P-Series Touchscreen Driver for X

Download the tarball and extract it to some temporary directory.

tar xzvf fujitsu-xx.yy.tar.gz

Copy the file "fujitsu_drv.o" to the appropriate location ("/usr/X11R6/lib/modules/input"). Insert the lines below to the file "/etc/X11/XF86Config-4" or "/etc/X11/xorg.conf".

Section "InputDevice"
    Identifier "touchscreen"
    Driver "fujitsu"
    Option "Device" "/dev/ttyS0"
    Option "DeviceName" "touchscreen"
    Option "MinX" "82"
    Option "MinY" "146"
    Option "MaxX" "4036"
    Option "MaxY" "3999"
    Option "SendCoreEvents" "On"
EndSection

Add the line below to the file "/etc/X11/XF86Config-4" or "/etc/X11/xorg.conf" to the section "ServerLayout".

InputDevice "touchscreen" "CorePointer"

Now you have to enable the touchscreen by configuring the serial port which the touchscreen is connected to. This is done with the command setserial:

setserial /dev/ttyS0 port 0x0220 irq 4 autoconfig

This command has to be called each time before you start X. To make this happen automatically -- put it in a script. Since V0.6.3 the script stylus is contained in the tarball for this task.

Copy the file "stylus" to the appropriate location ("/etc/init.d").
cp stylus /etc/init.d/
Now you have to make shure this script is called with the parameter "start" each time BEFORE X starts. For Debian based distributions you have to call:
update-rc.d stylus default 90

Button-Events

With the state-machine based code you can have the three types of button actions (button up, down, click) which are issued in different states of the state-machine. So the complete behaviour is configurable.

Have a look at Libtouch to see which default-actions are hard-coded in the driver and what you have to do to change the default-behaviour.

Advanced Configuration

Option	Description	Default-Value
TapTimer	This timer starts when the state ENTER_MAYBE_TAPPED is entered. When this timer expires a tap-event is issued and the state changes to UNTOUCHED.	90 ms
LongTouchTimer	This timer is always started when the state TOUCHED is entered. When the timer expires before you untouch the screen again the state moves to LONGTOUCHED and on entering that state a longtouch-event is issued. If the screen was tapped and after that touched again aproximately at the same location (+- MoveLimit) a ONEANDAHALF-Event is issued. In this case the screen has also to be touched for LongTouchTimer milli-seconds.	160 ms
MoveLimit	If the pen moves out of this radius a "mouse-press"-event becomes impossible. Currently the move-limit is related to the RAW coordinates sent by the touchscreen-device.	180
Rotate	There are two valid values:`CW` -- Rotate the screen clockwise`CCW` -- Rotate the screen counter-clockwise Everything else will be treated as "no rotation".	no rotation
SwapX	When set to 1 the X-axis is swapped. This option is applied BEFORE the rotation-option.	false -- no swapping
SwapY	When set to 1 the Y-axis is swapped. This option is applied BEFORE the rotation-option.	false -- no swapping

Option

Description

Default-Value

TapTimer

This timer starts when the state ENTER_MAYBE_TAPPED is entered. When this timer expires a tap-event is issued and the state changes to UNTOUCHED.

90 ms

LongTouchTimer

This timer is always started when the state TOUCHED is entered. When the timer expires before you untouch the screen again the state moves to LONGTOUCHED and on entering that state a longtouch-event is issued. If the screen was tapped and after that touched again aproximately at the same location (+- MoveLimit) a ONEANDAHALF-Event is issued. In this case the screen has also to be touched for LongTouchTimer milli-seconds.

160 ms

MoveLimit

If the pen moves out of this radius a "mouse-press"-event becomes impossible. Currently the move-limit is related to the RAW coordinates sent by the touchscreen-device.

180

Rotate

There are two valid values:CW -- Rotate the screen clockwiseCCW -- Rotate the screen counter-clockwise Everything else will be treated as "no rotation".

no rotation

SwapX

When set to 1 the X-axis is swapped. This option is applied BEFORE the rotation-option.

false -- no swapping

SwapY

When set to 1 the Y-axis is swapped. This option is applied BEFORE the rotation-option.

false -- no swapping

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