[SCSI] scsi.h: add macro for enclosure bit of inquiry data
The macro tells us whether the device is (or contains) an enclosure device.
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
diff --git a/include/scsi/scsi_device.h b/include/scsi/scsi_device.h
index 3c8f898..ab7acbe 100644
--- a/include/scsi/scsi_device.h
+++ b/include/scsi/scsi_device.h
@@ -387,6 +387,10 @@
return 0;
return sdev->inquiry[56] & 0x02;
}
+static inline int scsi_device_enclosure(struct scsi_device *sdev)
+{
+ return sdev->inquiry[6] & (1<<6);
+}
#define MODULE_ALIAS_SCSI_DEVICE(type) \
MODULE_ALIAS("scsi:t-" __stringify(type) "*")