man4/ttyS.4

   1 .\" Copyright (c) 1993 Michael Haardt (michael@moria.de), Fri Apr  2 11:32:09 MET DST 1993
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  23 .\" Modified Sat Jul 24 17:03:24 1993 by Rik Faith (faith@cs.unc.edu)
  24 .TH TTYS 4 1992-12-19 "Linux" "Linux Programmer's Manual"
  25 .SH NAME
  26 ttyS \- serial terminal lines
  27 .SH DESCRIPTION
  28 \fBttyS[0-3]\fP are character devices for the serial terminal lines.
  29 .LP
  30 They are typically created by:
  31 .RS
  32 .sp
  33 mknod -m 660 /dev/ttyS0 c 4 64 # base address 0x3f8
  34 .br
  35 mknod -m 660 /dev/ttyS1 c 4 65 # base address 0x2f8
  36 .br
  37 mknod -m 660 /dev/ttyS2 c 4 66 # base address 0x3e8
  38 .br
  39 mknod -m 660 /dev/ttyS3 c 4 67 # base address 0x2e8
  40 .br
  41 chown root:tty /dev/ttyS[0-3]
  42 .sp
  43 .RE
  44 .SH FILES
  45 /dev/ttyS[0-3]
  46 .SH "SEE ALSO"
  47 .BR chown (1),
  48 .BR getty (1),
  49 .BR mknod (1),
  50 .BR tty (4),
  51 .BR setserial (8)