Willcom WSIM

USB ID 11f6:2001 · Prolific

VendorProlific
Vendor ID11f6
Device ID2001
Windows hardware IDUSB\VID_11F6&PID_2001
Linux modaliasusb:v11F6p2001
Linux driverpl2303

Frequently asked questions

Which device has USB ID 11f6:2001?

USB ID 11f6:2001 is “Willcom WSIM” made by Prolific (vendor ID 11f6, device ID 2001).

Which Linux driver supports Willcom WSIM?

In Linux kernel 6.12 the device is bound to the driver pl2303 (source under drivers/usb/serial). The driver is normally loaded automatically when the device is detected.

How do I check whether Willcom WSIM is in my computer?

On Linux, lsusb -d 11f6:2001 shows the device if it is present. On Windows, open Device Manager, then Properties → Details → Hardware Ids; it appears as USB\VID_11F6&PID_2001.

How do I see which driver is currently in use?

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