kmp-ble-dfu/com.atruedev.kmpble.dfu.transport/DfuTransport

DfuTransport

interface DfuTransport : AutoCloseable

Abstraction over the BLE link used to send DFU commands and data.

Built-in implementations:

  • GattDfuTransport - uses DFU Control Point and DFU Packet characteristics

  • L2capDfuTransport - L2CAP CoC channel for higher throughput (commands via GATT)

  • SmpTransport - single SMP characteristic with response reassembly (MCUboot)

  • EspOtaTransport - dual-characteristic OTA control/data (Espressif ESP-IDF)

Implement this interface to support custom transport mechanisms.

See also

Inheritors

Properties

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abstract val mtu: Int

Maximum payload size per write, in bytes.

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abstract val notifications: Flow<ByteArray>

Incoming notifications from the DFU Control Point characteristic.

Functions

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abstract override fun close()

Release transport resources synchronously.

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abstract suspend fun sendCommand(data: ByteArray): ByteArray

Write a command to the DFU Control Point and wait for the response notification.

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abstract suspend fun sendData(data: ByteArray)

Write firmware data to the peripheral.

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