Binding a driver to a device refers to the process by which the system selects a driver to manage a particular device. The binding name is the name that links a driver to a unique device node in the device information tree. For each device in the device tree, the system attempts to choose a driver from a list of installed drivers.

https://docs.oracle.com/cd/E23824_01/html/819-3196/kernelovr-64300.html