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<html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=ANSI_X3.4-1968" /><title>bitmap_parselist</title><meta name="generator" content="DocBook XSL Stylesheets V1.75.2" /><link rel="home" href="index.html" title="The Linux Kernel API" /><link rel="up" href="ch03.html#id2630756" title="Bitmap Operations" /><link rel="prev" href="re108.html" title="bitmap_scnlistprintf" /><link rel="next" href="re110.html" title="bitmap_remap" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center"><span>bitmap_parselist</span></th></tr><tr><td width="20%" align="left"><a accesskey="p" href="re108.html">Prev</a> </td><th width="60%" align="center">Bitmap Operations</th><td width="20%" align="right"> <a accesskey="n" href="re110.html">Next</a></td></tr></table><hr /></div><div class="refentry" title="bitmap_parselist"><a id="API-bitmap-parselist"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>bitmap_parselist —
convert list format ASCII string to bitmap
</p></div><div class="refsynopsisdiv" title="Synopsis"><h2>Synopsis</h2><div class="funcsynopsis"><table border="0" summary="Function synopsis" cellspacing="0" cellpadding="0" class="funcprototype-table"><tr><td><code class="funcdef">int <b class="fsfunc">bitmap_parselist </b>(</code></td><td>const char * <var class="pdparam">bp</var>, </td></tr><tr><td> </td><td>unsigned long * <var class="pdparam">maskp</var>, </td></tr><tr><td> </td><td>int <var class="pdparam">nmaskbits</var><code>)</code>;</td></tr></table><div class="funcprototype-spacer"> </div></div></div><div class="refsect1" title="Arguments"><a id="id2632038"></a><h2>Arguments</h2><div class="variablelist"><dl><dt><span class="term"><em class="parameter"><code>bp</code></em></span></dt><dd><p>
read nul-terminated user string from this buffer
</p></dd><dt><span class="term"><em class="parameter"><code>maskp</code></em></span></dt><dd><p>
write resulting mask here
</p></dd><dt><span class="term"><em class="parameter"><code>nmaskbits</code></em></span></dt><dd><p>
number of bits in mask to be written
</p></dd></dl></div></div><div class="refsect1" title="Description"><a id="id2632100"></a><h2>Description</h2><p>
Input format is a comma-separated list of decimal numbers and
ranges. Consecutively set bits are shown as two hyphen-separated
decimal numbers, the smallest and largest bit numbers set in
the range.
</p><p>
Returns 0 on success, -errno on invalid input strings.
</p></div><div class="refsect1" title="Error values"><a id="id2632117"></a><h2>Error values</h2><p>
<code class="constant">-EINVAL</code>: second number in range smaller than first
<code class="constant">-EINVAL</code>: invalid character in string
<code class="constant">-ERANGE</code>: bit number specified too large for mask
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