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Re: Fwd: Re: lib/50276: [PATCH] Portability fixes for ossaudio.c
From: |
Samuel Thibault |
Subject: |
Re: Fwd: Re: lib/50276: [PATCH] Portability fixes for ossaudio.c |
Date: |
Thu, 24 Sep 2015 20:18:37 +0200 |
User-agent: |
Mutt/1.5.21+34 (58baf7c9f32f) (2010-12-30) |
Hello,
Robert Millan, le Thu 24 Sep 2015 20:09:27 +0200, a écrit :
> >Why isn't adding the missing defines to the Hurd soundcard.h possible?
>
> Not just possible but also desirable IMHO.
It may still be impossible at the moment actually. The
SNDCTL_DSP_MAPINBUF and SNDCTL_DSP_MAPOUTBUF ioctls are precisely
examples: they pass a struct which contains the address of a buffer.
This can not be expressed with the current handling of ioctls in
GNU/Hurd: the sound server can't read/write the client process memory.
Samuel