Method freeBus

src/platforms/esp/32/drivers/spi/spi_peripheral_esp.cpp.hpp:227–249

}

bool SpiPeripheralESPImpl::freeBus() FL_NOEXCEPT {
    if (!mBusInitialized) {
        FL_WARN("SpiPeripheralESP: Bus not initialized");
        return false;
    }

    if (mDeviceAdded) {
        FL_WARN("SpiPeripheralESP: Cannot free bus - device still attached");
        return false;
    }

    // Free bus resources (delegate to ESP-IDF)
    esp_err_t err = ::spi_bus_free(mHost);
    if (err != ESP_OK) {
        FL_WARN("SpiPeripheralESP: Failed to free bus: " << err);
        return false;
    }

    mBusInitialized = false;
    FL_DBG("SpiPeripheralESP: Bus freed");

    return true;
}

bool SpiPeripheralESPImpl::isInitialized() const FL_NOEXCEPT {
    return mBusInitialized && mDeviceAdded;