nullnet.c File Reference

Null network device. More...

#include <stdint.h>
#include <errno.h>
#include <gpxe/iobuf.h>
#include <gpxe/netdevice.h>

Go to the source code of this file.

Functions
	FILE_LICENCE (GPL2_OR_LATER)
static int	null_open (struct net_device *netdev __unused)
static void	null_close (struct net_device *netdev __unused)
static int	null_transmit (struct net_device *netdev __unused, struct io_buffer *iobuf __unused)
static void	null_poll (struct net_device *netdev __unused)
static void	null_irq (struct net_device *netdev __unused, int enable __unused)
Variables
struct net_device_operations	null_netdev_operations

---

Detailed Description

Null network device.

Definition in file nullnet.c.

---

Function Documentation

FILE_LICENCE

(

GPL2_OR_LATER

)

static int null_open

(

struct net_device *netdev

__unused

)

[static]

Definition at line 32 of file nullnet.c.

References ENODEV.

                                                            {
        return -ENODEV;
};

static void null_close

(

struct net_device *netdev

__unused

)

[static]

Definition at line 36 of file nullnet.c.

                                                              {
        /* Do nothing */
};

static int null_transmit	(	struct net_device *netdev	__unused,
		struct io_buffer *iobuf	__unused
	)			[static]

Definition at line 40 of file nullnet.c.

References ENODEV.

                                                              {
        return -ENODEV;
};

static void null_poll

(

struct net_device *netdev

__unused

)

[static]

Definition at line 45 of file nullnet.c.

                                                             {
        /* Do nothing */
}

static void null_irq	(	struct net_device *netdev	__unused,
		int enable	__unused
	)			[static]

Definition at line 49 of file nullnet.c.

                                             {
        /* Do nothing */
}

---

Variable Documentation

struct net_device_operations null_netdev_operations

Initial value:

 {
        .open           = null_open,
        .close          = null_close,
        .transmit       = null_transmit,
        .poll           = null_poll,
        .irq            = null_irq,
}

Definition at line 54 of file nullnet.c.

Referenced by netdev_nullify().