ttyS(4) Device Drivers Manual ttyS(4) ttyS - ttyS[0-3] -- . , , : mknod -m 660 /dev/ttyS0 c 4 64 # 0x3f8 mknod -m 660 /dev/ttyS1 c 4 65 # 0x2f8 mknod -m 660 /dev/ttyS2 c 4 66 # 0x3e8 mknod -m 660 /dev/ttyS3 c 4 67 # 0x2e8 chown root:tty /dev/ttyS[0-3] /dev/ttyS[0-3] chown(1), mknod(1), tty(4), agetty(8), mingetty(8), setserial(8) () Azamat Hackimov , Dmitry Bolkhovskikh , Yuri Kozlov , Kirill Rekhov ; GNU (GNU General Public License - GPL, 3 ) , - . - , , () () () <>. Linux 6.9.1 2 2024 . ttyS(4)