怎样才能用触屏移动光标？

[jiangshao]

连接触摸屏到sabresd_6dq-eng(android 4.2.2),可以点按，但是无法移动光标。

（也就是说无论在触屏的何处按下，只要鼠标不移动，屏幕上总是在同一位置显示一个圆圈）

怎样才能实现光标的移动？

通过getevent，点按左上角，可以看到如下信息

/dev/input/event2: 0003 0003 0000009d 绝对坐标 ABS_RX 157

/dev/input/event2: 0003 0004 00000118 绝对坐标 ABS_RY 280

/dev/input/event2: 0000 0000 00000000 EV_SYNC SYN_REPORT

/dev/input/event2: 0004 0004 00090001 EV_MSC ?

/dev/input/event2: 0001 0110 00000001 按键 鼠标左键 按下

/dev/input/event2: 0000 0000 00000000 EV_SYNC SYN_REPORT

/dev/input/event2: 0004 0004 00090001 EV_MSC ?

/dev/input/event2: 0001 0110 00000000按键 鼠标左键 抬起

/dev/input/event2: 0000 0000 00000000 EV_SYNC SYN_REPORT

通过cat /proc/bus/input/devices

可以看到如下信息：

I: Bus=0003 Vendor=227d Product=010a Version=0111

N: Name="UNITEC USB Touch (WinXP&7)"

P: Phys=usb-fsl-ehci.1-1.4.2/input0

S: Sysfs=/devices/platform/fsl-ehci.1/usb2/2-1/2-1.4/2-1.4.2/2-1.4.2:1.0/input/i

nput12

U: Uniq=

H: Handlers=mouse1 event2 cpufreq_interactive

B: PROP=0

B: EV=1b

B: KEY=fff 0 30000 0 0 0 0 0 0 0 0

B: ABS=7ff00 1ffffff

B: MSC=10

通过dumpsys input可以看到如下信息：

Device 13: UNITEC USB Touch (WinXP&7)

    Generation: 54

    IsExternal: true

    Sources: 0x00006002

    KeyboardType: 0

    Motion Ranges:

      X: source=0x00006002, min=0.000, max=1919.000, flat=0.000, fuzz=0.144

      Y: source=0x00006002, min=0.000, max=1079.000, flat=0.000, fuzz=0.141

      PRESSURE: source=0x00006002, min=0.000, max=1.000, flat=0.000, fuzz=0.000

    Touch Input Mapper:

      Parameters:

        GestureMode: spots

        DeviceType: pointer

        AssociatedDisplay: hasAssociatedDisplay=true, isExternal=false

        OrientationAware: false

      Raw Touch Axes:

        X: min=0, max=13311, flat=0, fuzz=0, resolution=0

        Y: min=0, max=7679, flat=0, fuzz=0, resolution=0

        Pressure: min=0, max=7679, flat=0, fuzz=0, resolution=0

        TouchMajor: unknown range

        TouchMinor: unknown range

        ToolMajor: unknown range

        ToolMinor: unknown range

        Orientation: unknown range

        Distance: unknown range

        TiltX: unknown range

        TiltY: unknown range

        TrackingId: unknown range

        Slot: unknown range

      Calibration:

        touch.size.calibration: none

        touch.pressure.calibration: physical

        touch.orientation.calibration: none

        touch.distance.calibration: none

      Viewport: displayId=0, orientation=0, logicalFrame=[0, 0, 1920, 1080], phy

sicalFrame=[0, 0, 1920, 1080], deviceSize=[1920, 1080]

      SurfaceWidth: 1920px

      SurfaceHeight: 1080px

      SurfaceLeft: 0

      SurfaceTop: 0

      SurfaceOrientation: 0

      Translation and Scaling Factors:

        XTranslate: 0.000

        YTranslate: 0.000

        XScale: 0.144

        YScale: 0.141

        XPrecision: 6.933

        YPrecision: 7.111

        GeometricScale: 0.142

        PressureScale: 0.000

        SizeScale: 0.000

        OrientationScale: 0.000

        DistanceScale: 0.000

        HaveTilt: false

        TiltXCenter: 0.000

        TiltXScale: 0.000

        TiltYCenter: 0.000

        TiltYScale: 0.000

      Last Button State: 0x00000000

      Last Raw Touch: pointerCount=0

      Last Cooked Touch: pointerCount=0

      Pointer Gesture Detector:

