[avr-chat] Where to see the original code of avr/common.h and avr.portpins.h

[Chen, Yuan Guang (Ex CH97)]

Dear

 

I have tried to read docs , like in “ http://www.nongnu.org/avr-libc/user-manual/ “ , though there are places mentioned the io.h normally includes “common.h and portpins.h”, I can not find the detail of this 2 header docs.     

 

So I think I still not familiar with how to get information from online resources.  Could you give a guide?

 

Thank you and best regards

Chen Yuanguang