proposals for tty.c implementation

tty.c

@@ -3,24 +3,34 @@
 
 /* Opens the tty device and configures it. */
 int tty_open(struct tty_t *tty_dev) {
+	// PROPOSAL:
+	// open tty device to get file descriptor @tty_dev.fd
+	// setup tty device parameters @tty_dev.ttyset
+	// apply settings by calling tcsetattr(fd, ttyset)
 	return 0;
 }
 /* Closes the tty device. */
 int tty_close(struct tty_t *tty_dev) {
+	// close and set "tty_dev.fd = -1"
 	return 0;
 }
 
 /* Reconfigures the tty device. */
 int tty_reconfigure(struct tty_t *tty_dev, struct termios newttyset) {
+	// not sure how to organize this:
+	// 1. parameters in external termios struct, copied @tty_dev.ttyset, applied with tcsetattr()
+	// 2. parameters directly @tty_dev.ttyset, applied with tcsetattr()
 	return 0;
 }
 
 /* Reads incoming data from tty device to tty data buffer. */
 int tty_read(struct tty_t *tty_dev) {
+	// read and save @tty_dev.data
 	return 0;
 }
 
 /* Sends data from a buffer to tty device. */
 int tty_write(struct tty_t *tty_dev, char *databuf, int datalen) {
+	// databuf should point to client data buffer
 	return 0;
 }