        XMovementScale: 0.115

        YMovementScale: 0.115

        XZoomScale: 0.043

        YZoomScale: 0.043

        MaxSwipeWidth: 3842.132812

  Configuration:

    ExcludedDeviceNames: []

    VirtualKeyQuietTime: 0.0ms

    PointerVelocityControlParameters: scale=1.000, lowThreshold=500.000, highThr

eshold=3000.000, acceleration=3.000

    WheelVelocityControlParameters: scale=1.000, lowThreshold=15.000, highThresh

old=50.000, acceleration=4.000

    PointerGesture:

      Enabled: true

      QuietInterval: 100.0ms

      DragMinSwitchSpeed: 50.0px/s

      TapInterval: 150.0ms

      TapDragInterval: 300.0ms

      TapSlop: 20.0px

      MultitouchSettleInterval: 100.0ms

      MultitouchMinDistance: 15.0px

      SwipeTransitionAngleCosine: 0.3

      SwipeMaxWidthRatio: 0.2

      MovementSpeedRatio: 0.8

      ZoomSpeedRatio: 0.3

[jiangshao]

How can move cursor by touch-screen

I connected a touch-screen to sabresd_6dq-eng(android 4.2.2).

I can touch, but I can't move cursor.

（That is to say, no matter where in the touch screen by pressing, as long as the mouse is not moving,

always in the same location on the screen shows a circle）

How can move cursor by touch-screen？

use getevent command，press the left-up，I can see the following messages.

/dev/input/event2: 0003 0003 0000009d EV_ABS ABS_RX 157

/dev/input/event2: 0003 0004 00000118 EV_ABS ABS_RY 280

/dev/input/event2: 0000 0000 00000000 EV_SYNC SYN_REPORT

/dev/input/event2: 0004 0004 00090001 EV_MSC ?

/dev/input/event2: 0001 0110 00000001 EV_KEY BTN_MOUSE down

/dev/input/event2: 0000 0000 00000000 EV_SYNC SYN_REPORT

/dev/input/event2: 0004 0004 00090001 EV_MSC ?

/dev/input/event2: 0001 0110 00000000 EV_KEY BTN_MOUSE up

/dev/input/event2: 0000 0000 00000000 EV_SYNC SYN_REPORT

use cat /proc/bus/input/devices

I can see the following messages.

I: Bus=0003 Vendor=227d Product=010a Version=0111

N: Name="UNITEC USB Touch (WinXP&7)"

P: Phys=usb-fsl-ehci.1-1.4.2/input0

S: Sysfs=/devices/platform/fsl-ehci.1/usb2/2-1/2-1.4/2-1.4.2/2-1.4.2:1.0/input/i

nput12

U: Uniq=

H: Handlers=mouse1 event2 cpufreq_interactive

B: PROP=0

B: EV=1b

B: KEY=fff 0 30000 0 0 0 0 0 0 0 0

B: ABS=7ff00 1ffffff

B: MSC=10

use dumpsys input，

I can see the following messages.

Device 13: UNITEC USB Touch (WinXP&7)

    Generation: 54

    IsExternal: true

    Sources: 0x00006002

    KeyboardType: 0

    Motion Ranges:

      X: source=0x00006002, min=0.000, max=1919.000, flat=0.000, fuzz=0.144

      Y: source=0x00006002, min=0.000, max=1079.000, flat=0.000, fuzz=0.141

      PRESSURE: source=0x00006002, min=0.000, max=1.000, flat=0.000, fuzz=0.000

    Touch Input Mapper:

      Parameters:

        GestureMode: spots

        DeviceType: pointer

        AssociatedDisplay: hasAssociatedDisplay=true, isExternal=false

        OrientationAware: false

      Raw Touch Axes:

