This document describes how to create a composite USB device with an interface association descriptor for the LPC134x USB port. It also describes the functional codes used in this application. The ...

Here's the situation. All my devices used to work in harmony, until a few days ago. That was when I turned on my printer, which I hadn't used for months. Instead of it being recognised by Windows as ...

In this post, we will explain the possible solutions to fix the Unknown USB Device (Descriptor Request Failed) error. USB Device Descriptor contains information about ...

MTP (Media Transfer Protocol) is a communication protocol that is used to transfer the media and other files between two portable devices or between a computer and a smartphone. To use this ...

The difficulty of writing device drivers is one of the major barriers to the adoption of the USB. A typical embedded-device engineer who can comfortably design embedded systems all day long can get ...