This mouse has four buttons. Thinking Mouse supports the PnP COM device specification.
To use this mouse as a serial device:
Protocol "Auto" or "ThinkingMouse" Device "/dev/xxxx" (where xxxx is a serial port)
To use this mouse as the PS/2 device and the OS supports PS/2 mouse initialization:
Protocol "ThinkingMousePS/2" Device "/dev/xxxx" (where xxxx is the PS/2 mouse device)
To use this mouse as the PS/2 device but the OS does not support PS/2 mouse initialization (the third and the fourth buttons act as though they were the first and the second buttons):
Protocol "PS/2" Device "/dev/xxxx" (where xxxx is the PS/2 mouse device)
To use this mouse as the PS/2 device and the OS supports automatic PS/2 mouse detection:
Protocol "Auto" Device "/dev/xxxx" (where xxxx is the PS/2 mouse device)