clean up

tty_c/Makefile

@@ -1,4 +0,0 @@
-tty: tty.c
-	$(CC) -o $@ $<
-clean:
-	rm -f tty

tty_c/tty.c

@@ -1,58 +0,0 @@
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-#include <fcntl.h>
-#include <termios.h>
-#include <poll.h>
-
-int main(void) {
-    int fd = open("/dev/ttyUSB0", O_RDWR | O_NOCTTY);
-    if (fd < 0) { perror("open"); return 1; }
-
-    // Configure serial port
-    struct termios tty;
-    tcgetattr(fd, &tty);
-    cfmakeraw(&tty);
-    cfsetspeed(&tty, B115200);
-    tty.c_cflag |= CLOCAL | CREAD;
-    tty.c_cc[VMIN] = 0;
-    tty.c_cc[VTIME] = 1;
-    tcsetattr(fd, TCSANOW, &tty);
-
-    // Set stdin to raw mode
-    struct termios old_stdin, raw_stdin;
-    tcgetattr(STDIN_FILENO, &old_stdin);
-    raw_stdin = old_stdin;
-    cfmakeraw(&raw_stdin);
-    tcsetattr(STDIN_FILENO, TCSANOW, &raw_stdin);
-
-    write(STDOUT_FILENO, "Holcks minitty - ctrl-d to exit\r\n", 33);
-
-    struct pollfd fds[2] = {
-        { .fd = STDIN_FILENO, .events = POLLIN },
-        { .fd = fd,           .events = POLLIN },
-    };
-
-    char buf[256];
-    while (1) {
-        poll(fds, 2, -1);
-        if (fds[0].revents & POLLIN) {
-            int n = read(STDIN_FILENO, buf, sizeof(buf));
-            if (n > 0) {
-                for (int i = 0; i < n; i++)
-                    if (buf[i] == 4) goto done; // Ctrl-D
-                write(fd, buf, n);
-            }
-        }
-        if (fds[1].revents & POLLIN) {
-            int n = read(fd, buf, sizeof(buf));
-            if (n > 0) write(STDOUT_FILENO, buf, n);
-        }
-    }
-
-done:
-    tcsetattr(STDIN_FILENO, TCSANOW, &old_stdin);
-    close(fd);
-    return 0;
-}