<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN">
<HTML
><HEAD
><TITLE
>Basic C Library Functions</TITLE
><META
NAME="GENERATOR"
CONTENT="Modular DocBook HTML Stylesheet Version 1.7"><LINK
REL="HOME"
TITLE="The Linux Kernel API"
HREF="book1.html"><LINK
REL="PREVIOUS"
TITLE="list_for_each_prev"
HREF="r794.html"><LINK
REL="NEXT"
TITLE="simple_strtoll"
HREF="r829.html"></HEAD
><BODY
CLASS="CHAPTER"
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"
>The Linux Kernel API</TH
></TR
><TR
><TD
WIDTH="10%"
ALIGN="left"
VALIGN="bottom"
><A
HREF="r794.html"
ACCESSKEY="P"
><<< Previous</A
></TD
><TD
WIDTH="80%"
ALIGN="center"
VALIGN="bottom"
></TD
><TD
WIDTH="10%"
ALIGN="right"
VALIGN="bottom"
><A
HREF="r829.html"
ACCESSKEY="N"
>Next >>></A
></TD
></TR
></TABLE
><HR
ALIGN="LEFT"
WIDTH="100%"></DIV
><DIV
CLASS="CHAPTER"
><H1
><A
NAME="LIBC"
></A
>Basic C Library Functions</H1
><P
> When writing drivers, you cannot in general use routines which are
from the C Library. Some of the functions have been found generally
useful and they are listed below. The behaviour of these functions
may vary slightly from those defined by ANSI, and these deviations
are noted in the text.
</P
><DIV
CLASS="SECT1"
><H1
CLASS="SECT1"
><A
NAME="AEN827"
></A
>String Conversions</H1
><DIV
CLASS="TOC"
><DL
><DT
><B
>Table of Contents</B
></DT
><DT
><A
HREF="r829.html"
><SPAN
CLASS="phrase"
><SPAN
CLASS="PHRASE"
>simple_strtoll</SPAN
></SPAN
></A
> -- convert a string to a signed long long
</DT
><DT
><A
HREF="r866.html"
><SPAN
CLASS="phrase"
><SPAN
CLASS="PHRASE"
>simple_strtoul</SPAN
></SPAN
></A
> -- convert a string to an unsigned long
</DT
><DT
><A
HREF="r903.html"
><SPAN
CLASS="phrase"
><SPAN
CLASS="PHRASE"
>simple_strtol</SPAN
></SPAN
></A
> -- convert a string to a signed long
</DT
><DT
><A
HREF="r940.html"
><SPAN
CLASS="phrase"
><SPAN
CLASS="PHRASE"
>simple_strtoull</SPAN
></SPAN
></A
> -- convert a string to an unsigned long long
</DT
><DT
><A
HREF="r977.html"
><SPAN
CLASS="phrase"
><SPAN
CLASS="PHRASE"
>vsnprintf</SPAN
></SPAN
></A
> -- Format a string and place it in a buffer
</DT
><DT
><A
HREF="r1024.html"
><SPAN
CLASS="phrase"
><SPAN
CLASS="PHRASE"
>snprintf</SPAN
></SPAN
></A
> -- Format a string and place it in a buffer
</DT
><DT
><A
HREF="r1068.html"
><SPAN
CLASS="phrase"
><SPAN
CLASS="PHRASE"
>vsprintf</SPAN
></SPAN
></A
> -- Format a string and place it in a buffer
</DT
><DT
><A
HREF="r1108.html"
><SPAN
CLASS="phrase"
><SPAN
CLASS="PHRASE"
>sprintf</SPAN
></SPAN
></A
> -- Format a string and place it in a buffer
</DT
><DT
><A
HREF="r1145.html"
><SPAN
CLASS="phrase"
><SPAN
CLASS="PHRASE"
>vsscanf</SPAN
></SPAN
></A
> -- Unformat a buffer into a list of arguments
</DT
><DT
><A
HREF="r1182.html"
><SPAN
CLASS="phrase"
><SPAN
CLASS="PHRASE"
>sscanf</SPAN
></SPAN
></A
> -- Unformat a buffer into a list of arguments
</DT
></DL
></DIV
></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="r794.html"
ACCESSKEY="P"
><<< Previous</A
></TD
><TD
WIDTH="34%"
ALIGN="center"
VALIGN="top"
><A
HREF="book1.html"
ACCESSKEY="H"
>Home</A
></TD
><TD
WIDTH="33%"
ALIGN="right"
VALIGN="top"
><A
HREF="r829.html"
ACCESSKEY="N"
>Next >>></A
></TD
></TR
><TR
><TD
WIDTH="33%"
ALIGN="left"
VALIGN="top"
><SPAN
CLASS="phrase"
><SPAN
CLASS="PHRASE"
>list_for_each_prev</SPAN
></SPAN
></TD
><TD
WIDTH="34%"
ALIGN="center"
VALIGN="top"
> </TD
><TD
WIDTH="33%"
ALIGN="right"
VALIGN="top"
><SPAN
CLASS="phrase"
><SPAN
CLASS="PHRASE"
>simple_strtoll</SPAN
></SPAN
></TD
></TR
></TABLE
></DIV
></BODY
></HTML
>
