taglinefilesource code
if_num3317drivers/net/ppp.cint    if_num;
if_num3325drivers/net/ppp.cif_num   = 0;
if_num3332drivers/net/ppp.cif (++if_num == max_dev)
if_num3347drivers/net/ppp.cppp->line      = if_num;
if_num3354drivers/net/ppp.cdev->base_addr = (unsigned long) if_num;
if_num3357drivers/net/ppp.csprintf (dev->name, "ppp%d", if_num);