<!DOCTYPE html>
<html lang="en" data-content_root="../">
<head>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" /><meta name="viewport" content="width=device-width, initial-scale=1" />
<title>PCMCIA Driver — The Linux Kernel documentation</title>
<link rel="stylesheet" type="text/css" href="../_static/pygments.css?v=fa44fd50" />
<link rel="stylesheet" type="text/css" href="../_static/alabaster.css?v=3918102e" />
<script src="../_static/documentation_options.js?v=5929fcd5"></script>
<script src="../_static/doctools.js?v=9bcbadda"></script>
<script src="../_static/sphinx_highlight.js?v=dc90522c"></script>
<link rel="index" title="Index" href="../genindex.html" />
<link rel="search" title="Search" href="../search.html" />
<link rel="next" title="Device table" href="devicetable.html" />
<link rel="prev" title="PCMCIA" href="index.html" />
<link rel="stylesheet" href="../_static/custom.css" type="text/css" />
</head><body>
<div class="document">
<div class="sphinxsidebar" role="navigation" aria-label="Main">
<div class="sphinxsidebarwrapper">
<p class="logo"><a href="../index.html">
<img class="logo" src="../_static/logo.svg" alt="Logo of The Linux Kernel"/>
</a></p>
<h1 class="logo"><a href="../index.html">The Linux Kernel</a></h1>
<p class="blurb">6.18.50</p>
<search id="searchbox" style="display: none" role="search">
<h3 id="searchlabel">Quick search</h3>
<div class="searchformwrapper">
<form class="search" action="../search.html" method="get">
<input type="text" name="q" aria-labelledby="searchlabel" autocomplete="off" autocorrect="off" autocapitalize="off" spellcheck="false"/>
<input type="submit" value="Go" />
</form>
</div>
</search>
<script>document.getElementById('searchbox').style.display = "block"</script>
<p>
<h3 class="kernel-toc-contents">Contents</h3>
<input type="checkbox" class="kernel-toc-toggle" id = "kernel-toc-toggle" checked>
<label class="kernel-toc-title" for="kernel-toc-toggle"></label>
<div class="kerneltoc" id="kerneltoc">
<ul>
<li class="toctree-l1"><a class="reference internal" href="../process/development-process.html">Development process</a></li>
<li class="toctree-l1"><a class="reference internal" href="../process/submitting-patches.html">Submitting patches</a></li>
<li class="toctree-l1"><a class="reference internal" href="../process/code-of-conduct.html">Code of conduct</a></li>
<li class="toctree-l1"><a class="reference internal" href="../maintainer/index.html">Maintainer handbook</a></li>
<li class="toctree-l1"><a class="reference internal" href="../process/index.html">All development-process docs</a></li>
</ul>
<ul class="current">
<li class="toctree-l1"><a class="reference internal" href="../core-api/index.html">Core API</a></li>
<li class="toctree-l1"><a class="reference internal" href="../driver-api/index.html">Driver APIs</a></li>
<li class="toctree-l1 current"><a class="reference internal" href="../subsystem-apis.html">Subsystems</a><ul class="current">
<li class="toctree-l2"><a class="reference internal" href="../subsystem-apis.html#core-subsystems">Core subsystems</a></li>
<li class="toctree-l2"><a class="reference internal" href="../subsystem-apis.html#human-interfaces">Human interfaces</a></li>
<li class="toctree-l2"><a class="reference internal" href="../subsystem-apis.html#networking-interfaces">Networking interfaces</a></li>
<li class="toctree-l2"><a class="reference internal" href="../subsystem-apis.html#storage-interfaces">Storage interfaces</a></li>
<li class="toctree-l2 current"><a class="reference internal" href="../subsystem-apis.html#other-subsystems">Other subsystems</a><ul class="current">
<li class="toctree-l3"><a class="reference internal" href="../accounting/index.html">Accounting</a></li>
<li class="toctree-l3"><a class="reference internal" href="../cpu-freq/index.html">CPUFreq - CPU frequency and voltage scaling code in the Linux(TM) kernel</a></li>
<li class="toctree-l3"><a class="reference internal" href="../edac/index.html">EDAC Subsystem</a></li>
<li class="toctree-l3"><a class="reference internal" href="../fpga/index.html">FPGA</a></li>
<li class="toctree-l3"><a class="reference internal" href="../i2c/index.html">I2C/SMBus Subsystem</a></li>
<li class="toctree-l3"><a class="reference internal" href="../iio/index.html">Industrial I/O</a></li>
<li class="toctree-l3 current"><a class="reference internal" href="index.html">PCMCIA</a></li>
<li class="toctree-l3"><a class="reference internal" href="../spi/index.html">Serial Peripheral Interface (SPI)</a></li>
<li class="toctree-l3"><a class="reference internal" href="../w1/index.html">1-Wire Subsystem</a></li>
<li class="toctree-l3"><a class="reference internal" href="../watchdog/index.html">Watchdog Support</a></li>
<li class="toctree-l3"><a class="reference internal" href="../virt/index.html">Virtualization Support</a></li>
<li class="toctree-l3"><a class="reference internal" href="../hwmon/index.html">Hardware Monitoring</a></li>
<li class="toctree-l3"><a class="reference internal" href="../accel/index.html">Compute Accelerators</a></li>
<li class="toctree-l3"><a class="reference internal" href="../security/index.html">Security Documentation</a></li>
<li class="toctree-l3"><a class="reference internal" href="../crypto/index.html">Crypto API</a></li>
