默认情况下 没有以root权限启动adb将出现以下结果
$ adb devices
* daemon started successfully *
List of devices attached
???????????? no permissions
百度 谷歌 一番后才得以解决
# vim /etc/udev/rules.d/50-android.rules
加入以下行
SUBSYSTEM=="usb", ENV{DEVTYPE}=="usb_device", MODE="0666"
保存
#chmod a+r /etc/udev/rules.d/50-android.rules
#adb kill-server (需要环境变量支持)
重新插入android设备
$adb devices
* daemon started successfully *
List of devices attached
01607A491200D01D device