Table of Contents
citron - Citron Infrared Touch Driver (CiTouch)
Section "InputDevice"
Identifier "idevname"
Driver "citron"
Option "Device" "devpath"
...
EndSection
citron is a Xorg input driver for Citron Infrared Touch devices.
The citron driver acts as a pointer input device, and may be used as the
X server's core pointer. It is connected via a "RS232" with the host.
At the moment the following touches are supported. They are also
available as ZPress touches.
IRT6I5-V2.x 6.5 inch Infrared Touch
IRT10I4-V4.x 10.4 inch Infrared Touch
IRT12I1-V2.x 12.1 inch Infrared Touch
IRT15I1-V1.x 15.1 inch Infrared Touch
Please refer to xorg.conf(5x)
for general configuration
details and for options that can be used with all input drivers. This section
only covers configuration details specific to this driver. For better understanding
please read also the CTS and various IRT manuals which are available in
"pdf" format from Citron web page www.citron.de or directly from Citron.
The following driver Options are supported:
- Option "Device" "devpath"
- Specify the device path for the citron touch. Valid devices are:
/dev/ttyS0,
/dev/ttyS1, ....
This option is mandatory. It's important to specify the right
device Note: com1 -> /dev/ttyS0, com2 -> /dev/ttyS1 ....
- Option "ScreenNumber"
"screennumber"
- sets the screennumber for the citron InputDevice.
Default:
ScreenNumber: "0"
- Option "MinX, MinY" "value"
- These are the minimum X
and Y values for the citron input device.
Note: MinX, MinY must be less
than MaxX, MaxY.
Range: "0" - "65535"
Default: MinX: "0" MinY: "0"
- Option
"MaxX, MaxY" "value"
- These are the maximum X and Y values for the citron
input device.
Note: MaxX, MaxY must be greater than MinX, MinY.
Range: "0"
- "65535"
Default: MaxX: "65535" MaxY: "65535"
- Option "ButtonNumber"
"value"
- This value is responsible for the button number that is returned
within the xf86PostButton event message
Range: "0" - "255"
Default: "1"
- Option "ButtonThreshold" "value"
- This value is responsible for the button
threshold. It changes the pressure sensitivity of the touch. A higher number
corresponds to a higher pressure.
Note: This feature is only available with
pressure sensitive hardware.
Range: "0" - "255"
Default: "20"
- Sleep-Mode
- If the IRT is in Doze-Mode and Touch Zone is not interrupted for another
certain span of time, the so-called Sleep-Mode is activated. The Sleep-Mode
decreases the scan rate of the beams even further than the Doze-Mode does
(see below). This way the life expectancy of the beams is prolonged and
the power consumption of the IRT is reduced. As soon as an interruption
of the Touch Zone is detected, the Sleep-Mode is deactivated and the Touch
Zone will again be scanned with the maximum speed. With the Sleep-Mode activated,
depending on the set scan rate the IRT's response time can be considerably
longer as in normal operation. If, for example, a scan rate of 500 ms /
scan is set, it may last up to a half of a second until the IRT detects
the interruption and deactivates the Sleep-Mode.
- Option "SleepMode" "mode"
- This value is responsible for the sleep-mode of the touch.
Determines the
behaviour of the Sleep-Mode.
0x00 No message at either activation or deactivation
0x01 Message at activation
0x02 Message at deactivation
0x03 Message at activation and deactivation
0x10 GP_OUT output set according to the Sleep-Mode status
Values: "0"
"1" "2" "3" "16"
Default: "0"
- Option "SleepTime" "time"
- This value is
responsible for the sleep-time of the touch. It is the activation time in
seconds ("0" = immediately activated, "65535" = always deactivated).
Range:
"0" - "65535" [s]
Default: "65535" => deactivated
- Option "SleepScan" "scan"
- This value is responsible for the scan-time of the touch. This is the time
interval between two scan operations while in Sleep-Mode. The time interval
is set in steps of milliseconds.
