可以在make menuconfig之后,通过Device Drivers——>Input device support——>Touchscreens——>USB Touchscreen Driver 然后选取需要的touchscreen类型 通过查看相关目录下的的Kconfig Makefile,可参考:Kernel 编译配置机制 注册usb驱动: 熟悉linux驱动的都知道模块入口:module_init(usbtouch_init) ,这里...
After the input device configuration loaded, the system will classify the input device as atouch screen,touch padorpointerdevice. Atouch screendevice is used for direct manipulation of objects on the screen. Since the user is directly touching the screen, the system does not require any additiona...
for (int i=0; igetEvent(&deviceId, &type, &scancode, &keycode,&flags, &value, &when); 调用的是 EventHub.cpp (frameworks\base\libs\ui)中的: bool EventHub::getEvent(int32_t* outDeviceId, int32_t* outType, int32_t* outScancode, int32_t* outKeycode, uint32_t *outFlags, int32...
client) 114 return 0; 115 116 driver = to_i2c_driver(dev->driver);//做一些数据结构的绑定 117 if (!driver->probe || !driver->id_table) 118 return -ENODEV; 119 client->driver = driver; 120 if (!device_can_wakeup(&client->dev))//做一些...
for(i = 0; i < event->touch_point; i++)//循环处理 缓存中的所有点 { input_mt_slot(data->input_dev, event->au8_finger_id[i]);//发送点的ID if(event->au8_touch_event[i]== 0 || event->au8_touch_event[i] == 2)//如果点按下 ...
device->classes |= CLASS_TOUCHSCREEN; //LOGI("It is a single-touch screen!"); } …… } 我们知道,在触摸屏驱动中,通常在probe函数中会调用input_set_abs_params给设备的input_dev结构体初始化,这些input_dev的参数会在Android的EventHub.cpp中被读取。如上可知,如果我们的触摸屏想被当成多点屏被...
The input source is a touch screen pointing device. [Android.Runtime.Register("SOURCE_TOUCHSCREEN")] [System.Obsolete("This constant will be removed in the future version. Use Android.Views.InputSourceType enum directly instead of this field.", true)] public const Android.Views.InputSourceType ...
touch.deviceType 定义:touch.deviceType = touchScreen | touchPad | pointer | default 指定触摸设备类型。 如果值为touchScreen,则触摸设备是与显示屏相关联的触摸屏。 如果值为touchPad,则触摸设备是不与显示屏相关联的触摸板。 如果值为pointer,则触摸设备是不与显示屏相关联的触摸板,并且其动作用于间接多点触控...
Here, we take Samsung phone as an example. Hold the Power button and Volume Down button at the same time for a while until the touch screen becomes black. After 1 minute or so, please restart your Android device again. In many cases, the touch screen will return to normal state after ...
Multi-touch support requires the emulator be running on a touch screen device, which includes most modern Windows PCs, including the Microsoft Surface line. Pinch, zoom, rotation etc. Lots of common UI practices are hard to test on emulators without multi-touch support, including pinch and ...