gmux_read8
if (gmux_read8(gmux_data, GMUX_PORT_SWITCH_DDC) == 1)
if (gmux_read8(gmux_data, GMUX_PORT_SWITCH_DISPLAY) & 1)
if (gmux_read8(gmux_data, GMUX_PORT_SWITCH_EXTERNAL) == 2)
return gmux_read8(gmux_data, GMUX_PORT_INTERRUPT_STATUS);
ver_major = gmux_read8(gmux_data, GMUX_PORT_VERSION_MAJOR);
ver_minor = gmux_read8(gmux_data, GMUX_PORT_VERSION_MINOR);
ver_release = gmux_read8(gmux_data, GMUX_PORT_VERSION_RELEASE);