Name
sas_expander_alloc — 
     allocate an rphy for an end device
 
Synopsis
| struct sas_rphy * sas_expander_alloc ( | struct sas_port * parent, | 
|  | enum sas_device_type type ); | 
 
Arguments
- parent
- 
     which port
     
- type
- 
     SAS_EDGE_EXPANDER_DEVICE or SAS_FANOUT_EXPANDER_DEVICE
     
Description
   Allocates an SAS remote PHY structure, connected to parent.
Returns
   SAS PHY allocated or NULL if the allocation failed.