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authorJames Bottomley <James.Bottomley@HansenPartnership.com>2008-01-20 09:09:40 -0600
committerJames Bottomley <James.Bottomley@HansenPartnership.com>2008-01-23 11:29:35 -0600
commitb30c2fc1113edfb2371427c10503ff942b0a0370 (patch)
tree1eb6f1c83f44bcd12e254a544eff20b3da9dc996
parenta0899d4df534d2bcf671b0f647b809842309a9ae (diff)
[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>
-rw-r--r--include/scsi/scsi_device.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/include/scsi/scsi_device.h b/include/scsi/scsi_device.h
index 3c8f898b160..ab7acbe8096 100644
--- a/include/scsi/scsi_device.h
+++ b/include/scsi/scsi_device.h
@@ -387,6 +387,10 @@ static inline int scsi_device_qas(struct scsi_device *sdev)
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) "*")