Let’s dissect the keyword into its functional parts:
| Component | Meaning | Typical Value |
|-----------|---------|----------------|
| hid | Human Interface Device – a class of USB devices (keyboards, mice, touchpads, game controllers, barcode scanners) | Standard USB class |
| vid-1ea7 | Vendor ID (VID) = 1ea7 (hexadecimal). Assigned by USB-IF to a specific manufacturer. | 1ea7 belongs to SHENZHEN E-YOZZ ELECTRONICS CO., LTD or related OEM. |
| pid-0066 | Product ID (PID) = 0066 (hex). Each product model from that vendor gets a unique PID. | 0066 often points to a gamepad, controller, or multimedia keypad. |
| rev-0200 | Revision number (firmware/hardware version) = 2.00 | Indicates firmware revision 2.0. |
| mi-00 | Multiple Interface (MI) number = 00 | Means this is the first interface (0) of a composite USB device. | hid vid-1ea7 amp-pid-0066 amp-rev-0200 amp-mi-00
So, the full string tells us: A Human Interface Device from vendor “1ea7” (Shenzhen E-Yozz), product “0066”, firmware revision 2.00, interface 0. Let’s dissect the keyword into its functional parts:
If you see amp;, the hardware ID is corrupted in the registry only if the string was manually entered — but hardware IDs are read from the device’s firmware, so the corruption is in your documentation, not the system. |
| pid-0066 | Product ID (PID) = 0066 (hex)
Follow these steps in order.
Unplug all USB peripherals except keyboard/mouse. Plug in the suspected controller. Open Device Manager → Human Interface Devices → look for “HID-compliant game controller”. Right-click → Properties → Details → Hardware Ids. If you see HID\VID_1EA7&PID_0066&REV_0200&MI_00, you’ve identified it.