Ryan Malloy fc12d6a2d7 Add cp210x-mcp FastMCP server for device customization

MCP Tools:
- list_devices: List connected CP210x devices
- get_device_info: Full device details (part number, VID/PID, strings)
- set_product_string: Change USB device name (max 126 chars)
- set_manufacturer_string: Change manufacturer (max 45 chars)
- set_serial_number: Change serial number (max 63 chars)
- set_max_power: Set USB power draw (0-500mA)
- set_self_powered: Toggle self/bus powered
- reset_device: USB re-enumeration
- lock_device: PERMANENTLY lock configuration

Requires libcp210xmanufacturing.so (see aur/cp210xmanufacturing)

Usage:
  claude mcp add cp210x -- uvx cp210x-mcp

2026-01-30 10:37:08 -07:00

2.0 KiB

Raw Blame History

CP210x MCP Server

MCP server for customizing Silicon Labs CP210x USB-UART bridge devices. Allows reading and writing USB descriptor strings, power configuration, and more.

Features

List connected CP210x devices
Read/write USB product string (device name)
Read/write manufacturer string
Read/write serial number
Configure max power draw
Set self-powered/bus-powered mode
Reset device (USB re-enumeration)
Lock device (permanent - prevents further changes)

Requirements

Linux x86_64
libcp210xmanufacturing.so - Install via AUR package or build from source

Installation

Install the library (Arch Linux)

cd aur/cp210xmanufacturing
makepkg -si

Or build from source:

cd AN721SW/Linux/LibrarySourcePackages/cp210xmanufacturing
make LIB_ARCH=64
sudo make install
sudo ldconfig

Install the MCP server

# With uv (recommended)
uv tool install .

# Or with pip
pip install .

Usage

Add to Claude Code

claude mcp add cp210x -- uvx cp210x-mcp

Available Tools

Tool	Description
`list_devices`	List connected CP210x devices
`get_device_info`	Get detailed device information
`set_product_string`	Set USB product string (device name)
`set_manufacturer_string`	Set USB manufacturer string
`set_serial_number`	Set USB serial number
`set_max_power`	Set max USB power draw (mA)
`set_self_powered`	Set self-powered vs bus-powered
`reset_device`	Reset device (USB re-enumeration)
`lock_device`	PERMANENTLY lock device config

Example

# In Claude Code conversation:
> What CP210x devices are connected?
> Change the product name of device 0 to "My Custom Device"

Relationship to mcserial

This MCP server complements mcserial which handles serial port communication. Use this server for device customization (changing USB descriptors) and mcserial for serial communication (sending/receiving data over UART).

License

MIT

2.0 KiB Raw Blame History