Hello,
I am developing an application in C for my Beagle Bone Black, this
application needs to send and receive bytes through a door "/dev/ttyO4",
however when running the command read the application locks and remains
locked until it is stopped.
I know it's a simple thing but I've tried with several examples of the
internet and the problem persists.
write(fd,&cmd,1);
char buf[1];
sleep(1);
int res = read(fd, &buf, 1);
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