From owner-freebsd-multimedia@FreeBSD.ORG Tue Jan 17 15:39:24 2006 Return-Path: X-Original-To: freebsd-multimedia@freebsd.org Delivered-To: freebsd-multimedia@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 0BB9116A41F for ; Tue, 17 Jan 2006 15:39:24 +0000 (GMT) (envelope-from arg-bsd@arg.me.uk) Received: from arg.me.uk (arg1.demon.co.uk [62.49.12.213]) by mx1.FreeBSD.org (Postfix) with ESMTP id 8C98E43D49 for ; Tue, 17 Jan 2006 15:39:22 +0000 (GMT) (envelope-from arg-bsd@arg.me.uk) Received: by arg.me.uk (Postfix, from userid 1002) id B97DA9B02; Tue, 17 Jan 2006 15:39:21 +0000 (GMT) Received: from localhost (localhost [127.0.0.1]) by arg.me.uk (Postfix) with ESMTP id B51875D12; Tue, 17 Jan 2006 15:39:21 +0000 (GMT) Date: Tue, 17 Jan 2006 15:39:21 +0000 (GMT) From: Andrew Gordon X-X-Sender: freebsd@server.arg.sj.co.uk To: Alexander Leidinger In-Reply-To: <20060117112644.acwpsuc33ls08404@netchild.homeip.net> Message-ID: <20060117153502.V33572@server.arg.sj.co.uk> References: <43CC2600.20605@orchid.homeunix.org> <20060117112644.acwpsuc33ls08404@netchild.homeip.net> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Cc: freebsd-multimedia@freebsd.org Subject: Re: [info] PixelView PlayTV Pro PV-BT878P+ rev.9D works with bktr X-BeenThere: freebsd-multimedia@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Multimedia discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 17 Jan 2006 15:39:24 -0000 On Tue, 17 Jan 2006, Alexander Leidinger wrote: > > > none1@pci0:13:1: class=0x048000 card=0x00000000 chip=0x0878109e > > rev=0x11 hdr=0x00 > > vendor = 'Conexant (Was: Brooktree Corp)' > > device = 'Bt878/Fusion878A Video Capture (Audio Section)' > > class = multimedia > > Does someone has a datasheet for this soundchip which is usable to write a > driver? Maybe we could lure Ariff into writting a driver (perhaps by giving > a card with such a chip to him as a gift) if we get a datasheet. There isn't a separate soundchip - the sound is a second PCI function within the video capture chip (BT878). The datasheet for that certainly used to be freely available (I have a copy downloaded years ago). It looks to be sufficient to write a driver - the DMA engine etc. are identical to the one in the video section, and there is a fair amount of documentation of the audio section. However, as with the video, you need card-specific knowledge about how the various inputs are wired up to do a comprehensive job (similar to the problems with mis-labeled mixer channels on other soundcards).