        X: min=0, max=13311, flat=0, fuzz=0, resolution=0

        Y: min=0, max=7679, flat=0, fuzz=0, resolution=0

        Pressure: min=0, max=7679, flat=0, fuzz=0, resolution=0

        TouchMajor: unknown range

        TouchMinor: unknown range

        ToolMajor: unknown range

        ToolMinor: unknown range

        Orientation: unknown range

        Distance: unknown range

        TiltX: unknown range

        TiltY: unknown range

        TrackingId: unknown range

        Slot: unknown range

      Calibration:

        touch.size.calibration: none

        touch.pressure.calibration: physical

        touch.orientation.calibration: none

        touch.distance.calibration: none

      Viewport: displayId=0, orientation=0, logicalFrame=[0, 0, 1920, 1080], phy

sicalFrame=[0, 0, 1920, 1080], deviceSize=[1920, 1080]

      SurfaceWidth: 1920px

      SurfaceHeight: 1080px

      SurfaceLeft: 0

      SurfaceTop: 0

      SurfaceOrientation: 0

      Translation and Scaling Factors:

        XTranslate: 0.000

        YTranslate: 0.000

        XScale: 0.144

        YScale: 0.141

        XPrecision: 6.933

        YPrecision: 7.111

        GeometricScale: 0.142

        PressureScale: 0.000

        SizeScale: 0.000

        OrientationScale: 0.000

        DistanceScale: 0.000

        HaveTilt: false

        TiltXCenter: 0.000

        TiltXScale: 0.000

        TiltYCenter: 0.000

        TiltYScale: 0.000

      Last Button State: 0x00000000

      Last Raw Touch: pointerCount=0

      Last Cooked Touch: pointerCount=0

      Pointer Gesture Detector:

        XMovementScale: 0.115

        YMovementScale: 0.115

        XZoomScale: 0.043

        YZoomScale: 0.043

        MaxSwipeWidth: 3842.132812

  Configuration:

    ExcludedDeviceNames: []

    VirtualKeyQuietTime: 0.0ms

    PointerVelocityControlParameters: scale=1.000, lowThreshold=500.000, highThr

eshold=3000.000, acceleration=3.000

    WheelVelocityControlParameters: scale=1.000, lowThreshold=15.000, highThresh

old=50.000, acceleration=4.000

    PointerGesture:

      Enabled: true

      QuietInterval: 100.0ms

      DragMinSwitchSpeed: 50.0px/s

      TapInterval: 150.0ms

      TapDragInterval: 300.0ms

      TapSlop: 20.0px

      MultitouchSettleInterval: 100.0ms

      MultitouchMinDistance: 15.0px

      SwipeTransitionAngleCosine: 0.3

      SwipeMaxWidthRatio: 0.2

      MovementSpeedRatio: 0.8

      ZoomSpeedRatio: 0.3

[jimmychan]

this may useful for you Re: White ring round a touch point in Android on i.MX6

[jiangshao]

Thank you for your reply,

I tried it yesterday, found that do not show white circles,

but the touch-screen don't work anymore.:smileycry:

[YanjunLuo]

I fixed similar problem before, you can check here.

https://community.freescale.com/thread/329665

[jiangshao]

非常感谢你的回答。

我英语比较烂，就用中文了。

冒昧地问下能否再说得详细些？

作为初学者有点看不明白。

另外根据jimmychan的回答我写过一个Vendor_227d_Product_010a.idc

touch.deviceType = touchScreen

touch.orientationAware = 1

touch.size.calibration = none

touch.orientation.calibration = none

接上后确实不显示白色圆圈了，但是触屏也不工作了。。。

[YanjunLuo]

I'm new to Android too, change the idc may works, but I don't know, my way is set the INPUT_PROP_DIRECT when you register the touch panel device. I mean, you must change the kernel driver code to do it. I saw the same result as you first, after I set the INPUT_PROP_DIRECT, it just works as touch panel. Then I add some calibration later because I'm using resistive touch and it works very well now.

Here is my code for your reference.

set_bit(INPUT_PROP_DIRECT, input_dev->propbit);

BTW, I'm working on touch panel wakeup the Android now, there is long way to go.