enableDrivers()

template<Bus... Buses>

void fl::enableDrivers ( )

inline

Register the named drivers with ChannelManager for runtime selection.

Each named bus's BusTraits<B>::registerWithManager() is invoked, which:

1. Lazily constructs the driver singleton (links its translation unit).
2. Calls ChannelManager::addDriver(priority, instance) so the runtime manager can route channels to it.

Pre-condition: the per-driver bus_traits.h for each B named here must be reachable from the calling translation unit. Including the per-platform driver headers brings the relevant specializations in. Naming a Bus whose BusTraits<B> specialization is not visible produces a clear "implicit instantiation of undefined template" diagnostic.

#include "platforms/esp/32/drivers/rmt/rmt_5/bus_traits.h"
#include "platforms/esp/32/drivers/parlio/bus_traits.h"
fl::enableDriver<fl::Bus::FLEX_IO, 0>();  // PARLIO/LCD_CAM/etc. slot

Definition at line 81 of file bus_traits.h.

                                         {
    // C++11-compatible pack expansion via array initializer trick.
    using expand = int[];
    (void)expand{0, detail::bus_register_one<Buses>()...};
}

References fl::detail::bus_register_one(), and FL_NO_EXCEPT.

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