On Tue, Jan 26, 2010 at 16:22, Greg KH <greg@xxxxxxxxx> wrote: > On Tue, Jan 26, 2010 at 03:36:39PM +0100, Andreas Besse wrote: >> i have a system with multiple DVB cards of the same type and want to >> specify the order of the devices /dev/dvb/adapterX. The device plugged >> into the physical PCI slot 1 on the mainboard should be assigned to >> /dev/dvb/adapter0 and the card in PCI slot 2 should be assigned to >> /dev/dvb/adapter1. We usually do not change kernel names, but create meaningful named symlinks to them. Stuff gets confused when /sys and /dev get out-of-sync. >> In the following post >> http://thread.gmane.org/gmane.linux.kernel.pci/7446/focus=7467 there >> is mentioned that the order of the devices can be specified by using >> udev rules. The order can usually only specified by unconditionally loading kernel driver modules in a defined order. This usually works fine for PCI devices, but can obviously not work if there are USB devices involved. >> But how this can be done? Which information in /sys can be used to >> determine which DVB device is connected to which specific slot? > > Did you try the latest version of udev that has the persistant rules for > the v4l devices in it and look at the symlinks that are created to see > if they solve the problem for you? Looking at it now, I think we only do video4linux, not the DVB stuff, which has its own class. But it should be possible to implement a similar model for /dev/dvb/by-id, /dev/dvb/by-path without much problems. It's just, that nobody really cared so far. Thanks, Kay -- To unsubscribe from this list: send the line "unsubscribe linux-hotplug" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
