Date: Mon, 12 Jan 1998 07:47:04 +0100 (MET) From: Luigi Rizzo <luigi@labinfo.iet.unipi.it> To: julian@whistle.com (Julian Elischer) Cc: guido@gvr.org, hasty@rah.star-gate.com, jbryant@unix.tfs.net, gjp@erols.com, freebsd-hackers@FreeBSD.ORG Subject: Re: au files Message-ID: <199801120647.HAA12668@labinfo.iet.unipi.it> In-Reply-To: <Pine.BSF.3.95.980111234630.15549A-100000@current1.whistle.com> from "Julian Elischer" at Jan 11, 98 11:47:00 pm
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> just support a little more of the interface, so that more can be done.. :) > (dummy returns etc.) that wouldn't be hard, just look at the ioctl section in /sys/i386/isa/snd/sound.c which implements all the generic ioctl for audio. Of course you have to live with the limitations with /dev/pcaudio which gives about 5-6 bits of resolution, and I doubt the max sample rate (currently 8 KHz) can go much higher than 11025. This said, I have used my "tel" (vat-like) application with /dev/pcaudio and sort of works, the application just ignores the failures returned from the ioctl and assumes a default behaviour for the device. /dev/pcaudio is much like /dev/audio if you don't have to change modes. cheers luigi -----------------------------+-------------------------------------- Luigi Rizzo | Dip. di Ingegneria dell'Informazione email: luigi@iet.unipi.it | Universita' di Pisa tel: +39-50-568533 | via Diotisalvi 2, 56126 PISA (Italy) fax: +39-50-568522 | http://www.iet.unipi.it/~luigi/ _____________________________|______________________________________
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