prf::hal::usb::NcmEthDeviceAdapter class final

#include <hal/usb/ncm_eth_device_adapter.hpp>

Ethernet-device adapter over TinyUSB NCM backend.

The adapter exposes USB NCM as a generic Ethernet-like L2 device for net::eth::EthNetifRuntime.

Base classes

class prf::net::eth::IEthernetDevice

Abstraction of Ethernet-capable L2 device used by lwIP netif runtime.

Constructors, destructors, conversion operators

NcmEthDeviceAdapter(prf::usb::ncm::INcmDevice& device) explicit

Wraps one TinyUSB NCM device instance as generic Ethernet backend.

Public functions

auto dequeue_rx_frame(uint8_t* out, size_t out_capacity, size_t* out_size) -> bool override

Dequeues one Ethernet frame received from USB host.

auto enqueue_tx_frame(const uint8_t* frame, size_t frame_size) -> bool override

Enqueues one Ethernet frame for USB NCM transmission.

auto init() -> bool override

Initializes TinyUSB NCM backend and snapshots local lwIP MAC identity.

auto link_up() const -> bool override

Returns host-link state as reported by TinyUSB NCM backend.

auto mac_address() const -> const uint8_t* override

Returns local lwIP MAC address used on PacketRF side.

auto mtu_bytes() const -> size_t override

Returns maximum Ethernet frame bytes without FCS (contract value 1514).

auto ready() const -> bool override

Returns true when TinyUSB network function is fully operational.

void service() override

Services USB stack and RX/TX queues.

void set_rx_wakeup_context(TaskHandle_t task_handle) override

USB backend does not use task wake notifications.