Date: Tue, 17 Jan 2006 15:39:21 +0000 (GMT) From: Andrew Gordon <arg-bsd@arg.me.uk> To: Alexander Leidinger <Alexander@Leidinger.net> Cc: freebsd-multimedia@freebsd.org Subject: Re: [info] PixelView PlayTV Pro PV-BT878P+ rev.9D works with bktr Message-ID: <20060117153502.V33572@server.arg.sj.co.uk> In-Reply-To: <20060117112644.acwpsuc33ls08404@netchild.homeip.net> References: <43CC2600.20605@orchid.homeunix.org> <20060117112644.acwpsuc33ls08404@netchild.homeip.net>
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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).
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