Linux Serial Read throws Error

Question

I\'m attempting to read from my serial port using the following C code. I can successfully write to a listening computer (yay!) but the read throws Error (Code 11 - Resource tem

Answer 1

You have a buffer overflow here:

sprintf(message,"Test%d\r",running);

since message is declared as:

char message[6];

message needs to be at least 7 characters in size if it's going to hold a 6 character string, due to the need for a '\0' terminator.

There may well be other problems too, but you should fix this and see if it makes any difference.