The serial version of this pad device has been supported since XFree86 3.2. `Tapping' action is interpreted as the fourth button press. (IMHO, the fourth button of GlidePoint should always be mapped to the first button in order to make this pad behave like the other pad products.)
To use this pad as a serial device:
Protocol "GlidePoint" 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 "GlidePointPS/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:
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)