(mEpollFd < 0, "Could not create epoll instance. errno=%d", errno); // 通过inotify_init初始化文件变化的FD mINotifyFd = inotify_init(); // 通过inotify_add_watch监听/dev/input目录下的创建与删除 int result = inotify_add_watch(mINotifyFd, DEVICE_PATH, IN_DELETE | IN_CREATE); // ...
voidInputManager::initialize(){// 1 创建InputReader运行的线程InputReaderThreadmReaderThread=newInputReaderThread(mReader);// 1 创建InputDispatcher运行的线程InputDispatcherThreadmDispatcherThread=newInputDispatcherThread(mDispatcher);} InputManager的构造函数创建了4个对象,分别是IMS的核心参与者InputReader与InputDisp...
当设备的配置configuration(InputReaderConfiguration::CHANGE_MUST_REOPEN)发生改变时,表示所有的输入设备重新open,意思就是所有的设备需要先被remove掉,之后再被add上来. 第二段,是否又需要被remove的设备 1while (mClosingDevices) { 2 Device* device = mClosingDevices; 3 ... 4 mClosingDevices = device->nex...
(mEpollFd < 0, "Could not create epoll instance. errno=%d", errno); // 通过inotify_init初始化文件变化的FD mINotifyFd = inotify_init(); // 通过inotify_add_watch监听/dev/input目录下的创建与删除 int result = inotify_add_watch(mINotifyFd, DEVICE_PATH, IN_DELETE | IN_CREATE); // ...
InputMonitor.interceptKeyBeforeQueueing (继承IMS.WindowManagerCallbacks) PhoneWindowManager.interceptKeyBeforeQueueing (继承WindowManagerPolicy) 当mInputFilterEnabled=true(该值默认为false,可通过setInputFilterEnabled设置),则调用NativeInputManager.filterInputEvent过滤输入事件;当返回值为false则过滤该事件,不再往下分发;...
void (*start)(struct input_handle *handle); const struct file_operations *fops; int minor; const char *name; const struct input_device_id *id_table; struct list_head h_list; struct list_head node; }; 二 设备驱动层 本节将讲述一个简单的输入设备驱动实例。
Android 4.0 input touch解析(一) 前言 在网上看到好多关于android input device流程分析,但是都不全,有的只是从linux内核那边分析,有的从android上层分析,而且分析的代码也比较老,都是在android2.3以下,最近在做android4.0下的多点触摸以及校准程序,多点触摸的驱动很好写,在linux内核里面都有现成的例子,照着改就可以...
The input device id. Attributes RegisterAttribute Remarks Gets the input device id. Each input device receives a unique id when it is first configured by the system. The input device id may change when the system is restarted or if the input device is disconnected, reconnected or reconfigured...
status_t EventHub::unregisterDeviceFromEpollLocked(Device*device){//设备节点是否有效if(device->hasValidFd()){//1.1.1.1从epoll中删除该设备节点的监听status_t result=unregisterFdFromEpoll(device->fd);if(result!=OK){//无法删除设备节点ALOGW("Could not remove input device fd from epoll for device...
java.lang.Object ↳ android.view.InputDevice Class Overview Describes the capabilities of a particular input device. Each input device may support multiple classes of input. For example, a multi-function keyboard may compose the capabilities of a standard keyboard together with a track pad mouse...