Mailing-List: contact cygwin-help AT cygwin DOT com; run by ezmlm
Sender: cygwin-owner AT cygwin DOT com
Mail-Followup-To: cygwin AT cygwin DOT com
Date: Tue, 9 Mar 2004 09:30:49 +0100
Message-ID: <4034E3090003002F@mail-4.tiscali.it>
From: fabrizio DOT ge AT tiscali DOT it
Subject: SNDCTL_DSP_CHANNELS ioctl not implemented
To: cygwin AT cygwin DOT com
MIME-Version: 1.0
Content-Type: text/plain; charset="iso-8859-1"
Content-Transfer-Encoding: 8bit

Hello.

I compiled a program intended for Unix on Cygwin. It has a slight problem:
sound does not work because the program tries to call the SNDCTL_DSP_CHANNELS
ioctl on /dev/dsp, and it fails.

Looking at the source code, that ioctl is not implemented in fhandler_dsp.cc,
although it is defined in the header file.

fhandler_dsp.cc implements a similar ioctl, SNDCTL_DSP_STEREO, which takes
the arguments, increments it by 1 and sets the variable audiochannels_ to
the result. Maybe SNDCTL_DSP_CHANNELS would be identical, just without the
increbent by 1, but I am no expert so I cannot be sure.

Is it possible to implement SNDCTL_DSP_CHANNELS in future versions of Cygwin?

__________________________________________________________________
Tiscali ADSL SENZA CANONE:
Attivazione GRATIS, contributo adesione GRATIS, modem GRATIS,
50 ore di navigazione GRATIS.  ABBONARTI TI COSTA SOLO UN CLICK!
http://point.tiscali.it/adsl/index.shtml


--
Unsubscribe info:      http://cygwin.com/ml/#unsubscribe-simple
Problem reports:       http://cygwin.com/problems.html
Documentation:         http://cygwin.com/docs.html
FAQ:                   http://cygwin.com/faq/