WX_FLAG_PTP_PPS_ENABLED
if (!test_bit(WX_FLAG_PTP_PPS_ENABLED, wx->flags)) {
set_bit(WX_FLAG_PTP_PPS_ENABLED, wx->flags);
clear_bit(WX_FLAG_PTP_PPS_ENABLED, wx->flags);
clear_bit(WX_FLAG_PTP_PPS_ENABLED, wx->flags);