On Mar 12, 2007, at 13:15, James Olin Oden wrote: > As I understand it you can also set the kernel command line arg > 8250.nr_uarts equal to some value like 8, 16, 32, etc, without having > to rebuild your kernel (i.e. go into grub.conf and add to your kernel > line " 8250.nr_uarts=32"). I tried this, but it didn't work. I probably also need the CONFIG_SERIAL_8250_MANY_PORTS option enabled, and that probably can't be set on the kernel command line. > IIRC, what you have to do is create a udev rule so that you can cause > your serial port naming to persist the way you want. I've never > created one myself, but we have done that in my group where I work, so > the problem is familiar to me. I wrote a udev rule once (it was for setting permissions on a device), so I am somewhat familiar with this. I'll see if I can write a rule that uses better names for the serial ports. Alfred