currently writing a tutorial on udev and i'm drawing a blank on something that should be simple -- what variation of udevadm can i use to print just the KERNEL and SUBSYSTEM values corresponding to a device?
here's the tutorial: http://www.crashcourse.ca/wiki/index.php/Udev it's still *very* incomplete but, partway down, you can see how to do an attribute walk on (in my case, using the example of a usb-serial cable) /dev/ttyUSB0: $ udevadm info -a -p $(udevadm info -q path -n /dev/ttyUSB0) that command generates a pile of output, and what i care about is at the very beginning: looking at device '/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.4/2-1.4:1.0/ttyUSB0/tty/ttyUSB0': KERNEL=="ttyUSB0" SUBSYSTEM=="tty" DRIVER=="" all i want are the values of KERNEL and SUBSYSTEM since it's those values that are used by the rules file that's eventually consulted. so for the sake of brevity, i want to figure out what command and options will print just that, and i just can't find it. am i missing something obvious? rday -- ======================================================================== Robert P. J. Day Ottawa, Ontario, CANADA http://crashcourse.ca Twitter: http://twitter.com/rpjday LinkedIn: http://ca.linkedin.com/in/rpjday ======================================================================== _______________________________________________ Linux mailing list Linux@lists.oclug.on.ca http://oclug.on.ca/mailman/listinfo/linux
