Method registerDevice

src/platforms/shared/spi_manager.cpp.hpp:49–82

}

SPIBusHandle SPIBusManager::registerDevice(u8 clock_pin, u8 data_pin, u32 requested_speed_hz, void* controller) FL_NOEXCEPT {
    if (!controller) {
        FL_WARN("SPIBusManager: nullptr controller pointer");
        return SPIBusHandle();
    }

    // Find or create bus for this clock pin
    SPIBusInfo* bus = getOrCreateBus(clock_pin);
    if (!bus) {
        FL_WARN_FMT("SPIBusManager: Too many different clock pins (max " << MAX_BUSES << ")");
        return SPIBusHandle();
    }

    // Check if we can add another device to this bus
    if (bus->num_devices >= 16) {
        FL_WARN_FMT("SPIBusManager: Too many devices on clock pin " << clock_pin << " (max 16)");
        return SPIBusHandle();
    }

    // Add device to bus
    u8 device_idx = bus->num_devices;
    bus->devices[device_idx].clock_pin = clock_pin;
    bus->devices[device_idx].data_pin = data_pin;
    bus->devices[device_idx].controller = controller;
    bus->devices[device_idx].lane_id = device_idx;  // Tentative assignment
    bus->devices[device_idx].requested_speed_hz = requested_speed_hz;
    bus->devices[device_idx].is_enabled = true;  // Enabled by default
    bus->devices[device_idx].is_allocated = true;  // Mark as allocated
    bus->num_devices++;

    // Return handle
    u8 bus_id = static_cast<u8>(bus - mBuses);
    return SPIBusHandle(bus_id, device_idx);
}

bool SPIBusManager::unregisterDevice(SPIBusHandle handle) FL_NOEXCEPT {
    if (!handle.is_valid || handle.bus_id >= mNumBuses) {