Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=17f060224fb9f435c6f9306b7b61419d038def13
Commit: 17f060224fb9f435c6f9306b7b61419d038def13
Parent: eecfb911a03a48ef5f7114246343128bd01c1b5f
Author: Richard Sharpe <[EMAIL PROTECTED]>
AuthorDate: Wed Oct 10 10:56:28 2007 -0700
Committer: Greg Kroah-Hartman <[EMAIL PROTECTED]>
CommitDate: Fri Oct 12 14:55:33 2007 -0700
USB: allow usbstorage to have LUNS greater than 2Tb
Attached is a very small patch (several comment lines) and a one-line
coded change) that allows for USB storage devices that are larger than
2TB.
At the company where I work we need such support, and one of my
co-workers, Jane Liu, pointed out that SCSI low-layer drivers need to
specify what size CDBs they accept. After looking through the code it
became obvious that the current USB Storage code accepted the default of
12-byte CDBs, so I changed it to accept 16-byte CDBs. This allows our
device to work.
Signed-off-by: Richard Sharpe <[EMAIL PROTECTED]>
Signed-off-by: Matthew Dharm <[EMAIL PROTECTED]>
Signed-off-by: Greg Kroah-Hartman <[EMAIL PROTECTED]>
---
drivers/usb/storage/usb.c | 4 ++++
1 files changed, 4 insertions(+), 0 deletions(-)
diff --git a/drivers/usb/storage/usb.c b/drivers/usb/storage/usb.c
index 5918166..3451e8d 100644
--- a/drivers/usb/storage/usb.c
+++ b/drivers/usb/storage/usb.c
@@ -960,6 +960,10 @@ static int storage_probe(struct usb_interface *intf,
return -ENOMEM;
}
+ /*
+ * Allow 16-byte CDBs and thus > 2TB
+ */
+ host->max_cmd_len = 16;
us = host_to_us(host);
memset(us, 0, sizeof(struct us_data));
mutex_init(&(us->dev_mutex));
-
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