Lou Otway wrote, On 10/30/2009 10:40 AM: > Hi, > > I'm trying to find a way to be able to uniquely identify each device in > a PC and was hoping to use either serial or MAC for this purpose. > > I've looked at the documentation but can't find a generic way to read > back serial numbers or MAC addresses from V4L devices? Does such a > function exist? Hi Lou, I'm using the mac address to identify each device and to do so I created this script which use dvbnet to create network interface from the dvb card. a=<your adapter> n=<your net device> for ex. /dev/dvb/adapter1/net0 => a=1, n=0 # get mac address iface=$(sudo /usr/bin/dvbnet -a $a -n $n -p 0 | awk '/device/ {print $3}') sleep 1 mac_address=$(/sbin/ifconfig $iface | awk '/HWaddr/ {print $5}' | tr -d ':' | tr A-Z a-z) num=$(sudo /usr/bin/dvbnet -a $a -n $n -l | grep 'Found device ' | awk '{print $3}' | tr -d ':') sleep 1 sudo /usr/bin/dvbnet -a $a -n $n -d $num 1> /dev/null AFAIK, mac address are known only from the kernel and are not directly exposed to the userland. I you manage to do something "cleaner", let me know :) Regards pierre gr. > > Thanks, > > Lou -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html