ADBio

ADBio is a home-screen widget for Android that turns Android Debug Bridge access on and off. Instead of opening the developer settings and scrolling to the USB debugging entry each time, the user taps the widget to switch the state and taps again to reverse it. The widget reflects the current state, so it also serves as an indicator of whether ADB is presently enabled.

The application is narrow in scope: it toggles a single system setting and does nothing else. There is no file transfer, no shell, and no device pairing — those tasks belong to the ADB client running on the connected computer. ADBio only governs whether the Android side accepts such a connection.

Because it changes a protected system setting, ADBio depends on having sufficient privileges on the device to write that setting; on installations where it does not, the toggle will not take effect. It is published for Android only, under GPL-3.0-only, and has no desktop counterpart.