centos man page for ata_is_40wire

ATA_IS_40WIRE(9)					       libata Core Internals						  ATA_IS_40WIRE(9)

NAME
       ata_is_40wire - check drive side detection

SYNOPSIS
       int ata_is_40wire(struct ata_device * dev);

ARGUMENTS
       dev
	   device

DESCRIPTION
       Perform drive side detection decoding, allowing for device vendors who can't follow the documentation.

AUTHOR
       Jeff Garzik
	   Author.

COPYRIGHT
Kernel Hackers Manual 3.10					     June 2014							  ATA_IS_40WIRE(9)