Android apps can't read and write USB device solutions

If the API or APK in the Android system is unable to read or write to the USB device, it may not be possible to add read/write USB permissions, which need to be set as follows:

1. In the android.hardware.usb.host.xml file, add the following:

<permissions>

<featurename="Android.hardware.usb.host" />

</permissions>

2. In tablet_core_hardware. Add the following content to the XML file

<feature name="Android.hardware.usb.host " >

3. Recompile the system.img, and burn the firmware to restart the machine.

Android apps can't read and write USB device solutions