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A problem about serial port on i.MX6Q-SDB

Question asked by peng xingwei on Sep 15, 2015
Latest reply on Sep 17, 2015 by peng xingwei

Dear all,

     Hello,My development board is equipped with Android system,I write a serial test apk,this app can set  the serial parameters like baudrate,but when I write or read data from the serial port I set ,

There was an error message:You do not have read/write permission to the serial port. How to solve the problem?Thank you !