Module device 

Device probe and port open helpers. Device discovery and port enumeration.

Use describe_device after the transport is ready (interfaces readable) to learn how many serial ports the chip exposes, then open_port with a zero-based index.

Structs

DeviceDescriptor

USB device identify + probed driver and ports.

PortDescriptor

One logical serial port exposed by a USB composite / multi-interface device.

Functions

describe_device

Probe VID/PID + interface layout without opening a driver session.

open_port

Open port port_index (0 for single-port chips like CH340).