The even shorter cheesy version is to just run fastboot as root. But then you need to run every command that talks to the device as root, which tends to cause other complications. Simpler just to fix the permissions in the long run.
The shortest answer is first run the fastboot command (in my ubuntu case i.e. ./fastboot-linux oem unlock) (here i'm using ubuntu 12.04 and rooting nexus4)
然后在快速启动模式下启动设备(在连接4中按 vol-down 键和电源按钮)
我注意到在设备管理器中,当我连接到设备时,它会刷新。接下来要做的是检查连接时发生了什么变化。显然快速启动装置在 Kedacom USB Device里面。不太确定那是什么,但我更新了设备,使用不同的驱动程序,在我的情况下是 Fastboot interface (Google USB ID),这修复了我的 waiting for device问题