#include <stdlib.h>
#include <termios.h>
#include <unistd.h>

struct termios orig_termios;

void disableRawMode() {
  tcsetattr(STDIN_FILENO, TCSAFLUSH, &orig_termios);
}

void enableRawMode() {
  tcgetattr(STDIN_FILENO, &orig_termios);
  atexit(disableRawMode);

  struct termios raw = orig_termios;
  raw.c_lflag &= ~(ECHO | ICANON);

  tcsetattr(STDIN_FILENO, TCSAFLUSH, &raw);
}

int main() {
  enableRawMode();

  char c;
  while (read(STDIN_FILENO, &c, 1) == 1 && c!= 'q');
  return 0;
}

#include <stdlib.h>
#include <termios.h>
#include <unistd.h>

struct termios orig_termios;

void disableRawMode() {
  tcsetattr(STDIN_FILENO, TCSAFLUSH, &orig_termios);
}

void enableRawMode() {
  tcgetattr(STDIN_FILENO, &orig_termios);
  atexit(disableRawMode);

  struct termios raw = orig_termios;
  raw.c_lflag &= ~(ECHO);

  tcsetattr(STDIN_FILENO, TCSAFLUSH, &raw);
}

int main() {
  enableRawMode();

  char c;
  while (read(STDIN_FILENO, &c, 1) == 1 && c!= 'q');
  return 0;
}

--- 
+++ 
@@ -13,7 +13,7 @@
   atexit(disableRawMode);
 
   struct termios raw = orig_termios;
-  raw.c_lflag &= ~(ECHO);
+  raw.c_lflag &= ~(ECHO | ICANON);
 
   tcsetattr(STDIN_FILENO, TCSAFLUSH, &raw);
 }
Disable canonical mode in terminal
