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. November 2013 ATA_DEV_READ_ID(9)