Josue de Freitas wrote: > Hi people, > > I'm trying to build the scull module example from Chapter 3 of Linux > Device Drivers book and it's not working. I create a /dev/scull0 (with > fixed major number, which is also configured on the module source) but > when I stand up the module and try something like "dd if=/dev/zero > of=/dev/scull0" it gives a message "dd: /dev/scull0: No such device". > According to the book a "cat /proc/devices" should show the scull > device when the module is up but nothing about scull is there, nothing > changes on /proc/devices with or without the module loaded. > > So the main question is: dynamic module loading works perfectly on a > read-only filesystem on uClinux ? > > > If this is not the best place to this kind of question, please tell me > where I can send this doubt. ;) > > > Thanks in advance, Josue. > ------------------------------------------------------------------------ > > _______________________________________________ > uClinux-dev mailing list > [email protected] > http://mailman.uclinux.org/mailman/listinfo/uclinux-dev > This message was resent by [email protected] > To unsubscribe see: > http://mailman.uclinux.org/mailman/options/uclinux-dev Hi Josue,
I ran into the same problem with modules not working. The following post from *Harald Küthe solved the issue for me: * http://mailman.uclinux.org/pipermail/uclinux-dev/2005-August/034432.html Also regarding the read-only filesystem what we do is just create our dynamic device nodes in /tmp/ which is writable. Thanks, Lance _______________________________________________ uClinux-dev mailing list [email protected] http://mailman.uclinux.org/mailman/listinfo/uclinux-dev This message was resent by [email protected] To unsubscribe see: http://mailman.uclinux.org/mailman/options/uclinux-dev
