On Tue, Nov 13, 2007 at 02:23:58PM -0500, Bill Nottingham wrote: > Hans de Goede (j.w.r.degoede@xxxxxx) said: > > I'm basing my work on the i2c-tools specfile from Suse (one of the > > lm_sensors project lead works for Suse). > > > > This specfile contains in %files: > > %attr(660, root, root) %dev(c, 89, 0) /lib/udev/devices/i2c-0 > > > > This causes a /dev/i2c-0 char device to be effectively statically created. > > If I then also add the proper alias to modprobe.conf.dist, tools like > > i2cdump which need the i2c-dev kernel module loaded will automagically > > work. > > > > Is this ok / the best way todo this. Also I will be adding i2c-0 to i2c-3 > > then, as there are many cases where there is more then 1 i2c bus (some > > motherboards have 2 on the board and many graphics / tv cards have i2c > > busses). > > What are the modules that live behind that device? > > > I just thought the same problem exists for non hardware backed devices like > > loop. Then I noticed that loop.ko is loaded, removing it and then trying a > > mount -o loop will cause mount to fail because it cannot find /dev/loop#. > > > > Who / what is responsible for loop.ko getting loaded by default, wouldn't > > it be better to use a similar trick with a static /dev entry and module > > autoloading, this would probably save both boottime and memory. > > loop is created by /etc/udev/makedev.d/50-udev.nodes. The kernel now has DMI-based module autoloading, which I implemented for the dcdbas module a few weeks ago[1]. Can you do something similar? [1]http://www.mail-archive.com/mm-commits@xxxxxxxxxxxxxxx/msg28390.html -- Matt Domsch Linux Technology Strategist, Dell Office of the CTO linux.dell.com & www.dell.com/linux -- fedora-devel-list mailing list fedora-devel-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/fedora-devel-list