Range: "0" - "65535" [ms]
Default: "500"
- Option "PWMAdjSrc" "value"
- Option "PWMAdjDst" "value"
- These parameters
are used to adjust the brightness of different backlight inverters. At
the moment 2 backlight inverters are used: 0=TDK 1=AC. If you want a AC
backlight inverter to behave like an AC type you have to set PWMAdjSrc
to 0 (TDK) and PWMAdjDst to 1 (AC).
Range: "0" - "1"
Default: "-1" (no
adjustment)
- Option "PWMActive" "value"
- This value determines the mark-to-space
ratio of the PWM output while in normal operation (sleep-mode not active).
Higher values result in longer pulse widths. This output signal can be
used in conjunction with the Citron AWBI to do backlight-dimming via the
touch.
Range: "0" - "255"
Default: "255" (max. brightness)
- Option "PWMSleep"
"value"
- This value determines the mark-to-space ratio of the PWM output
while in sleep-mode (-> SleepMode, SleepScan, SleepTime ) operation (sleep-mode
active). Higher values result in longer pulse widths.
Range: "0" - "255"
Default: "255" (max. brightness)
- Option "PWMFreq" "value"
- This value determines
the PWM frequency in Hertz
Range: "39" - "9803"
Default: "9803" (max.
frequency)
- Option "ClickMode" "mode"
- With mode one can select between
5 ClickModes
"1" = ClickMode Enter
With this mode every interruption
of the infrared beams will activate a ButtonPress event and after the interruption
a ButtonRelease event will be sent.
"2" = ClickMode Dual
With this mode
every interruption will sent a Proximity event and every second interruption
a ButtonPress event. With the release of the interruption (while one interruption
is still active) a ButtonRelease event will be sent.
"3" = ClickMode Dual
Exit
With this mode every interruption will sent a ProximityIn event and
every second interruption a ButtonPress event. With the release of the interruption
(while one interruption is still active) no ButtonRelease event will be
sent. Only if all interruptions are released a ButtonRelease followed by
a ProximityOut event will be sent.
"4" = ClickMode ZPress
With this mode
every interruption will sent a ProximityIn event. Only if a certain pressure
is exceeded a ButtonPress event will occur. If the pressure falls below
a certain limit a ButtonRelease event will be sent. After also the interruption
is released a ProximityOut event is generated.
"5" = ClickMode ZPress Exit
This mode is similar to "Clickmode Dual Exit". The first interruption
of the beams will sent a ProximityIn event. Only if a certain pressure is
exceeded a ButtonPress event will occur. If the pressure falls below a certain
limit no ButtonRelease event will be sent. After the interruption is also
released a ButtonRelease followed by a ProximityOut event is generated.
Range: "1" - "5"
Default: "1" (ClickMode Enter)
- Option "Origin" "value"
- This value sets the coordinates origin to one of the four corners of the
screen. The following values are accepted: "0" TOPLEFT: Origin set to the
left-hand side top corner. "1" TOPRIGHT: Origin set to the right-hand side
top corner. "2" BOTTOMRIGHT: Origin set to the right-hand side bottom corner.
"3" BOTTOMLEFT: Origin set to the left-hand side bottom corner.
Range: "0"
- "3"
Default: "0" (TOPLEFT)
- Doze-Mode
- If for a certain span of time the
Touch Zone is not interrupted, the so-called Doze-Mode is automatically activated.
The activated Doze-Mode slightly decreases the scan rate of the beams. This
way the power consumption of the IRT is reduced. As soon as an interruption
of the Touch Zone is detected, the Doze-Mode is deactivated and the Touch
Zone will again be scanned with the maximum speed.
- Option "DozeMode" "mode"
- This value is responsible for the doze-mode of the touch.
Determines the
behaviour of the Doze-Mode.
0x00 No message at either activation or deactivation
0x01 Message at activation
0x02 Message at deactivation
0x03 Message
at activation and deactivation
0x10 GP_OUT output set according to the
Doze-Mode status
If the GP_OUT output is already controlled by the Sleep-Mode
it is no longer available as an output port anymore.
Values: "0" "1" "2"
"3" "16"
Default: "0"
- Option "DozeTime" "time"
- This value is responsible
for the doze-time of the touch. It is the activation time in seconds ("0"
= immediately activated, "65535" = always deactivated).
