centos man page for phy_start_machine

PHY_START_MACHINE(9)					      Network device support					      PHY_START_MACHINE(9)

NAME
       phy_start_machine - start PHY state machine tracking

SYNOPSIS
       void phy_start_machine(struct phy_device * phydev, void (*handler) (struct net_device *));

ARGUMENTS
       phydev
	   the phy_device struct

       handler
	   callback function for state change notifications

DESCRIPTION
       The PHY infrastructure can run a state machine which tracks whether the PHY is starting up, negotiating, etc. This function starts the
       timer which tracks the state of the PHY. If you want to be notified when the state changes, pass in the callback handler, otherwise, pass
       NULL. If you want to maintain your own state machine, do not call this function.

COPYRIGHT
Kernel Hackers Manual 3.10					     June 2014						      PHY_START_MACHINE(9)