Manpages - ttyS.4

ttyS - serial terminal lines

ttyS[0-3] are character devices for the serial terminal lines.

They are typically created by:

  mknod -m 660 /dev/ttyS0 c 4 64 # base address 0x3f8
  mknod -m 660 /dev/ttyS1 c 4 65 # base address 0x2f8
  mknod -m 660 /dev/ttyS2 c 4 66 # base address 0x3e8
  mknod -m 660 /dev/ttyS3 c 4 67 # base address 0x2e8
  chown root:tty /dev/ttyS[0-3]

/dev/ttyS[0-3]

*chown*(1), *mknod*(1), *tty*(4), *agetty*(8), *mingetty*(8), *setserial*(8)

This page is part of release 5.13 of the Linux man-pages project. A description of the project, information about reporting bugs, and the latest version of this page, can be found at https://www.kernel.org/doc/man-pages/.