aboutsummaryrefslogtreecommitdiff
path: root/drivers/usb/storage/scsiglue.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/usb/storage/scsiglue.c')
-rw-r--r--drivers/usb/storage/scsiglue.c10
1 files changed, 9 insertions, 1 deletions
diff --git a/drivers/usb/storage/scsiglue.c b/drivers/usb/storage/scsiglue.c
index 2a42b862aa9..4ca3b586064 100644
--- a/drivers/usb/storage/scsiglue.c
+++ b/drivers/usb/storage/scsiglue.c
@@ -64,6 +64,7 @@
*/
#define VENDOR_ID_NOKIA 0x0421
#define VENDOR_ID_NIKON 0x04b0
+#define VENDOR_ID_PENTAX 0x0a17
#define VENDOR_ID_MOTOROLA 0x22b8
/***********************************************************************
@@ -134,6 +135,12 @@ static int slave_configure(struct scsi_device *sdev)
if (sdev->request_queue->max_sectors > max_sectors)
blk_queue_max_sectors(sdev->request_queue,
max_sectors);
+ } else if (sdev->type == TYPE_TAPE) {
+ /* Tapes need much higher max_sector limits, so just
+ * raise it to the maximum possible (4 GB / 512) and
+ * let the queue segment size sort out the real limit.
+ */
+ blk_queue_max_sectors(sdev->request_queue, 0x7FFFFF);
}
/* Some USB host controllers can't do DMA; they have to use PIO.
@@ -158,6 +165,7 @@ static int slave_configure(struct scsi_device *sdev)
switch (le16_to_cpu(us->pusb_dev->descriptor.idVendor)) {
case VENDOR_ID_NOKIA:
case VENDOR_ID_NIKON:
+ case VENDOR_ID_PENTAX:
case VENDOR_ID_MOTOROLA:
if (!(us->fflags & (US_FL_FIX_CAPACITY |
US_FL_CAPACITY_OK)))
@@ -561,4 +569,4 @@ unsigned char usb_stor_sense_invalidCDB[18] = {
[7] = 0x0a, /* additional length */
[12] = 0x24 /* Invalid Field in CDB */
};
-
+EXPORT_SYMBOL_GPL(usb_stor_sense_invalidCDB);