| Utility Operation | Transfer Time (10 GB mix of small/large files) | CPU usage (host) | |----------------------------------------|------------------------------------------------|------------------| | MTP (via gvfs-mtp ) | 8 min 20 sec | 12% (single core)| | ADB sync ( adb sync /sdcard/ ./ ) | 7 min 05 sec | 8% | | USB Mass Storage (UMS – custom kernel) | 2 min 50 sec | 3% | | SCP over USB RNDIS (Ethernet) | 4 min 15 sec | 5% |
adb devices -l adb shell dumpsys battery adb push ./my_script.sh /data/local/tmp/ Overview: Fastboot is a low-level USB utility that communicates with the Android bootloader to flash system partitions, unlock/lock the bootloader, and recover bricked devices. usb util android
These utilities bypass Android security entirely; misuse can permanently brick devices. 3. Utility Implementation Patterns 3.1 Accessory Mode (Android Open Accessory - AOA) AOA Utility: Allows external hardware (Arduino, Raspberry Pi) to communicate with an Android device without rooting. The accessory initiates handshake, and Android switches to accessory mode. | Utility Operation | Transfer Time (10 GB
adb shell dumpsys usb adb shell lsusb (if busybox installed) | Utility Mode | Vendor ID (hex) | Product ID (hex) | |-----------------------|----------------|------------------| | ADB (Google) | 18D1 | 4EE7 | | Fastboot | 18D1 | D00D | | MTP (Generic) | 0BB4 (HTC), 22B8 (Motorola), 04E8 (Samsung) | varies | | Samsung Download Mode | 04E8 | 685D | | Qualcomm EDL | 05C6 | 9008 | End of Report Utility Implementation Patterns 3