ata_dev_read_id — Read ID data from the specified device
int ata_dev_read_id
(struct ata_device * dev, unsigned int * p_class, unsigned int flags, u16 * id);
target device
pointer to class of the target device (may be changed)
ATA_READID_* flags
buffer to read IDENTIFY data into
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.
ATA_CMD_ID_ATA is optional for early drives and right now we abort if we hit that case.
Kernel thread context (may sleep)
0 on success, -errno otherwise.