1<html><head><meta http-equiv="Content-Type" content="text/html; charset=ANSI_X3.4-1968"><title>Chapter 3. Parallel Port Devices</title><meta name="generator" content="DocBook XSL Stylesheets V1.78.1"><link rel="home" href="index.html" title="Linux Device Drivers"><link rel="up" href="index.html" title="Linux Device Drivers"><link rel="prev" href="API-struct-uio-info.html" title="struct uio_info"><link rel="next" href="API-parport-yield.html" title="parport_yield"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Chapter 3. Parallel Port Devices</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="API-struct-uio-info.html">Prev</a> </td><th width="60%" align="center"> </th><td width="20%" align="right"> <a accesskey="n" href="API-parport-yield.html">Next</a></td></tr></table><hr></div><div class="chapter"><div class="titlepage"><div><div><h1 class="title"><a name="parportdev"></a>Chapter 3. Parallel Port Devices</h1></div></div></div><div class="toc"><p><b>Table of Contents</b></p><dl class="toc"><dt><span class="refentrytitle"><a href="API-parport-yield.html"><span class="phrase">parport_yield</span></a></span><span class="refpurpose"> — 2 relinquish a parallel port temporarily 3 </span></dt><dt><span class="refentrytitle"><a href="API-parport-yield-blocking.html"><span class="phrase">parport_yield_blocking</span></a></span><span class="refpurpose"> — 4 relinquish a parallel port temporarily 5 </span></dt><dt><span class="refentrytitle"><a href="API-parport-wait-event.html"><span class="phrase">parport_wait_event</span></a></span><span class="refpurpose"> — 6 wait for an event on a parallel port 7 </span></dt><dt><span class="refentrytitle"><a href="API-parport-wait-peripheral.html"><span class="phrase">parport_wait_peripheral</span></a></span><span class="refpurpose"> — 8 wait for status lines to change in 35ms 9 </span></dt><dt><span class="refentrytitle"><a href="API-parport-negotiate.html"><span class="phrase">parport_negotiate</span></a></span><span class="refpurpose"> — 10 negotiate an IEEE 1284 mode 11 </span></dt><dt><span class="refentrytitle"><a href="API-parport-write.html"><span class="phrase">parport_write</span></a></span><span class="refpurpose"> — 12 write a block of data to a parallel port 13 </span></dt><dt><span class="refentrytitle"><a href="API-parport-read.html"><span class="phrase">parport_read</span></a></span><span class="refpurpose"> — 14 read a block of data from a parallel port 15 </span></dt><dt><span class="refentrytitle"><a href="API-parport-set-timeout.html"><span class="phrase">parport_set_timeout</span></a></span><span class="refpurpose"> — 16 set the inactivity timeout for a device 17 </span></dt><dt><span class="refentrytitle"><a href="API-parport-register-driver.html"><span class="phrase">parport_register_driver</span></a></span><span class="refpurpose"> — 18 register a parallel port device driver 19 </span></dt><dt><span class="refentrytitle"><a href="API-parport-unregister-driver.html"><span class="phrase">parport_unregister_driver</span></a></span><span class="refpurpose"> — 20 deregister a parallel port device driver 21 </span></dt><dt><span class="refentrytitle"><a href="API-parport-get-port.html"><span class="phrase">parport_get_port</span></a></span><span class="refpurpose"> — 22 increment a port's reference count 23 </span></dt><dt><span class="refentrytitle"><a href="API-parport-put-port.html"><span class="phrase">parport_put_port</span></a></span><span class="refpurpose"> — 24 decrement a port's reference count 25 </span></dt><dt><span class="refentrytitle"><a href="API-parport-register-port.html"><span class="phrase">parport_register_port</span></a></span><span class="refpurpose"> — 26 register a parallel port 27 </span></dt><dt><span class="refentrytitle"><a href="API-parport-announce-port.html"><span class="phrase">parport_announce_port</span></a></span><span class="refpurpose"> — 28 tell device drivers about a parallel port 29 </span></dt><dt><span class="refentrytitle"><a href="API-parport-remove-port.html"><span class="phrase">parport_remove_port</span></a></span><span class="refpurpose"> — 30 deregister a parallel port 31 </span></dt><dt><span class="refentrytitle"><a href="API-parport-register-device.html"><span class="phrase">parport_register_device</span></a></span><span class="refpurpose"> — 32 register a device on a parallel port 33 </span></dt><dt><span class="refentrytitle"><a href="API-parport-unregister-device.html"><span class="phrase">parport_unregister_device</span></a></span><span class="refpurpose"> — 34 deregister a device on a parallel port 35 </span></dt><dt><span class="refentrytitle"><a href="API-parport-find-number.html"><span class="phrase">parport_find_number</span></a></span><span class="refpurpose"> — 36 find a parallel port by number 37 </span></dt><dt><span class="refentrytitle"><a href="API-parport-find-base.html"><span class="phrase">parport_find_base</span></a></span><span class="refpurpose"> — 38 find a parallel port by base address 39 </span></dt><dt><span class="refentrytitle"><a href="API-parport-claim.html"><span class="phrase">parport_claim</span></a></span><span class="refpurpose"> — 40 claim access to a parallel port device 41 </span></dt><dt><span class="refentrytitle"><a href="API-parport-claim-or-block.html"><span class="phrase">parport_claim_or_block</span></a></span><span class="refpurpose"> — 42 claim access to a parallel port device 43 </span></dt><dt><span class="refentrytitle"><a href="API-parport-release.html"><span class="phrase">parport_release</span></a></span><span class="refpurpose"> — 44 give up access to a parallel port device 45 </span></dt><dt><span class="refentrytitle"><a href="API-parport-open.html"><span class="phrase">parport_open</span></a></span><span class="refpurpose"> — 46 find a device by canonical device number 47 </span></dt><dt><span class="refentrytitle"><a href="API-parport-close.html"><span class="phrase">parport_close</span></a></span><span class="refpurpose"> — 48 close a device opened with <code class="function">parport_open</code> 49 </span></dt></dl></div></div><div class="navfooter"><hr><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="API-struct-uio-info.html">Prev</a> </td><td width="20%" align="center"> </td><td width="40%" align="right"> <a accesskey="n" href="API-parport-yield.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top"><span class="phrase">struct uio_info</span> </td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right" valign="top"> <span class="phrase">parport_yield</span></td></tr></table></div></body></html> 50