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<!-- Copyright (C) 2003 Red Hat, Inc. --> <!-- This material may be distributed only subject to the terms --> <!-- and conditions set forth in the Open Publication License, v1.0 --> <!-- or later (the latest version is presently available at --> <!-- http://www.opencontent.org/openpub/). --> <!-- Distribution of the work or derivative of the work in any --> <!-- standard (paper) book form is prohibited unless prior --> <!-- permission is obtained from the copyright holder. --> <HTML ><HEAD ><TITLE >Device and Class Specific Functions [POSIX Section 7]</TITLE ><meta name="MSSmartTagsPreventParsing" content="TRUE"> <META NAME="GENERATOR" CONTENT="Modular DocBook HTML Stylesheet Version 1.76b+ "><LINK REL="HOME" TITLE="eCos Reference Manual" HREF="ecos-ref.html"><LINK REL="UP" TITLE="POSIX Standard Support" HREF="posix-standard-support.html"><LINK REL="PREVIOUS" TITLE="Input and Output [POSIX Section 6]" HREF="posix-input-and-output.html"><LINK REL="NEXT" TITLE="C Language Services [POSIX Section 8]" HREF="posix-c-language-services.html"></HEAD ><BODY CLASS="SECT1" BGCOLOR="#FFFFFF" TEXT="#000000" LINK="#0000FF" VLINK="#840084" ALINK="#0000FF" ><DIV CLASS="NAVHEADER" ><TABLE SUMMARY="Header navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TH COLSPAN="3" ALIGN="center" >eCos Reference Manual</TH ></TR ><TR ><TD WIDTH="10%" ALIGN="left" VALIGN="bottom" ><A HREF="posix-input-and-output.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="80%" ALIGN="center" VALIGN="bottom" >Chapter 31. POSIX Standard Support</TD ><TD WIDTH="10%" ALIGN="right" VALIGN="bottom" ><A HREF="posix-c-language-services.html" ACCESSKEY="N" >Next</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><DIV CLASS="SECT1" ><H1 CLASS="SECT1" ><A NAME="POSIX-DEVICE-AND-CLASS-SPECIFIC-FUNCTIONS">Device and Class Specific Functions [POSIX Section 7]</H1 ><DIV CLASS="SECT2" ><H2 CLASS="SECT2" ><A NAME="AEN13079">Functions Implemented</H2 ><TABLE BORDER="5" BGCOLOR="#E0E0F0" WIDTH="70%" ><TR ><TD ><PRE CLASS="SCREEN" >speed_t cfgetospeed( const struct termios *termios_p ); int cfsetospeed( struct termios *termios_p, speed_t speed ); speed_t cfgetispeed( const struct termios *termios_p ); int cfsetispeed( struct termios *termios_p, speed_t speed ); int tcgetattr( int fd, struct termios *termios_p ); int tcsetattr( int fd, int optional_actions, const struct termios *termios_p ); int tcsendbreak( int fd, int duration ); int tcdrain( int fd ); int tcflush( int fd, int queue_selector ); int tcsendbreak( int fd, int action );</PRE ></TD ></TR ></TABLE ></DIV ><DIV CLASS="SECT2" ><H2 CLASS="SECT2" ><A NAME="AEN13082">Functions Omitted</H2 ><TABLE BORDER="5" BGCOLOR="#E0E0F0" WIDTH="70%" ><TR ><TD ><PRE CLASS="SCREEN" >pid_t tcgetpgrp( int fd ); int tcsetpgrp( int fd, pid_t pgrp );</PRE ></TD ></TR ></TABLE ></DIV ><DIV CLASS="SECT2" ><H2 CLASS="SECT2" ><A NAME="AEN13085">Notes</H2 ><P ></P ><UL ><LI ><P > Only the functionality relevant to basic serial device control is implemented. Only very limited support for canonical input is provided, and then only via the “tty” devices, not the “serial” devices. None of the functionality relevant to job control, controlling terminals and sessions is implemented. </P ></LI ><LI ><P > Only <SPAN CLASS="emphasis" ><I CLASS="EMPHASIS" >MIN</I ></SPAN > = 0 and <SPAN CLASS="emphasis" ><I CLASS="EMPHASIS" >TIME</I ></SPAN > = 0 functionality is provided. </P ></LI ><LI ><P > Hardware flow control is supported if the underlying device driver and serial port support it. </P ></LI ><LI ><P > Support for break, framing and parity errors depends on the functionality of the hardware and device driver. </P ></LI ></UL ></DIV ></DIV ><DIV CLASS="NAVFOOTER" ><HR ALIGN="LEFT" WIDTH="100%"><TABLE SUMMARY="Footer navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" ><A HREF="posix-input-and-output.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="ecos-ref.html" ACCESSKEY="H" >Home</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" ><A HREF="posix-c-language-services.html" ACCESSKEY="N" >Next</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >Input and Output [POSIX Section 6]</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="posix-standard-support.html" ACCESSKEY="U" >Up</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >C Language Services [POSIX Section 8]</TD ></TR ></TABLE ></DIV ></BODY ></HTML >