Range: "0" - "65535"
[s]
Default: "65535" => deactivated
- Option "DozeScan" "scan"
- This value
is responsible for the scan-time of the touch. This is the time interval
between two scan operations while in Doze-Mode. The time interval is set
in steps of milliseconds.
Range: "0" - "65535" [ms]
Default: "500"
- Option
"DeltaX" "value"
- This value determines a virtual area at the left and right
side of the current cursor position where the cursor didn't move. Within
this area no "MotionNotify" event will be sent.
Range: "0" - "255"
Default:
"0" (no deltaX)
- Option "DeltaY" " value "
- This value determines a virtual
area at the top and bottom of the current cursor position where the cursor
didn't move. Within this area no "MotionNotify" event will be sent.
Range:
"0" - "255"
Default: "0" (no deltaY)
- Option "Beep" "value"
- This value
determines if a "ButtonPress" and/or a "ButtonRelease" event should sound
the buzzer. "0" deactivates the buzzer while every other value will activate
it.
Range: "0" - "1"
Default: "0" (deactivated)
- Option "PressVol" "value"
- This value determines the volume of the buzzer (0-100%) when a "ButtonPress"
event is sent.
Range: "0" - "100"
Default: "100"
- Option "PressPitch"
"value"
- This value determines the pitch of the tone when a "ButtonPress"
event is sent.
Range: "0" - "3000"
Default: "880"
- Option "PressDur"
"value"
- This value determines the duration of the tone in ms when a "ButtonPress"
event is sent.
Range: "0" - "255"
Default: "15"
- Option "ReleaseVol" "value"
- This value determines the volume of the buzzer (0-100%) when a "ButtonRelease"
event is sent.
Range: "0" - "100"
Default: "100"
- Option "ReleasePitch"
"value"
- This value determines the pitch of the tone when when a "ButtonRelease"
event is sent.
Range: "0" - "3000"
Default: "1200"
- Option "ReleseDur"
"value"
- This value determines the duration of the tone in ms when when
a "ButtonRelease" event is sent.
Range: "0" - "255"
Default: "10"
- Option
"BeamTimeout" "value"
- Determines the time span in seconds, that has to
elapse before a beam is considered defective, blanked-out and excluded
from the coordinates evaluation.
Range: "0" - "65535"
Default: "30" (30
seconds)
- Option "TouchTime" "value"
- Determines the minimum time span
in steps of 10ms for a valid interruption. In order for an interruption
to be reported to the host computer as valid, it needs to remain at the
same spot for at least the time span declared here.
Range: "0" - "255"
Default: "0" (=6,5 ms)
- Option "EnterCount" "count"
- Number of skipped
"enter reports". Reports are sent approx. every 20ms.
Range: "0" - "31"
Default: "3" (3 skipped messages = 60ms)
- Option "ZEnterCount" "count"
- Number of skipped "enter reports" while in pressure sensitive mode. Reports
are sent approx. every 20ms.
Range: "0" - "31"
Default: "1" (1 skipped messages
= 20ms)
- Option "LockZEnterTime" "count"
- Minimum duration of an AreaPressEnter
state (Pressure > AreaPressure) before a PressEnter event is issued. The
time is given in 10ms steps.
Range: "0" - "255"
Default: "1" (10ms)
- Option
"LockZExitTime" "count"
- Minimum duration of an AreaPressExit state (Pressure
< AreaPressure/2) before a PressExit event is issued. The time is given
in 10ms steps.
Range: "0" - "255"
Default: "1" (10ms)
- Option "LockZLockTime"
"count"
- Minimum gap between a PressExit and a PressEnter event. The time
is in 10ms steps.
Range: "0" - "255"
Default: "10" (100ms)
- Option "DualCount"
"count"
- Number of skipped "dual touch error". Reports are sent approx. every
20ms. This option is only available for "ZPress" and "ZPress Exit" modes.
Range: "0" - "31"
Default: "2" (2 skipped messages = 40ms)
Xorg(1x)
,
xorg.conf(5x)
, xorgconfig(1x)
, Xserver(1x)
, X(7)
.
2000-2003 - written
by Citron GmbH (support@citron.de)
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