Android tp触摸的相关内容

Android 12修改usb tp触摸唤醒

前言 Android 12系统休眠时，需要不管接什么型号usb tp都能够触摸唤醒。 Android12系统中，usb tp要能够触摸唤醒，需要在frameworks/native/services/inputflinger/reader/mapper/TouchInputMapper.cpp中将m...

Android 解决USB TP驱动中触摸卡顿和防抖动问题

背景在一个较为成熟的支持类项目中，客户更换了USB触摸屏。由于设备已经组装为整机，拆卸变得不太方便，因此我选择通过软件途径来进行问题的排查和调试。在这种情境下，触摸事件的防抖动问题成为了一个问题，这往往是由于USB TP硬件因素导致的冗余触摸事件。问题描述客户反映，在操作触摸屏时，偶尔会出现多...

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Android系统添加动态控制USB TP触摸方向、触摸唤醒

实现步骤为了实现USB触摸屏（TP）的唤醒和旋转功能，我对Android系统的三个模块进行了修改：inputflinger、surfaceflinger和Settings。 inputflinger是负责处理输入事件的服务，它接收来自硬件设备的原始输入事件，并将它们转换为Android系统可以理解...

Android 支持TP触摸唤醒

这个修改是我在全志6.0上增加的 , 当时的需求是屏幕3分钟灭屏后可以通过触摸TP从而唤醒屏幕。原理是通过TP接收到触摸上报了个power key 灰常简单思路万古不变希望能帮到有需要的人。这个修改主要对 Android 系统的触摸屏和显示驱动进行了优化，包括对触摸屏的睡眠唤醒功...

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