You can disable specific types of USB devices by disabling their client driver. For example, USB printers can be disabled by disabling the usbprn driver that directs them. Disabling usbprn does not affect other kinds of devices, such as USB storage devices.
The following list identifies some USB device types and their corresponding drivers:
usb_ac and usb_as
hid (usually keyboard and mouse)
scsa2usb
usbprn
usbser_edge
If you disable a driver for a USB device that is still connected to the system, a warning message similar to the following is displayed:
usba10: WARNING: usba: no driver found for device name