MPU401_INFO_OUTPUT
if (! (info_flags & (MPU401_INFO_INPUT | MPU401_INFO_OUTPUT)))
info_flags |= MPU401_INFO_INPUT | MPU401_INFO_OUTPUT;
out_enable = (info_flags & MPU401_INFO_OUTPUT) ? 1 : 0;
.mpu401_2_info_flags = MPU401_INFO_OUTPUT,
info_flags |= MPU401_INFO_OUTPUT;