ata_dev_read_id(9) suse man page | unix.com

ATA_DEV_READ_ID(9)					       libata Core Internals						ATA_DEV_READ_ID(9)

NAME
       ata_dev_read_id - Read ID data from the specified device

SYNOPSIS
       int ata_dev_read_id(struct ata_device * dev, unsigned int * p_class, unsigned int flags, u16 * id);

ARGUMENTS
       dev
	   target device

       p_class
	   pointer to class of the target device (may be changed)

       flags
	   ATA_READID_* flags

       id
	   buffer to read IDENTIFY data into

DESCRIPTION
       Read ID data from the specified device. ATA_CMD_ID_ATA is performed on ATA devices and ATA_CMD_ID_ATAPI on ATAPI devices. This function
       also issues ATA_CMD_INIT_DEV_PARAMS for pre-ATA4 drives.

FIXME
       ATA_CMD_ID_ATA is optional for early drives and right now we abort if we hit that case.

LOCKING
       Kernel thread context (may sleep)

RETURNS
       0 on success, -errno otherwise.

AUTHOR
       Jeff Garzik
	   Author.

COPYRIGHT
Kernel Hackers Manual 2.6.					     July 2010							ATA_DEV_READ_ID(9)