centos man page for ata_do_set_mode

ATA_DO_SET_MODE(9)						  libata Library						ATA_DO_SET_MODE(9)

NAME
       ata_do_set_mode - Program timings and issue SET FEATURES - XFER

SYNOPSIS
       int ata_do_set_mode(struct ata_link * link, struct ata_device ** r_failed_dev);

ARGUMENTS
       link
	   link on which timings will be programmed

       r_failed_dev
	   out parameter for failed device

DESCRIPTION
       Standard implementation of the function used to tune and set ATA device disk transfer mode (PIO3, UDMA6, etc.). If ata_dev_set_mode fails,
       pointer to the failing device is returned in r_failed_dev.

LOCKING
       PCI/etc. bus probe sem.

RETURNS
       0 on success, negative errno otherwise

AUTHOR
       Jeff Garzik
	   Author.

COPYRIGHT
Kernel Hackers Manual 3.10					     June 2014							ATA_DO_SET_MODE(9)