一、platform_driver
定義在include/linux/platform_device.h中，代碼如下：
1 struct platform_driver {
2 int (*probe)(struct platform_device *);
3 int (*remove)(struct platform_device *);
4 void (*shutdown)(struct platform_device *);
5 int (*suspend)(struct platform_device *, pm_message_t state);
6 int (*resume)(struct platform_device *);
7 struct device_driver driver;
8 const struct platform_device_id *id_table;
9 };
dm9000.c中的初始化：
1 static struct platform_driver dm9000_driver = {
2 .driver = {
3 .name = "dm9000",
4 .owner = THIS_MODULE,
5 .pm = &dm9000_drv_pm_ops,
6 },
7 .probe = dm9000_probe,
8 .remove = __devexit_p(dm9000_drv_remove),
9 };
二、net_device_ops
操作網絡設備的函數，定義在include/linux/netdevice.h中，它有很多成員，這裏只列出dm9000驅動用到的：
1 static const struct net_device_ops dm9000_netdev_ops = {
2 .ndo_open = dm9000_open,
3 .ndo_stop = dm9000_stop,
4 .ndo_start_xmit = dm9000_start_xmit,
5 .ndo_tx_timeout = dm9000_timeout,
6 .ndo_set_multicast_list = dm9000_hash_table,
7 .ndo_do_ioctl = dm9000_ioctl,
8 .ndo_change_mtu = eth_change_mtu,
9 .ndo_validate_addr = eth_validate_addr,
10 .ndo_set_mac_address = eth_mac_addr,
11 #ifdef CONFIG_NET_POLL_CONTROLLER
12 .ndo_poll_controller = dm9000_poll_controller,
13 #endif
14 };
三、ethtool_ops
ethtool_ops定義在include/linux/ethtool.h中，它有很多成員，這裏只列出dm9000驅動用到的：
1 static const struct ethtool_ops dm9000_ethtool_ops = {
2 .get_drvinfo = dm9000_get_drvinfo,
3 .get_settings = dm9000_get_settings,
4 .set_settings = dm9000_set_settings,
5 .get_msglevel = dm9000_get_msglevel,
6 .set_msglevel = dm9000_set_msglevel,
7 .nway_reset = dm9000_nway_reset,
8 .get_link = dm9000_get_link,
9 .get_wol = dm9000_get_wol,
10 .set_wol = dm9000_set_wol,
11 .get_eeprom_len = dm9000_get_eeprom_len,
12 .get_eeprom = dm9000_get_eeprom,
13 .set_eeprom = dm9000_set_eeprom,
14 .get_rx_csum = dm9000_get_rx_csum,
15 .set_rx_csum = dm9000_set_rx_csum,
16 .get_tx_csum = ethtool_op_get_tx_csum,
17 .set_tx_csum = dm9000_set_tx_csum,
18 };四、board_info
用來保存芯片相關的一些信息。
1 /* Structure/enum declaration ------------------------------- */
2 typedef struct board_info {
3
4 void __iomem *io_addr; /* Register I/O base address */
5 void __iomem *io_data; /* Data I/O address */
6 u16 irq; /* IRQ */
7
8 u16 tx_pkt_cnt;
9 u16 queue_pkt_len;
10 u16 queue_start_addr;
11 u16 queue_ip_summed;
12 u16 dbug_cnt;
13 u8 io_mode; /* 0:word, 2:byte */
14 u8 phy_addr;
15 u8 imr_all;
16
17 unsigned int flags;
18 unsigned int in_suspend :1;
19 unsigned int wake_supported :1;
20 int debug_level;
21
22 enum dm9000_type type;
23
24 void (*inblk)(void __iomem *port, void *data, int length);
25 void (*outblk)(void __iomem *port, void *data, int length);
26 void (*dumpblk)(void __iomem *port, int length);
27
28 struct device *dev; /* parent device */
29
30 struct resource *addr_res; /* resources found */
31 struct resource *data_res;
32 struct resource *addr_req; /* resources requested */
33 struct resource *data_req;
34 struct resource *irq_res;
35
36 int irq_wake;
37
38 struct mutex addr_lock; /* phy and eeprom access lock */
39
40 struct delayed_work phy_poll;
41 struct net_device *ndev;
42
43 spinlock_t lock;
44
45 struct mii_if_info mii;
46 u32 msg_enable;
47 u32 wake_state;
48
49 int rx_csum;
50 int can_csum;
51 int ip_summed;
52 } board_info_t;