ata_do_simple_cmd(9) centos man page | unix.com

ATA_DO_SIMPLE_CMD(9)					       libata Core Internals					      ATA_DO_SIMPLE_CMD(9)

NAME
       ata_do_simple_cmd - execute simple internal command

SYNOPSIS
       unsigned int ata_do_simple_cmd(struct ata_device * dev, u8 cmd);

ARGUMENTS
       dev
	   Device to which the command is sent

       cmd
	   Opcode to execute

DESCRIPTION
       Execute a 'simple' command, that only consists of the opcode 'cmd' itself, without filling any other registers

LOCKING
       Kernel thread context (may sleep).

RETURNS
       Zero on success, AC_ERR_* mask on failure

AUTHOR
       Jeff Garzik
	   Author.

COPYRIGHT
Kernel Hackers Manual 3.10					     June 2014						      ATA_DO_SIMPLE_CMD(9)