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); |
struct ata_device * devtarget device
unsigned int * p_classpointer to class of the target device (may be changed)
unsigned int flagsATA_READID_* flags
u16 * idbuffer 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.
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)