Date: Fri, 3 Jan 2003 15:27:05 -0500 (EST) From: Andrew Gallatin <gallatin@cs.duke.edu> To: Terry Lambert <tlambert2@mindspring.com> Cc: freebsd-alpha@FreeBSD.ORG Subject: Re: Sound frustration. Message-ID: <15893.61977.617126.551476@grasshopper.cs.duke.edu> In-Reply-To: <3E15EECA.4E2BFF2E@mindspring.com> References: <3E150F12.DEBB976E@mindspring.com> <20030103012017.K6469-100000@view.scoundrelz.net> <20030103114318.E87589@freebie.xs4all.nl> <15893.38849.156467.179518@grasshopper.cs.duke.edu> <3E15E60A.DF3693CF@mindspring.com> <15893.59458.156749.895113@grasshopper.cs.duke.edu> <3E15EECA.4E2BFF2E@mindspring.com>
next in thread | previous in thread | raw e-mail | index | archive | help
Terry Lambert writes: > Andrew Gallatin wrote: > > Terry Lambert writes: > > > Andrew Gallatin wrote: > > > > isab0@pci0:8:0: class=0x000000 card=0x00000000 chip=0x04848086 rev=0x43 hdr=0x00 > > > > vendor = 'Intel Corporation' > > > > device = '82378ZB/IB,82379AB PCI to ISA Bridge, System I/O' > > > > class = old > > > > subclass = non-VGA display device > > > > > > What chip is implementing your keyboard controller? > > > > This one, more or less. Its hung off the ISA bridge. > > On the one hand, this is annoying, because it means that the board > has no sound chip built into it as part of the multi-I/O chip, > which shoots me in the foot. 8-(. On the other hand, it's an > Intel bridge chip, which might give creedence to the idea that > it's limited to 2 DMA channel negotiations, and barfs if you > try to stick another PCI card in it that does DMA, which keeps > my other foot safe. 8-). Huh? Its an alpha.. PCI dma is handled separately, by the core-logic chipset (21174 pyxis). There are no DMA channels for PCI devices. However, there are some cards which the SRM fails to setup properly. For example, some ATA cards get IO ports which are higher than they expect and barf. Perhaps this is what's happening to the happless user who started this thread. Drew To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-alpha" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?15893.61977.617126.551476>