MPR Serial Preloader (MPRQI)

USB ID 06cd:011b · Keyspan

VendorKeyspan
Vendor ID06cd
Device ID011b
Windows hardware IDUSB\VID_06CD&PID_011B
Linux modaliasusb:v06CDp011B
Linux driverkeyspan

Frequently asked questions

Which device has USB ID 06cd:011b?

USB ID 06cd:011b is “MPR Serial Preloader (MPRQI)” made by Keyspan (vendor ID 06cd, device ID 011b).

Which Linux driver supports MPR Serial Preloader (MPRQI)?

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

How do I check whether MPR Serial Preloader (MPRQI) is in my computer?

On Linux, lsusb -d 06cd:011b shows the device if it is present. On Windows, open Device Manager, then Properties → Details → Hardware Ids; it appears as USB\VID_06CD&PID_011B.

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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