driver_byte
err->host_byte, err->driver_byte,
&inject->host_byte, &inject->driver_byte,
unsigned char driver_byte;
result = err->status_byte | err->host_byte << 16 | err->driver_byte << 24;
opcode, err.host_byte, err.driver_byte,
srp->header.driver_status = driver_byte(result);
if (driver_byte(result) != 0