alloc_trdev - Register token ring device
struct net_device * alloc_trdev (int sizeof_priv);
sizeof_priv Size of additional driver-private structure to be allocated for this token ring device
Fill in the fields of the device structure with token ring-generic values. Constructs a new net device, complete with a private data area of size sizeof_priv. A 32-byte (not bit) alignment is enforced for this private data area.