the request type (see below; 'type'), a 64 bit handle ('handle'), a 64
bit data offset ('from'), and a 32 bit length ('len'). In case of a
write request, the header is immediately followed by 'len' bytes of
the request type (see below; 'type'), a 64 bit handle ('handle'), a 64
bit data offset ('from'), and a 32 bit length ('len'). In case of a
write request, the header is immediately followed by 'len' bytes of