centos man page for mdiobus_write

MDIOBUS_WRITE(9)					      Network device support						  MDIOBUS_WRITE(9)

NAME
       mdiobus_write - Convenience function for writing a given MII mgmt register

SYNOPSIS
       int mdiobus_write(struct mii_bus * bus, int addr, u32 regnum, u16 val);

ARGUMENTS
       bus
	   the mii_bus struct

       addr
	   the phy address

       regnum
	   register number to write

       val
	   value to write to regnum

NOTE
       MUST NOT be called from interrupt context, because the bus read/write functions may wait for an interrupt to conclude the operation.

COPYRIGHT
Kernel Hackers Manual 3.10					     June 2014							  MDIOBUS_WRITE(9)