If Windows logs a Device Descriptor Request Failed warning alongside a in the Device Manager hierarchy, a signaling error has corrupted communication between the chip and the host root complex.
If you can tell me you are using, I can help you find the exact manufacturer support page for this driver. Share public link
If you still need assistance, post in the r/techsupport subreddit with the exact text: "Device Manager shows USB\VID_214B&PID_7250&REV_0100 – tried forced driver, no luck." Include your Windows version and the physical device model.
The PID_7250 architecture generally expects a stable 100mA to 200mA power threshold over a high-speed USB 2.0 bus. Connecting the device to unpowered front-chassis ports, structural monitor pass-throughs, or cheap unpowered external multi-hubs causes the voltage to drop below operational limits, degrading the signal integrity of the firmware handshake. 3. Firmware Corruption (Brick State)
: In Device Manager, right-click the "Generic USB Hub" with this ID, select Uninstall Device , and then restart your computer to force Windows to reinstall the standard driver. usb vid-214b amp-pid-7250 amp-rev-0100
Many users report this issue on HP Probook or Pavilion laptops, where an internal component—likely related to audio or USB expansion—is not recognized after a clean install of Windows.
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:
The HS8836A chip is a high-speed (480Mbps) USB 2.0 hub controller designed for low-power consumption and small footprints. It is a "Generic USB Hub," meaning it does not require specialized third-party drivers and should work out-of-the-box using the standard Microsoft Generic USB Hub driver on Windows or native drivers in Linux and macOS. Common Implementations This hardware often appears as:
: Fully compliant with USB 2.0 specifications, offering backward compatibility with USB 1.1 legacy peripherals. If Windows logs a Device Descriptor Request Failed
Dual-purpose combo adapters (e.g., a single USB dongle hosting an Ethernet port alongside 3 legacy USB ports). Technical Specifications & Architecture
Typical device categories with similar IDs
Look under the generic manufacturer categories for or USB Composite Device .
Every USB device broadcasts a unique hardware string to the host operating system during data enumeration. This specific string breaks down into three core technical elements: The PID_7250 architecture generally expects a stable 100mA
Recognized by the kernel's usbcore as a standard hub, appearing in lsusb as "Huasheng Electronics USB2.0 HUB". Troubleshooting Connectivity Issues
Before diving into fixes, it is crucial to understand what this hardware signature represents. Vendor ID (VID) 214B: Identifies the manufacturer as Huayi Electronics Co., Ltd. (or associated generic Chinese manufacturers like Product ID (PID) 7250: Identifies the specific model, usually a USB 2.0 Hub Multi-Slot Card Reader Controller Revision (REV) 0100:
Are you experiencing or slow speeds with this specific device? Huasheng Electronics — USB Vendor 214B - DeviceHunt
After applying Method 1 or Method 2 above, 95% of users will see their device transform into a working CD-ROM or disk drive. For the remaining 5%, the REV-0100 hardware has likely reached the end of its functional life.
The USB VID-214B&PID-7250&REV-0100 is used in various ways: