of_mdio_find_bus (9) - Linux Manuals

of_mdio_find_bus: Given an mii_bus node, find the mii_bus.

NAME

of_mdio_find_bus - Given an mii_bus node, find the mii_bus.

SYNOPSIS

struct mii_bus * of_mdio_find_bus(struct device_node * mdio_bus_np);

ARGUMENTS

mdio_bus_np

Pointer to the mii_bus.

DESCRIPTION

Returns a reference to the mii_bus, or NULL if none found. The embedded struct device will have its reference count incremented, and this must be put once the bus is finished with.

Because the association of a device_node and mii_bus is made via of_mdiobus_register, the mii_bus cannot be found before it is registered with of_mdiobus_register.

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