Usb Vid-214b Amp-pid-7250 Amp-rev-0100 Jun 2026

USB hub only recognised intermittently - Raspberry Pi Forums

The hardware ID points to a specific USB controller chip manufactured by Huasheng Electronics / Ameco Technologies . This hardware ID typically belongs to mass-market USB 2.0 Hubs , external multi-port splitters, or USB expansion microcontrollers integrated into keyboards, mice, and low-cost audio interfaces.

All of this identification is made possible by a volunteer‑run project called the ( usb-ids.gowdy.us ), which maintains the usb.ids file used by Linux, Windows, and other operating systems to translate numeric VID/PID codes into human‑readable names.

Practical troubleshooting checklist

Many users encounter this specific Hardware ID in their system logs when it starts behaving erratically (e.g., constantly waking a laptop from sleep or spiking CPU usage with "interrupts").

Single Board Computers like the Raspberry Pi 4 running Linux kernel modifications are vulnerable to timing mismatches with the HS8836A chip during the initial boot handshake.

Specifies the precise product silicon architecture or controller stepping chip. usb vid-214b amp-pid-7250 amp-rev-0100

Locate the device, right-click it, and select . Choose Browse my computer for drivers .

In most cases, this hardware “just works.” But when it doesn’t, you now know exactly which chip you’re dealing with, where to find drivers (spoiler: you usually don’t need any), and how to work around its most common limitations.

: This identifies the manufacturer as Huasheng Electronics . USB hub only recognised intermittently - Raspberry Pi

Linux users will be happy to know that this device requires . The kernel has included native support for USB hubs since version 2.6.0 , and the generic USB hub driver ( drivers/usb/core/hub.c ) handles it seamlessly.Most distributions detect the device instantly—you can verify it with the command:

Every USB device uses specific identifiers so the operating system knows which driver to load. The string breakdown includes:

You almost never need to download a separate driver from the manufacturer. However, if you’re using a specific device like the AIMOS AM‑UK404 that has extra switching logic, check the manufacturer’s website for any optional utility software. Locate the device, right-click it, and select