B_HIGH_ACTIVE_POLARITY
= descriptor.polarity == B_HIGH_ACTIVE_POLARITY ? 0 : 1;
= descriptor.polarity == B_HIGH_ACTIVE_POLARITY ? 0 : 1;
polarity(B_HIGH_ACTIVE_POLARITY),
descriptor.polarity == B_HIGH_ACTIVE_POLARITY ? activeHighString
? B_HIGH_ACTIVE_POLARITY : B_LOW_ACTIVE_POLARITY;
? B_HIGH_ACTIVE_POLARITY : B_LOW_ACTIVE_POLARITY;
config = B_HIGH_ACTIVE_POLARITY;