I want to develop a native Android application by using optee. I developed a Ta and host application by using optee. Right now, I want to connect Ndk application to optee host application. And, I have some questions about that.
- How can I call a method of optee host application from Android Ndk app?
- If I call optee host app in /system/bin folder from Android app, android app can see this executable? (I tried, but it is gone wrong.)
- Can I put optee host application to another folder from /system/bin? If yes, host app can call Trusted application?