Name
mdiobus_read — 
     Convenience function for reading a given MII mgmt register
 
Synopsis
| int mdiobus_read ( | struct mii_bus * bus, | 
|  | int addr, | 
|  | u32 regnum ); | 
 
Arguments
- bus
- 
     the mii_bus struct
     
- addr
- 
     the phy address
     
- regnum
- 
     register number to read
     
NOTE
   MUST NOT be called from interrupt context,
   because the bus read/write functions may wait for an interrupt
   to conclude the operation.