1 files changed, 2 insertions, 0 deletions

diff --git a/drivers/ata/libata.h b/drivers/ata/libata.h
index bb98390aa01a..be2ac39f013b 100644
--- a/drivers/ata/libata.h
+++ b/drivers/ata/libata.h
@@ -42,6 +42,8 @@ struct ata_scsi_args {
 enum {
         /* flags for ata_dev_read_id() */
         ATA_READID_POSTRESET    = (1 << 0), /* reading ID after reset */
+        ATA_READID_DETECT       = (1 << 1), /* perform presence detection
+                                             * using polling IDENTIFY */
 };
 
 extern struct workqueue_struct *ata_aux_wq;