Question

Pointer handling in Qt/Embedded works for any mouse or mouse-like
device such as touchpanels and trackballs.

Usually only one pointer device is supported in an embedded device,
but for demonstration purposes, Qt/Embedded includes a large number of
supported devices.

Mouse Protocols

Qt/Embedded normally auto-detects the mouse type and device if it is one of
the supported types on /dev/psaux or one of the /dev/ttyS?
serial lines. If multiple mice are detected, all may be used simultaneously.

Alternatively, you may set the environment variable QWS_MOUSE_PROTO to
determine which mouse to use. This environment variable may be set to:

<protocol>:<device>

where <protocol> is one of:

• MouseMan
• IntelliMouse
• Microsoft

and <device> is the mouse device, often /dev/mouse.
If no such variable is specified, the built-in default
is Auto, which enables auto-detection of the mouse protocol
and device.

To add another protocol, new subclasses of QAutoMouseSubHandler or
QMouseHandler can be written in kernel/qwsmouse_qws.cpp.

Touch Panels

Qt/Embedded ships with support for the NEC Vr41XX touchpanel
and the iPAQ touchpanel.
These are subclasses of QCalibratedMouseHandler which is in turn
a subclass of QMouseHandler in kernel/qwsmouse_qws.cpp.