centos man page for ata_cmd_ioctl

ATA_CMD_IOCTL(9)					  libata SCSI translation/emulat					  ATA_CMD_IOCTL(9)

NAME
       ata_cmd_ioctl - Handler for HDIO_DRIVE_CMD ioctl

SYNOPSIS
       int ata_cmd_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.

AUTHOR
       Jeff Garzik
	   Author.

COPYRIGHT
Kernel Hackers Manual 3.10					     June 2014							  ATA_CMD_IOCTL(9)