From: Giacomo Lozito <james@xxxxxxxxxxx>
Requests to get max LUN, for certain USB storage devices, require a longer timeout before a correct reply is
returned. This happens for a Realtek USB Card Reader (0bda:0152), which has a max LUN of 3 but is set to 0, thus
losing functionality, because of the timeout occurring too quickly.
Raising the timeout value fixes the issue and might help other devices to return a correct max LUN value as well.
Signed-off-by: Giacomo Lozito <james@xxxxxxxxxxx>
Acked-by: Alan Stern <stern@xxxxxxxxxxxxxxxxxxx>
---
--- linux-2.6.30/drivers/usb/storage/transport.c.orig 2009-07-13 21:58:46.000000000 +0200
+++ linux-2.6.30/drivers/usb/storage/transport.c 2009-07-13 21:59:33.000000000 +0200
@@ -961,7 +961,7 @@ int usb_stor_Bulk_max_lun(struct us_data
US_BULK_GET_MAX_LUN,
USB_DIR_IN | USB_TYPE_CLASS |
USB_RECIP_INTERFACE,
- 0, us->ifnum, us->iobuf, 1, HZ);
+ 0, us->ifnum, us->iobuf, 1, 10*HZ);
US_DEBUGP("GetMaxLUN command result is %d, data is %d\n",
result, us->iobuf[0]);
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