MDIOBUS_WRITE_NESTED(9)               Network device support              MDIOBUS_WRITE_NESTED(9)



NAME
       mdiobus_write_nested - Nested version of the mdiobus_write function

SYNOPSIS
       int mdiobus_write_nested(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

DESCRIPTION
       In case of nested MDIO bus access avoid lockdep false positives by using
       mutex_lock_nested.

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 4.8.                 January 2017                   MDIOBUS_WRITE_NESTED(9)