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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN"><html><head><!-- Copyright 1997 The Open Group, All Rights Reserved --><title>cfsetispeed</title></head><body bgcolor=white><center><font size=2>The Single UNIX ® Specification, Version 2<br>Copyright © 1997 The Open Group</font></center><hr size=2 noshade><h4><a name = "tag_000_001_413"> </a>NAME</h4><blockquote>cfsetispeed - set input baud rate</blockquote><h4><a name = "tag_000_001_414"> </a>SYNOPSIS</h4><blockquote><pre><code>#include <<a href="termios.h.html">termios.h</a>>int cfsetispeed(struct termios *<i>termios_p</i>, speed_t <i>speed</i>);</code></pre></blockquote><h4><a name = "tag_000_001_415"> </a>DESCRIPTION</h4><blockquote>The<i>cfsetispeed()</i>function sets the input baud rate stored in the structure pointed to by<i>termios_p</i>to<i>speed.</i><p>There is no effect on the baud rates set in the hardware until asubsequent successful call to<i><a href="tcsetattr.html">tcsetattr()</a></i>on the same<b>termios</b>structure.</blockquote><h4><a name = "tag_000_001_416"> </a>RETURN VALUE</h4><blockquote>Upon successful completion,<i>cfsetispeed()</i>returns 0. Otherwise -1 is returned, and<i>errno</i>may be set to indicate the error.</blockquote><h4><a name = "tag_000_001_417"> </a>ERRORS</h4><blockquote>The<i>cfsetispeed()</i>function may fail if:<br><dl compact><dt>[EINVAL]<dd>The<i>speed</i>value is not a valid baud rate.<dt>[EINVAL]<dd>The value of <i>speed</i> is outside the range of possiblespeed values as specified in<i><a href="termios.h.html"><termios.h></a></i>.</dl></blockquote><h4><a name = "tag_000_001_418"> </a>EXAMPLES</h4><blockquote>None.</blockquote><h4><a name = "tag_000_001_419"> </a>APPLICATION USAGE</h4><blockquote>None.</blockquote><h4><a name = "tag_000_001_420"> </a>FUTURE DIRECTIONS</h4><blockquote>None.</blockquote><h4><a name = "tag_000_001_421"> </a>SEE ALSO</h4><blockquote><i><a href="cfgetispeed.html">cfgetispeed()</a></i>,<i><a href="cfgetospeed.html">cfgetospeed()</a></i>,<i><a href="cfsetospeed.html">cfsetospeed()</a></i>,<i><a href="tcsetattr.html">tcsetattr()</a></i>,<i><a href="termios.h.html"><termios.h></a></i>,the <b>XBD</b> specification, <a href="../xbd/termios.html"><b>General Terminal Interface</b> </a>.</blockquote><h4>DERIVATION</h4><blockquote>Derived from the POSIX.1-1988 standard.</blockquote><hr size=2 noshade><center><font size=2>UNIX ® is a registered Trademark of The Open Group.<br>Copyright © 1997 The Open Group<br> [ <a href="../index.html">Main Index</a> | <a href="../xshix.html">XSH</a> | <a href="../xcuix.html">XCU</a> | <a href="../xbdix.html">XBD</a> | <a href="../cursesix.html">XCURSES</a> | <a href="../xnsix.html">XNS</a> ]</font></center><hr size=2 noshade></body></html>⌨️ 快捷键说明
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