Resolved! Can't open /dev/ttyRPMSG0 :(
I'm trying execution code:#define DEVICE "/dev/ttyRPMSG0" int main(void) { int fd; struct termios tty; char buf[100]; int len; printf("Opening device...\n"); fd = open( DEVICE, O_RDWR | O_NOCTTY | O_NDELAY ); // read/wr...