DEV_OPEN(9) Network device support DEV_OPEN(9)

NAME dev_open - prepare an interface for use.

SYNOPSIS int dev_open(struct net_device * dev);

ARGUMENTS dev device to open

DESCRIPTION Takes a device from down to up state. The device´s private open function is invoked and then the multicast lists are loaded. Finally the device is moved into the up state and a NETDEV_UP message is sent to the netdev notifier chain.

Calling this function on an active interface is a nop. On a failure a negative errno code is returned.