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<html xmlns:cf="http://docbook.sourceforge.net/xmlns/chunkfast/1.0"><head><meta http-equiv="Content-Type" content="text/html; charset=gb2312"><title>12.8. 快速参考-Linux设备驱动第三版（中文版）</title><meta name="description" content="驱动开发" /><meta name="keywords" content="Linux设备驱动,中文版,第三版,ldd,linux device driver,驱动开发,电子版,程序设计,软件开发,开发频道" /><meta name="verify-v1" content="5asbXwkS/Vv5OdJbK3Ix0X8osxBUX9hutPyUxoubhes=" /><link rel="stylesheet" href="docbook.css" type="text/css"><meta name="generator" content="DocBook XSL Stylesheets V1.69.0"><link rel="start" href="index.html" title="Linux 设备驱动 Edition 3"><link rel="up" href="ch12.html" title="第 12 章 PCI 驱动"><link rel="prev" href="ch12s07.html" title="12.7. 外部总线"><link rel="next" href="ch13.html" title="第 13 章 USB 驱动"></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">12.8. 快速参考</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="ch12s07.html">上一页</a> </td><th width="60%" align="center">第 12 章 PCI 驱动</th><td width="20%" align="right"> <a accesskey="n" href="ch13.html">下一页</a></td></tr></table><hr></div><div class="sect1" lang="zh-cn"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="PCIDriversqr.sect1"></a>12.8. 快速参考</h2></div></div></div><p>本节总结在本章中介绍的符号:</p><div class="variablelist"><dl><dt><span class="term"><span>#include <linux/pci.h></span></span></dt><dd><p>包含 PCI 寄存器的符号名和几个供应商和设备 ID 值的头文件.</p></dd><dt><span class="term"><span>struct pci_dev;</span></span></dt><dd><p>表示内核中一个 PCI 设备的结构.</p></dd><dt><span class="term"><span>struct pci_driver;</span></span></dt><dd><p>代表一个 PCI 驱动的结构. 所有的 PCI 驱动必须定义这个.</p></dd><dt><span class="term"><span>struct pci_device_id;</span></span></dt><dd><p>描述这个驱动支持的 PCI 设备类型的结构.</p></dd><dt><span class="term"><span>int pci_register_driver(struct pci_driver *drv);</span></span></dt><dd></dd><dt><span class="term"><span>int pci_module_init(struct pci_driver *drv);</span></span></dt><dd></dd><dt><span class="term"><span>void pci_unregister_driver(struct pci_driver *drv);</span></span></dt><dd><p>从内核注册或注销一个 PCI 驱动的函数.</p></dd><dt><span class="term"><span>struct pci_dev *pci_find_device(unsigned int vendor, unsigned int device, struct pci_dev *from);</span></span></dt><dd></dd><dt><span class="term"><span>struct pci_dev *pci_find_device_reverse(unsigned int vendor, unsigned int device, const struct pci_dev *from);</span></span></dt><dd></dd><dt><span class="term"><span>struct pci_dev *pci_find_subsys (unsigned int vendor, unsigned int device, unsigned int ss_vendor, unsigned int ss_device, const struct pci_dev *from);</span></span></dt><dd></dd><dt><span class="term"><span>struct pci_dev *pci_find_class(unsigned int class, struct pci_dev *from);</span></span></dt><dd><p>在设备列表中搜寻带有一个特定签名的设备, 或者属于一个特定类的. 返回值是 NULL 如果没找到. from 用来继续一个搜索; 在你第一次调用任一个函数时它必须是 NULL, 并且它必须指向刚刚找到的设备如果你寻找更多的设备. 这些函数不推荐使用, 用 pci_get_ 变体来代替.</p></dd><dt><span class="term"><span>struct pci_dev *pci_get_device(unsigned int vendor, unsigned int device, struct pci_dev *from);</span></span></dt><dd></dd><dt><span class="term"><span>struct pci_dev *pci_get_subsys(unsigned int vendor, unsigned int device, unsigned int ss_vendor, unsigned int ss_device, struct pci_dev *from);</span></span></dt><dd></dd><dt><span class="term"><span>struct pci_dev *pci_get_slot(struct pci_bus *bus, unsigned int devfn);</span></span></dt><dd><p>在设备列表中搜索一个特定签名的设备, 或者属于一个特定类. 返回值是 NULL 如果没找到. from 用来继续一个搜索; 在你第一次调用任一个函数时它必须是 NULL, 并且它必须指向刚刚找到的设备如果你寻找更多的设备. 返回的结构使它的引用计数递增, 并且在调用者完成它, 函数 pci_dev_put 必须被调用.</p></dd><dt><span class="term"><span>int pci_read_config_byte(struct pci_dev *dev, int where, u8 *val);</span></span></dt><dd></dd><dt><span class="term"><span>int pci_read_config_word(struct pci_dev *dev, int where, u16 *val);</span></span></dt><dd></dd><dt><span class="term"><span>int pci_read_config_dword(struct pci_dev *dev, int where, u32 *val);</span></span></dt><dd></dd><dt><span class="term"><span>int pci_write_config_byte (struct pci_dev *dev, int where, u8 *val);</span></span></dt><dd></dd><dt><span class="term"><span>int pci_write_config_word (struct pci_dev *dev, int where, u16 *val);</span></span></dt><dd></dd><dt><span class="term"><span>int pci_write_config_dword (struct pci_dev *dev, int where, u32 *val);</span></span></dt><dd><p>读或写 PCI 配置寄存器的函数. 尽管 Linux 内核负责字节序, 程序员必须小心字节序当从单个字节组合多字节值时. PCI 总线是小端.</p></dd><dt><span class="term"><span>int pci_enable_device(struct pci_dev *dev);</span></span></dt><dd><p>使能一个 PCI 设备.</p></dd><dt><span class="term"><span>unsigned long pci_resource_start(struct pci_dev *dev, int bar);</span></span></dt><dd></dd><dt><span class="term"><span>unsigned long pci_resource_end(struct pci_dev *dev, int bar);</span></span></dt><dd></dd><dt><span class="term"><span>unsigned long pci_resource_flags(struct pci_dev *dev, int bar);</span></span></dt><dd><p>处理 PCI 设备资源的函数.</p></dd></dl></div></div><div class="navfooter"><hr><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="ch12s07.html">上一页</a> </td><td width="20%" align="center"><a accesskey="u" href="ch12.html">上一级</a></td><td width="40%" align="right"> <a accesskey="n" href="ch13.html">下一页</a></td></tr><tr><td width="40%" align="left" valign="top">12.7. 外部总线 </td><td width="20%" align="center"><a accesskey="h" href="index.html">起始页</a></td><td width="40%" align="right" valign="top"> 第 13 章 USB 驱动</td></tr></table></div></body></html><div style="display:none"><script language="JavaScript" src="script.js"></script> </div>⌨️ 快捷键说明
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