From owner-freebsd-current Tue Jun 9 09:04:06 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id JAA27559 for freebsd-current-outgoing; Tue, 9 Jun 1998 09:04:06 -0700 (PDT) (envelope-from owner-freebsd-current@FreeBSD.ORG) Received: from alpo.whistle.com (alpo.whistle.com [207.76.204.38]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id JAA27488; Tue, 9 Jun 1998 09:03:47 -0700 (PDT) (envelope-from julian@whistle.com) Received: (from daemon@localhost) by alpo.whistle.com (8.8.5/8.8.5) id IAA04945; Tue, 9 Jun 1998 08:54:43 -0700 (PDT) Received: from current1.whistle.com(207.76.205.22) via SMTP by alpo.whistle.com, id smtpd004941; Tue Jun 9 15:54:34 1998 Date: Tue, 9 Jun 1998 08:54:32 -0700 (PDT) From: Julian Elischer To: Luigi Rizzo cc: Amancio Hasty , sos@FreeBSD.ORG, eivind@yes.no, jkh@time.cdrom.com, current@FreeBSD.ORG Subject: Re: Switching sound drivers (was Re: cvs commit: src/sys/i386/isa/snd In-Reply-To: <199806090159.DAA17257@labinfo.iet.unipi.it> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG I have only one requirement.. All the audio ports should work. presently many do not with -current. (at least I can't get them to work) julian On Tue, 9 Jun 1998, Luigi Rizzo wrote: > > > so where are your questions :) > > > > He is wondering if you have bothered to read the old sound driver > > i probably did long ago but don't would prefer to read/hear a high-level > specification of what the code should do. The things i have read so far > have left me a little bit confused, e.g. at first i thought that you > could fill the buffer and let it play it forever, but some docs on the > oss site seem to suggest that samples are cleared after having been > played (to mask/avoid "looping" problems). > > > code, if you have a sample program to test your dma code and if it > > there was a sample program on the wss site, yes, but the goal is to run > real apps and those may differ from the sample > > > is fully compatible with the old sound driver in -current. > > at the moment it is not in the sense that you cannot pass sync. > information around. Thinking more about it, probably only one ioctl > (TRIGGER or so ?) is missing -- because you can already mmap the > buffers and fetch the DMA pointers as required. > > 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/ > _____________________________|______________________________________ > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-current" in the body of the message > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message