Vendor class

SEGGER emUSB-Host

Overview

The Vendor Class allows to enumerate and communicate with any USB device. Typically it is used to connect devices running a custom or proprietary protocol. For example our LAN component uses the Vendor Class API to connect with certain Ethernet-over-USB adapters which use a custom protocol.

jlink bulk — The Vendor Class is primarily used to interface devices running a non-standard USB protocol.

Key features

Communicate with any device
Ideal for custom protocols
Supports bulk, interrupt, control and isochronous transfers.
High performance, small overhead
Small memory footprint in RAM and ROM

Sample Applications emUSB-Host Vendor Class

J-Link PLUS

SEGGER Debug Probe J-Link

thermostat

Temperature Logger

copy protectio dongle

Software Protection Dongle

gamepad

Gamepad

Requirements

Components required to use emUSB-Host Vendor Class:

emUSB-Host Vendor Class (included in emUSB-Host PRO package)
emUSB-Host core (included in emUSB-Host PRO package)
emUSB-Host target driver (One driver is included in emUSB-Host PRO package)
Real-time operating system (embOS or other)

Simple user API

Notification for newly enumerated devices
Read/Write routines for bulk, interrupt, control and isochronous endpoints.
Synchronous and asynchronous operations