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##这里主要是driver端

在drivers/net/phy里面针对某一品牌的网络交换设备有一个文件 例如 smsc ,有一个smsc.c

该品牌有多个设备.每个设备对应一个结构体,因此组成了一个结构体数组

数组元素类型 : struct phy_driver

数组元素举例

{
   	.phy_id		= 0x0007c0f0, /* OUI=0x00800f, Model#=0x0f */	.phy_id_mask	= 0xfffffff0,	.name		= "SMSC LAN8710/LAN8720",		.features	= (PHY_BASIC_FEATURES | SUPPORTED_Pause				| SUPPORTED_Asym_Pause),	.flags		= PHY_HAS_INTERRUPT | PHY_HAS_MAGICANEG,		/* basic functions */	.config_aneg	= genphy_config_aneg,	.read_status	= lan87xx_read_status,	.config_init	= smsc_phy_config_init,		/* IRQ related */	.ack_interrupt	= smsc_phy_ack_interrupt,	.config_intr	= smsc_phy_config_intr,		.suspend	= genphy_suspend,	.resume		= genphy_resume,		.driver		= {
    .owner = THIS_MODULE, }}

针对数组中的每个元素都会注册一次

每个设备的注册流程

1/填充数组元素中的driver结构体(类型struct device_driver)

new_driver->driver.name = new_driver->name;	new_driver->driver.bus = &mdio_bus_type;	new_driver->driver.probe = phy_probe;	new_driver->driver.remove = phy_remove;

---

参数说明

1/

new_driver->name ="SMSC LAN911x Internal PHY";

2/

struct bus_type mdio_bus_type = {
   	.name		= "mdio_bus",	.match		= mdio_bus_match,	.pm		= MDIO_BUS_PM_OPS,	.dev_attrs	= mdio_dev_attrs,};

3/

phy_probe 一品牌的设备共用一个 4/ phy_remove 一品牌的设备公用一个

---

2/注册

driver_register(&new_driver->driver);

---

配置内核

Device Drivers  --->	[*] Network device support  --->		<*>   PHY Device support and infrastructure  --->			< >   Drivers for SMSC PHYs

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注意,最后匹配的并不是 phy_driver 和 phy_device

而是phy_driver中的driver和phy_device匹配

转载地址：http://nvigi.baihongyu.com/