<li class="toctree-l3"><a class="reference internal" href="../bpf/index.html">BPF Documentation</a></li>
<li class="toctree-l3"><a class="reference internal" href="../usb/index.html">USB support</a></li>
<li class="toctree-l3"><a class="reference internal" href="../PCI/index.html">PCI Bus Subsystem</a></li>
<li class="toctree-l3"><a class="reference internal" href="../misc-devices/index.html">Assorted Miscellaneous Devices Documentation</a></li>
<li class="toctree-l3"><a class="reference internal" href="../peci/index.html">PECI Subsystem</a></li>
<li class="toctree-l3"><a class="reference internal" href="../wmi/index.html">WMI Subsystem</a></li>
<li class="toctree-l3"><a class="reference internal" href="../tee/index.html">TEE Subsystem</a></li>
</ul>
</li>
</ul>
</li>
<li class="toctree-l1"><a class="reference internal" href="../locking/index.html">Locking</a></li>
</ul>
<ul>
<li class="toctree-l1"><a class="reference internal" href="../process/license-rules.html">Licensing rules</a></li>
<li class="toctree-l1"><a class="reference internal" href="../doc-guide/index.html">Writing documentation</a></li>
<li class="toctree-l1"><a class="reference internal" href="../dev-tools/index.html">Development tools</a></li>
<li class="toctree-l1"><a class="reference internal" href="../dev-tools/testing-overview.html">Testing guide</a></li>
<li class="toctree-l1"><a class="reference internal" href="../kernel-hacking/index.html">Hacking guide</a></li>
<li class="toctree-l1"><a class="reference internal" href="../trace/index.html">Tracing</a></li>
<li class="toctree-l1"><a class="reference internal" href="../fault-injection/index.html">Fault injection</a></li>
<li class="toctree-l1"><a class="reference internal" href="../livepatch/index.html">Livepatching</a></li>
<li class="toctree-l1"><a class="reference internal" href="../rust/index.html">Rust</a></li>
</ul>
<ul>
<li class="toctree-l1"><a class="reference internal" href="../admin-guide/index.html">Administration</a></li>
<li class="toctree-l1"><a class="reference internal" href="../kbuild/index.html">Build system</a></li>
<li class="toctree-l1"><a class="reference internal" href="../admin-guide/reporting-issues.html">Reporting issues</a></li>
<li class="toctree-l1"><a class="reference internal" href="../tools/index.html">Userspace tools</a></li>
<li class="toctree-l1"><a class="reference internal" href="../userspace-api/index.html">Userspace API</a></li>
</ul>
<ul>
<li class="toctree-l1"><a class="reference internal" href="../firmware-guide/index.html">Firmware</a></li>
<li class="toctree-l1"><a class="reference internal" href="../devicetree/index.html">Firmware and Devicetree</a></li>
</ul>
<ul>
<li class="toctree-l1"><a class="reference internal" href="../arch/index.html">CPU architectures</a></li>
</ul>
<ul>
<li class="toctree-l1"><a class="reference internal" href="../staging/index.html">Unsorted documentation</a></li>
</ul>
<ul>
<li class="toctree-l1"><a class="reference internal" href="../translations/index.html">Translations</a></li>
</ul>
</div>
<script type="text/javascript"> <!--
var sbar = document.getElementsByClassName("sphinxsidebar")[0];
let currents = document.getElementsByClassName("current")
if (currents.length) {
sbar.scrollTop = currents[currents.length - 1].offsetTop;
}
--> </script>
<div role="note" aria-label="source link">
<h3>This Page</h3>
<ul class="this-page-menu">
<li><a href="../_sources/pcmcia/driver.rst.txt"
rel="nofollow">Show Source</a></li>
</ul>
</div>
</div>
</div>
<div class="documentwrapper">
<div class="bodywrapper">
<div class="body" role="main">
<section id="pcmcia-driver">
<h1>PCMCIA Driver<a class="headerlink" href="#pcmcia-driver" title="Link to this heading">¶</a></h1>
<section id="sysfs">
<h2>sysfs<a class="headerlink" href="#sysfs" title="Link to this heading">¶</a></h2>
<p>New PCMCIA IDs may be added to a device driver pcmcia_device_id table at
runtime as shown below:</p>
<div class="highlight-none notranslate"><div class="highlight"><pre><span></span>echo "match_flags manf_id card_id func_id function device_no \
prod_id_hash[0] prod_id_hash[1] prod_id_hash[2] prod_id_hash[3]" > \
/sys/bus/pcmcia/drivers/{driver}/new_id
</pre></div>
</div>
<p>All fields are passed in as hexadecimal values (no leading 0x).
The meaning is described in the PCMCIA specification, the match_flags is
a bitwise or-ed combination from PCMCIA_DEV_ID_MATCH_* constants
defined in include/linux/mod_devicetable.h.</p>
<p>Once added, the driver probe routine will be invoked for any unclaimed
PCMCIA device listed in its (newly updated) pcmcia_device_id list.</p>
<p>A common use-case is to add a new device according to the manufacturer ID
and the card ID (form the manf_id and card_id file in the device tree).
For this, just use:</p>
<div class="highlight-none notranslate"><div class="highlight"><pre><span></span>echo "0x3 manf_id card_id 0 0 0 0 0 0 0" > \
/sys/bus/pcmcia/drivers/{driver}/new_id
</pre></div>
</div>
<p>after loading the driver.</p>
</section>
</section>
</div>
</div>
</div>
<div class="clearer"></div>
</div>
<div class="footer">
©The kernel development community.
|
Powered by <a href="https://www.sphinx-doc.org/">Sphinx 8.1.3</a>
& <a href="https://alabaster.readthedocs.io">Alabaster 0.7.16</a>
|
<a href="../_sources/pcmcia/driver.rst.txt"
rel="nofollow">Page source</a>
</div>
</body>
</html>