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termios.3: ffix
Format variable parts of words referring to a group of identifiers in italics, following groff_man(7) recommendations. Also srcfix surrounding uses of \f escape sequences to use macros Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com> Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
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@ -960,28 +960,38 @@ to by \fItermios_p\fP to \fIspeed\fP, which must be one of these constants:
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.ft P
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.fi
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.PP
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The zero baud rate, \fBB0\fP,
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The zero baud rate,
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.BR B0 ,
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is used to terminate the connection.
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If B0 is specified, the modem control lines shall no longer be asserted.
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Normally, this will disconnect the line.
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\fBCBAUDEX\fP is a mask
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.B CBAUDEX
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is a mask
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for the speeds beyond those defined in POSIX.1 (57600 and above).
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Thus, \fBB57600\fP & \fBCBAUDEX\fP is nonzero.
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Thus,
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.BR B57600 " & " CBAUDEX
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is nonzero.
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.PP
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Setting the baud rate to a value other than those defined by
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.B Bnnn
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.BI B nnn
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constants is possible via the
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.B TCSETS2
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ioctl; see
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.BR ioctl_tty (2).
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.PP
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.BR cfgetispeed ()
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returns the input baud rate stored in the \fItermios\fP structure.
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returns the input baud rate stored in the
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.I termios
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structure.
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.PP
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.BR cfsetispeed ()
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sets the input baud rate stored in the \fItermios\fP structure to
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sets the input baud rate stored in the
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.I termios
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structure to
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.IR speed ,
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which must be specified as one of the \fBBnnn\fP constants listed above for
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which must be specified as one of the
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.BI B nnn
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constants listed above for
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.BR cfsetospeed ().
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If the input baud rate is set to zero, the input baud rate will be
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equal to the output baud rate.
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