type 'a io = 'a Lwt.t
type buffer = Cstruct.t
type macaddr = Macaddr.t
val register : t -> (id, Mirage_net.Net.error) Stdlib.result
val write : t -> id -> size:int -> (buffer -> int) -> (unit, Mirage_net.Net.error) Stdlib.result io
Vnetif.BACKEND
type 'a io = 'a Lwt.t
type buffer = Cstruct.t
type macaddr = Macaddr.t
val register : t -> (id, Mirage_net.Net.error) Stdlib.result
val write : t -> id -> size:int -> (buffer -> int) -> (unit, Mirage_net.Net.error) Stdlib.result io