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Diffstat (limited to 'static/unix-v10/man4/tty.4')
| -rw-r--r-- | static/unix-v10/man4/tty.4 | 114 |
1 files changed, 114 insertions, 0 deletions
diff --git a/static/unix-v10/man4/tty.4 b/static/unix-v10/man4/tty.4 new file mode 100644 index 00000000..7d7a052a --- /dev/null +++ b/static/unix-v10/man4/tty.4 @@ -0,0 +1,114 @@ +.TH TTY 4 +.CT 2 comm_term +.SH NAME +tty \- serial line interface drivers +.SH SYNOPSIS +.B #include <sys/ttyio.h> +.SH DESCRIPTION +The files +.L /dev/tty* +refer to serial line devices +such as the DZ11. +They are normally used in conjunction +with the terminal line discipline, +.IR ttyld (4). +.PP +Certain device-related parameters, +such as parity and line speed, +may be set by +.IR ioctl (2) +calls: +.TF TIOCGDEV +.TP +.B TIOCGDEV +The argument points to a +.B ttydevb +structure to be filled in with current settings. +.TP +.B TIOCSDEV +The argument points to a +.B ttydevb +structure from which the parameters are set. +.PD +.PP +The +.B ttydevb +structure, as defined in +.BR <sys/ttyio.h> , +is +.PP +.EX +.ta \w'struct 'u +\w'ttydevb 'u +\w'ispeed; 'u +struct ttydevb { + char ispeed; /* input speed */ + char ospeed; /* output speed */ + short flags; /* mode flags */ +}; +.EE +.PP +The speeds are encoded as follows. +Impossible speeds are ignored. +.PP +.nf +.ta \w'B9600 'u +5n +\f5B0 0\fP (hang up device) +\f5B50 1\fP 50 baud +\f5B75 2\fP 75 baud +\f5B110 3\fP 110 baud +\f5B134 4\fP 134.5 baud +\f5B150 5\fP 150 baud +\f5B200 6\fP 200 baud +\f5B300 7\fP 300 baud +\f5B600 8\fP 600 baud +\f5B1200 9\fP 1200 baud +\f5B1800 10\fP 1800 baud +\f5B2400 11\fP 2400 baud +\f5B4800 12\fP 4800 baud +\f5B9600 13\fP 9600 baud +\f5EXTA 14\fP External A +\f5EXTB 15\fP External B +.fi +.DT +.PP +The flags are: +.PP +.nf +\f5F8BIT 040\fP eight-bit input and output +\f5ODDP 0100\fP odd parity +\f5EVENP 0200\fP even parity +.fi +.PP +If +.L F8BIT +is set, +all eight bits of each output character +are transmitted +without imposing parity, +and all eight bits of each input character +are passed back without +parity checking or stripping. +Otherwise, +.L EVENP +requests that even parity be accepted and generated, +.L ODDP +odd parity. +If both +.L EVENP +and +.L ODDP +are set, +or if both are clear, +even parity is generated +and any parity is accepted. +.PP +For DZ11 lines, +1200 baud +and 8-bit mode are the defaults. +The transmit and receive speeds are the same; +.B ospeed +is ignored. +.SH SEE ALSO +.IR ioctl (2), +.IR ttyld (4) +.SH BUGS +Every hardware interface doesn't support every operation. |