreas Klöckner
linux-thinkpad@linux-thinkpad.org
Mon, 10 Jul 2006 23:22:15 -0500
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On Monday 10 July 2006 22:51, wes schreiner wrote:
> Richard Neill wrote:
> > 5)Now, to my surprise, I discovered that even /dev/dsp can be opened
> > by several applications at a time. This definitely never used to be
> > the case!
> This has always been the case, but only for certain hardware that
> supports multiple opens. All the mess with dmix or sound servers is to
> get around the hardware that only supports a single open. So it isn't
> your kernel version that matters, it is the sound hardware. For example,
> the Intel ICH5 stuff on the box I'm on now is only single open, even
> with 2.6.16. Yet the EMU10K could always do multiple opens, even with
> 2.4.x and 2.2.x kernels.
>
> What hardware are you using that supports multiple opens? A ThinkPad I'm
> guessing, but what model?
My old A21m supports this.
Andreas
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