From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Hinds Subject: Re: [linux-audio-user] snd-hdsp+cardbus+M6807 notebook=distortion -- FIXED! Date: Mon, 12 Apr 2004 02:08:17 -0700 Sender: linux-kernel-owner@vger.kernel.org Message-ID: <20040412090817.GA3158@sonic.net> References: <200404120145.22679.daniel.ritz@gmx.ch> <20040412013949.NJOP1634.smtp3.fuse.net@64BitBadass> <20040412082801.A3972@flint.arm.linux.org.uk> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <20040412082801.A3972@flint.arm.linux.org.uk> To: Ivica Ico Bukvic , daniel.ritz@gmx.ch, 'Tim Blechmann' , 'Thomas Charbonnel' , ccheney@debian.org, linux-pcmcia@lists.infradead.org, alsa-devel@lists.sourceforge.net, linux-kernel@vger.kernel.org List-Id: alsa-devel@alsa-project.org On Mon, Apr 12, 2004 at 08:28:01AM +0100, Russell King wrote: > > > 3) FOR FURTHER INVESTIGATION: Does linux hdsp driver force the f0 > > value upon the 0x81 register or is it that in Linux one simply > > cannot select d0 value for whatever reason > > I suspect it may be caused by using a byte access to a longword-sized > register. 0x81 is supposed to be accessed via: > > setpci -s a.0 0x80.l > > which of course means its bits 8 to 15. I don't think so; I'm not sure what the PCI spec has to say about it, but I have not had problems doing byte reads/writes for longer PCI configuration registers. Bit 9 of the sysctl register for the TI 1410 is "socket activity"; it is read only and is cleared after each read. The key change is setting bit 14 (enable upstream burst reads). Regarding the register at 0xc9, I don't think that is defined in any TI bridge data sheet; it is in a "reserved" range. -- Dave