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How to communicate with QSEE in an Android application?

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问题 I am interested in developing trusted applications using TEE . I have a Nexus 5 that has Android 5.1.1 (LMY48M) on it. I want to create a very basic hello world app to understand TEE logic running on a real device. Nexus 5 supports QSEE (Qualcomm Secure Execution Environment) but I couldn't found any documentation about how to include QSEE communication libraries on a regular Android application. In an adb root shell, cat /d/tzdbg/log cat /d/tzdbg/qsee_log commands displays empty result. Is

Android AudioRecord forcing another stream to MIC audio source

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问题 Update 3: I have partnered with another developer and we seem to found somebody who can do this for a large sum of money. They have sent us a test apk and it seems to work. We will go ahead and purchase the source. I hope we are not going to be scammed. I'll update once I find out Update 2: Still working on it. After more painful days I now think there is nothing fancy going on but they are simply using AudioFlinger (See the link) on the native side to call AudioFlinger::setParameters I am

Android AudioRecord forcing another stream to MIC audio source

阅读更多关于 Android AudioRecord forcing another stream to MIC audio source

Update 3: I have partnered with another developer and we seem to found somebody who can do this for a large sum of money. They have sent us a test apk and it seems to work. We will go ahead and purchase the source. I hope we are not going to be scammed. I'll update once I find out Update 2: Still working on it. After more painful days I now think there is nothing fancy going on but they are simply using AudioFlinger ( See the link ) on the native side to call AudioFlinger::setParameters I am now looking to find how I can write a simple JNI to call AudioFlinger::setParameters with audio_io