From mboxrd@z Thu Jan 1 00:00:00 1970 From: Greg KH Date: Tue, 30 Nov 2004 23:17:04 +0000 Subject: Re: order of pci detection gives problem with sounddevices and applications Message-Id: <20041130231704.GA26424@kroah.com> List-Id: References: <1101350790.8381.12.camel@localhost.localdomain> In-Reply-To: <1101350790.8381.12.camel@localhost.localdomain> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-hotplug@vger.kernel.org On Thu, Nov 25, 2004 at 03:46:30AM +0100, Kristof Vansant wrote: > No sound because a not primary sound device is loaded and gets > device /dev/dsp1 > > Quotes from the bug reports: > > Examples: > 1) When my logitech orbit/sphere webcam is plugged on reboot, the > primary audio device is the USB Mixer, with only a microphone. That > leave me with no audio output. > > Should the modules be loaded in a specific order? The webcam being one of the lasts. > > 2) Same error happens when bttv is detected before the sound card. > > Solution?: > So, PCI ordering seems annoying. :-) Possibly an easier one: deprioritising USB > devices behind PCI devices. I had the same issue occur with my webcam USB > capture device. > > Could hotplug or udev solve this problem or should this issue be resolved on a higher level?? Yes udev can solve this. Make udev only create the /dev/dsp1 (or whatever you want) for your pci sound card, and /dev/dsbfoo for the USB device. Good luck, greg k-h ------------------------------------------------------- SF email is sponsored by - The IT Product Guide Read honest & candid reviews on hundreds of IT Products from real users. Discover which products truly live up to the hype. Start reading now. http://productguide.itmanagersjournal.com/ _______________________________________________ Linux-hotplug-devel mailing list http://linux-hotplug.sourceforge.net Linux-hotplug-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/linux-hotplug-devel