The QCOMM Diagnostics Port FFFE is a driver related to Qualcomm-based devices, specifically for smartphones or other devices using Qualcomm chipsets. This driver is commonly associated with USB diagnostic functionality, which allows communication between a Qualcomm-powered device (like a smartphone) and a computer, typically for purposes like debugging, device management, firmware updates, and other diagnostic functions.

The FFFE designation in the driver name refers to a special identifier for the diagnostics port on Qualcomm-based devices, often used during the development or maintenance of devices running Qualcomm processors.