When using a USB drive, if you receive an error that says— Code 39, Windows cannot load the device driver, this post will help you resolve the problem. The error ...

My Yoga 2 Pro running Windows 8.1 has given me issues with every external msata enclosure I've used. As I understand it, external msata enclosures have 2 controllers in them, separate 3.0 and 2.0 to ...

This post lists the possible solutions to fix the Unknown USB Device, the Device Failed Enumeration error on Windows 11/10. When you connect your USB device to the ...

This document is an application note describing use of the USB peripheral communications device class driver (PCDC) with the USB basic firmware of Renesas USB MCU and USB ASSP.The program described ...

There have been reports from Windows users getting a pop up error message with the exact message such as “USB device not recognized: The last USB device you ...

You have removed or added a new USB device to your office workstation and now an "Unknown USB Device" error is appearing. Device drivers supply the core software that ...

I have an old Toshiba laptop with a USB slot and Windows95 OSR2 (or it may be Win95B, I'm not certain) installed. I downloaded and installed the USB drivers for it, it detects the slot. However, when ...

This highly integrated USB device controller contains USB, serial and parallel protocol engines, eliminating any requirement for USB specific firmware development. The device supports IO interface ...

The Linux USB subsystem has grown from supporting only two different types of devices in the 2.2.7 kernel (mice and keyboards), to over 20 different types of devices in the 2.4 kernel. Linux currently ...

In my last column [see LJ December 2002], we covered the serial layer in the 2.5 (hopefully soon to be 2.6) kernel tree. We mentioned in passing that a USB-to-serial driver layer in the kernel helps ...