Question

I have a piece of USB hardware, for which I know the driver.

However, the vendor id and product id do not match the VID, PID pair registered in the driver.

Is there a way in Linux to force a driver to be associated with a known device, that do not involve kernel module recompilation to add a PID / VID pair?

Answer 1

Find the module in the sysfs tree. In this case it was in

/sys/bus/usb-serial/drivers/cp2101 

In this directory, there is a new_id file entry that can be used to dynamically add VID PID pair like this :

echo VID PID >new_id 

Here is a LWN entry about this feature