centos man page for ata_exec_internal

ATA_EXEC_INTERNAL(9)					       libata Core Internals					      ATA_EXEC_INTERNAL(9)

NAME
       ata_exec_internal - execute libata internal command

SYNOPSIS
       unsigned ata_exec_internal(struct ata_device * dev, struct ata_taskfile * tf, const u8 * cdb, int dma_dir, void * buf, unsigned int buflen,
				  unsigned long timeout);

ARGUMENTS
       dev
	   Device to which the command is sent

       tf
	   Taskfile registers for the command and the result

       cdb
	   CDB for packet command

       dma_dir
	   Data tranfer direction of the command

       buf
	   Data buffer of the command

       buflen
	   Length of data buffer

       timeout
	   Timeout in msecs (0 for default)

DESCRIPTION
       Wrapper around ata_exec_internal_sg which takes simple buffer instead of sg list.

LOCKING
       None. Should be called with kernel context, might sleep.

RETURNS
       Zero on success, AC_ERR_* mask on failure

AUTHOR
       Jeff Garzik
	   Author.

COPYRIGHT
Kernel Hackers Manual 3.10					     June 2014						      ATA_EXEC_INTERNAL(9)