Android USB-阿里云

Android Mediatek 应用层重置USB设备功能

当时是为了解决TP或者鼠标在设备重启的时候偶尔会失灵的问题。（系统启动后软件模拟重新插拔otg) USB设备重启功能的添加和权限修改这个修改主要是在Android的WindowManagerService.java中添加了一个USB设备重启的功能，并且修改了在usb20.c中的USB设备的权限。 ...

Android Mediatek USB 核心驱动中增加设备 PID/VID 检查

这个是在mtk usb核心驱动增加的检查文件，并且对vid、pid进行过滤的。这个修改主要在Mediatek USB 核心驱动的 usb_new_device 函数中增加了设备 PID/VID 的检查。当新的 USB 设备连接时，驱动会检查设备的 PID/VID 是否在预定义的列表...

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如何在没有 USB 数据线的情况下使用 Android Studio 在手机中安装 Android

背景如何在没有 USB 数据线的情况下使用 Android Studio 在手机中安装 Android 应用程序？运行调式一个Android项目，写下必要的代码后，接下来的任务是在模拟器或手机上运行应用程序，测试应用程序是否正常，及debug模式。在模拟器上运行是非常简单，不需要外接us...

无影云电脑是否支持用USB连上手机，调试手机App，开发Android应用？

Android10.0(Q) 6765 USB 摄像头调试记录

过程开整之前，按习惯去 FAQ 上一顿搜索，都是些低版本的改动记录，后来得知高版本对 USB Camera这块的支持太少了。FAQ 上淘到一个6.0的改动方法，照着试了试发现不行呃。后来经过一番搜索后，找到 MTK USB CMAERA 调试记录，按照这哥们的修改可行。编译后重新烧写，插入USB摄像...

RK3288 Android7.1 接USB摄像头后扬声器无声音

问题接入某些USB摄像头后, 扬声器没有声音2017-01-01 21:19:24.770 228-287/? E/AudioHardwareTiny: pcm_open(PCM_CARD_HDMI) failed: 222 cannot open device '/dev/snd/pcmC0D1p...

android 采集PCM音频数据并播放(支持USB摄像头MIC)

平台RK3288 + Android 7.1开发在开始之前需要先了解下当前的音频设备情况:查看当前支持的声卡设备(找到card[0, N])rk3288:/proc/asound # ll total 0 lrwxrwxrwx 1 root root 5 2020-04-15 1...

android 接入USB输入设备后应用重跑onCreate

平台:RK3288 + Android7.12问题:打开测试应用, 并在各个生命周期中加入LOG, 当接入USB外设后, 会导致Activity重走了一次生命周期.LOG如下: 2017-01-02 11:35:20.189com.test.app I/EntranceActivity: ALog ...

[RK3568 Android11]USB线缆的要求

一、USB线缆的规则USB2.0规范中对USB线缆的规则如下：除了低速线，其他都要求使用USB一端的USB座子外壳来屏蔽线缆D+/D-双绞线，28AWG差分阻抗90欧，共模阻抗30欧尽量等长规范规定最长5米二、实图

Android手机教你如何找到USB调试

一、三星手机升级安卓4.3系统后教你如何找到USB调试1.打开手机中的“设置”，然后选择“关于手机”（有的可能是“关于设备”），然后点击进入。2.进入到“关于手机”后，选择“内部版本号”，然后不停点击这个选项，一直点到显示“不需要，开发者模式已启用”即可，其实不需要点多少...

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