USB Host Mode - device access permission granted but not remembered

Question

I have a USB Host Mode application that works perfectly. I plug in the device, Android pops up the Allow the app APPNAME to access the USB device? permission r

Answer 1

This is a dup of USB device access pop-up supression?. Basically the answer is to use an intent-filter on USB_DEVICE_ATTACHED and steer clear of the RequestPermission USB Host Mode API call.