MCU

USB ID 04d9:e002 · Holtek Semiconductor, Inc.

VendorHoltek Semiconductor, Inc.
Vendor ID04d9
Device IDe002
Windows hardware IDUSB\VID_04D9&PID_E002
Linux modaliasusb:v04D9pE002
Linux driverno driver with exact ID

Frequently asked questions

Which device has USB ID 04d9:e002?

USB ID 04d9:e002 is “MCU” made by Holtek Semiconductor, Inc. (vendor ID 04d9, device ID e002).

Which Linux driver supports MCU?

Linux kernel 6.12 lists no driver for this exact ID. Most USB devices (keyboards, mice, storage, webcams, audio) still work through generic class drivers such as usbhid, usb-storage, uvcvideo or snd-usb-audio. Overview of device classes and their drivers

How do I check whether MCU is in my computer?

On Linux, lsusb -d 04d9:e002 shows the device if it is present. On Windows, open Device Manager, then Properties → Details → Hardware Ids; it appears as USB\VID_04D9&PID_E002.

How do I see which driver is currently in use?

lsusb -t prints the device tree with the bound driver (Driver=…) for each interface.

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