android手机调试log device is empty解决办法

log device is empty解决办法

$ adb logcat
info: log device is empty!

关闭了log，解决方法：

http://stackoverflow.com/questions/6941710/unable-to-open-log-device-dev-log-main-no-such-file-or-directory

Dial this: *#*#2846579#*#*
Service menu will appear.
Go to “ProjectMenu” -> “Background Setting” -> “Log Setting” 

Open “Log switch” and set it to ON.
Open “Log level setting” and set the log level you wish.

Reboot the phone.