setExclusiveDriver() [1/2]

template<fl::Bus B, fl::u8 Which = 0>

void CFastLED::setExclusiveDriver ( )

inline

Register a single driver at a priority above the platform default (compile-time TU-linking variant).

Post-#2428 the default build does NOT auto-register every driver — only the platform-default driver TU links (via the legacy clockless addLeds<>() controller's fl::SlimBridgeController registration). This template provides the opt-in path to add another driver and have it win priority dispatch.

Naming BusTraits<B>::instancePtr() in the body is the ODR-use that links the driver TU; the registration with the manager happens at kExclusivePriority (a value above any platform default).

Must be called before addLeds<> / FastLED.add() so newly- constructed channels see the override during driver resolution. Legacy clockless addLeds<>() controllers route through fl::SlimBridgeController<...>, whose driver is fixed at compile time by its DriverTraits template parameter and registered with ChannelManager in the constructor – this template does not rewrite already-constructed controllers.

Template Parameters

B	Bus identifier. The caller must have the per-driver bus_traits.h visible at the call site (which provides the BusTraits<B> specialization).

Definition at line 1644 of file FastLED.h.

                                           {
        fl::channelManager().setExclusiveDriver<B, Which>();
    }

References fl::channelManager(), FL_NO_EXCEPT, and fl::ChannelManager::setExclusiveDriver().

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