Name
ata_task_ioctl — 
     Handler for HDIO_DRIVE_TASK ioctl
 
Synopsis
| int ata_task_ioctl ( | struct scsi_device * scsidev, | 
|  | void __user * arg ); | 
 
Arguments
- scsidev
- 
     Device to which we are issuing command
     
- arg
- 
     User provided data for issuing command
     
LOCKING
   Defined by the SCSI layer.  We don't really care.
RETURNS
   Zero on success, negative errno on error.