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citron (4)
  • >> citron (4) ( Linux man: Специальные файлы /dev/* )
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    NAME

    citron - Citron Infrared Touch Driver (CiTouch)
     
    

    SYNOPSIS

    Section N'34'InputDeviceN'34'
      Identifier N'34'idevnameN'34'
      Driver N'34'citronN'34'
      Option N'34'DeviceN'34'   N'34'devpathN'34'
      ...
    EndSection
    
     

    DESCRIPTION

    citron is a XFree86 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.  

    SUPPORTED HARDWARE

    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

     

    CONFIGURATION DETAILS

    Please refer to XF86Config(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 N'34'DeviceN'34' N'34'devpathN'34'
    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 N'34'ScreenNumberN'34' N'34'screennumberN'34'
    sets the screennumber for the citron InputDevice.

    Default: ScreenNumber: "0"

    Option N'34'MinXN'34' N'34'valueN'34'
    Option N'34'MinYN'34' N'34'valueN'34'
    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 N'34'MaxXN'34' N'34'valueN'34'
    Option N'34'MaxYN'34' N'34'valueN'34'
    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 N'34'ButtonNumberN'34' N'34'valueN'34'
    This value is responsible for the button number that is returned within the xf86PostButton event message

    Range: "0" - "255"

    Default: "1"

    Option N'34'ButtonThresholdN'34' N'34'valueN'34'
    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 N'34'SleepModeN'34' N'34'modeN'34'
    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 N'34'SleepTimeN'34' N'34'timeN'34'
    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 N'34'SleepScanN'34' N'34'scanN'34'
    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 N'34'PWMActiveN'34' N'34'valueN'34'
    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 N'34'PWMSleepN'34' N'34'valueN'34'
    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 N'34'PWMFreqN'34' N'34'valueN'34'
    This value determines the PWM frequency in Hertz.

    Range: "39" - "9803"

    Default: "9803" (max. frequency)

    Option N'34'ClickModeN'34' N'34'modeN'34'
    With mode one can select between 5 ClickModes

    N'34'1N'34' = 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.

    N'34'2N'34' = 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.

    N'34'3N'34' = 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.

    N'34'4N'34' = 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.

    N'34'5N'34' = 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 N'34'OriginN'34' N'34'valueN'34'
    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 N'34'DozeModeN'34' N'34'modeN'34'
    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 N'34'DozeTimeN'34' N'34'timeN'34'
    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 N'34'DozeScanN'34' N'34'scanN'34'
    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 N'34'DeltaXN'34' N'34'valueN'34'
    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 N'34'DeltaYN'34' N'34'valueN'34'
    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 N'34'BeepN'34' N'34'valueN'34'
    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 N'34'PressVolN'34' N'34'valueN'34'
    This value determines the volume of the buzzer (0-100%) when a "ButtonPress" event is sent.

    Range: "0" - "100"

    Default: "100"

    Option N'34'PressPitchN'34' N'34'valueN'34'
    This value determines the pitch of the tone when a "ButtonPress" event is sent.

    Range: "0" - "3000"

    Default: "880"

    Option N'34'PressDurN'34' N'34'valueN'34'
    This value determines the duration of the tone in ms when a "ButtonPress" event is sent.

    Range: "0" - "255"

    Default: "15"

    Option N'34'ReleaseVolN'34' N'34'valueN'34'
    This value determines the volume of the buzzer (0-100%) when a "ButtonRelease" event is sent.

    Range: "0" - "100"

    Default: "100"

    Option N'34'ReleasePitchN'34' N'34'valueN'34'
    This value determines the pitch of the tone when when a "ButtonRelease" event is sent.

    Range: "0" - "3000"

    Default: "1200"

    Option N'34'ReleseDurN'34' N'34'valueN'34'
    This value determines the duration of the tone in ms when when a "ButtonRelease" event is sent.

    Range: "0" - "255"

    Default: "10"

    Option N'34'BeamTimeoutN'34' N'34'valueN'34'
    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 N'34'TouchTimeN'34' N'34'valueN'34'
    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 N'34'EnterCountN'34' N'34'countN'34'
    Number of skipped "enter reports". Reports are sent approx. every 20ms.

    Range: "0" - "31"

    Default: "3" (3 skipped messages = 60ms)

    Option N'34'ZEnterCountN'34' N'34'countN'34'
    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 N'34'DualCountN'34' N'34'countN'34'
    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)

     

    SEE ALSO

    XFree86(1), XF86Config(5x), xf86config(1), Xserver(1), X(7).  

    AUTHORS

    2000-2001 - written by Citron GmbH (support@citron.de)


     

    Index

    NAME
    SYNOPSIS
    DESCRIPTION
    SUPPORTED HARDWARE
    CONFIGURATION DETAILS
    SEE ALSO
    AUTHORS


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