did some renaming of main dirs (apps, libs, etc.)

pinout.cpp

@@ -0,0 +1,65 @@
+#include <sys/types.h>
+#include <sys/ioctl.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <stdio.h>
+#include <signal.h>
+#include <syslog.h>
+
+#define POLL_INTERVAL (1)
+
+int fd = -1;
+
+// Main program
+int main(int argc, char **argv)
+{
+	int lastflags = 0;
+	bool cts,cd,dtr;
+
+	// check parameters
+	if (argc < 2) 
+	{
+		fprintf(stderr, "Usage: pinout <device>\n");
+		exit(1);
+	}
+
+	// open serial port
+	if ((fd = open(argv[1], O_RDONLY | O_NDELAY)) < 0) 
+	{
+		fprintf(stderr, "pinout: %s: %s\n", argv[1], sys_errlist[errno]);
+		exit(1);
+	}
+
+	// Main loop
+	while (1) 
+	{
+		int flags;
+
+		// Get the current line bits
+		ioctl(fd, TIOCMGET, &flags);
+		flags &= ~TIOCM_DTR;
+		ioctl(fd, TIOCMSET, &flags);
+
+		// set state
+		cts = (flags & TIOCM_CTS ? true : false);
+		cd  = (flags & TIOCM_CD  ? true : false);
+		dtr = (flags & TIOCM_DTR ? true : false);
+
+		if ( flags != lastflags )
+			printf("cts=%s  cd=%s  dtr=%s\n",
+				cts?"high":"low",
+				cd?"high":"low",
+				dtr?"high":"low"
+			);
+		lastflags = flags;
+
+		sleep(POLL_INTERVAL);
+	}
+
+	close(fd);
+}
+
+
+