From owner-freebsd-stable Fri Jun 22 9:17:47 2001 Delivered-To: freebsd-stable@freebsd.org Received: from vilnya.demon.co.uk (vilnya.demon.co.uk [158.152.19.238]) by hub.freebsd.org (Postfix) with ESMTP id A13B337B406 for ; Fri, 22 Jun 2001 09:17:38 -0700 (PDT) (envelope-from gandalf@vilnya.demon.co.uk) Received: from haveblue (haveblue.rings [10.2.4.5]) by vilnya.demon.co.uk (Postfix) with SMTP id 250E0D96E; Fri, 22 Jun 2001 17:17:36 +0100 (BST) Message-ID: <002601c0fb37$1c908420$0504020a@haveblue> From: "Cameron Grant" To: "Christopher Hall" , References: <200106210726.f5L7Q4o84210@x4.tucheng.generalresources.com> Subject: Re: AC97 sound codecs Date: Fri, 22 Jun 2001 17:19:28 +0100 MIME-Version: 1.0 Content-Type: text/plain; charset="Windows-1252" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2462.0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2462.0000 Sender: owner-freebsd-stable@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG > Is the AC97 sound system supported on on -stable. yes. > 1. i815E/Celeron motherboard, AD1885 codec > 2. SiS 730S/Duron Motherboard, ALC200 codec > I found that in sys/dev/sound/pcm/ac97.c has a list of AC97 codecs > and should print a messge for the codec. > > I just get a "unknown card" message from boot -v > The BIOS listed same ID numbers as "Multmedia Device" > There were no ac97 related messages in the boot -v listing. > > The sound driver file for -current shows both these codecs (and others) you misunderstand the purpose of ac97. ac97 provides a standard interface between a digital audio controller and the analogue world. it does not provide any direct interface to the rest of the computer. therefore, while the audio controller<->codec interface can be supported with generalised code, it is reliant on having a driver for the audio controller. an i810/i815 driver will be committed once my i815 motherboard arrives. no driver is currently planned for sis630/730 or ali motherboards due to lack of hardware and lack of funds. the audio controller on these boards is very similar to the trident 4dwave. no driver is planned for the via8233 for the same reason. i will accept driver submissions for any controller not currently supported, or donations of any sound related hardware including motherboards with onboard sound, soundcards, internal/external midi units, etc. i'm especially interested in hardware that we don't currently support although working hardware is always useful for regression testing. however, if you have hardware which is not supported but information exists to allow its support, and you are not prepared to contribute a driver or donate equivalent hardware so that i can write a driver without having to purchase it at my own personal expense then please a) check list archives of freebsd-multimedia to ensure that i know said hardware exists, and b) be patient and hope that someone else is more generous than you or that i find the money to invest in it myself. this is not just directed at you, mr hall. it applies to everyone that i have observed asking about the same hardware time and time again. and lest some of you think otherwise, digital audio support has had exactly one person behind it for almost two years- me. i now have orion and greid assisting me, but we still have very limited resources. we're not getting paid for this, and we do have other things to do so our time is far from limitless. -cg To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message