Hi, Thanks. I see that in my system for onboard devices I get a sysfs attribute "acpi_index", which is not available for removable cards. So currently existence and non existence of this file will be sufficient to detect. Thanks. On Mon, May 2, 2016 at 10:22 PM, Mandeep Sandhu <mandeepsandhu.chd@xxxxxxxxx> wrote: >> >> If the name contains a %d format string, the first available device >> name with the given base is used; assigned numbers start at zero. >> >> On my base machine, I have 1 NIC card which is onboard, rest I can >> remove and plug. >> For the onboard card I get the interfaces as em1-4, while all the >> other cards I get names as p1p2, p3p4 etc. > > This looks like systemd's way of naming network interfaces (aka > predictable network interface names). Are you running a systemd > enabled system? > > If so, look at this systemd guide for the naming convention: > > https://www.freedesktop.org/wiki/Software/systemd/PredictableNetworkInterfaceNames/ > > HTH, > -mandeep > > >> >> Does Udev know the difference. >> >> How are these names given, definitely there must be some configuration >> which is used to distinguish on-board card vs removable. >> >> Thanks. >> >> _______________________________________________ >> Kernelnewbies mailing list >> Kernelnewbies@xxxxxxxxxxxxxxxxx >> http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies _______________________________________________ Kernelnewbies mailing list Kernelnewbies@xxxxxxxxxxxxxxxxx http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
