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[SCSI] Increase default timeout for INQUIRY 

This patch (as1224) changes the default timeout for INQUIRY commands
from 3 seconds to 20 seconds, which is the value used by Windows for
USB Mass-Storage devices.  Some of these devices, like the Corsair
Flash Voyager (see Bugzilla #12188) really do need a long timeout.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
This commit is contained in:
Alan Stern 2009-03-12 11:08:51 -04:00 committed by James Bottomley
parent 20b09c2992
commit 14faf12f7d
1 changed files with 2 additions and 2 deletions
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4
drivers/scsi/scsi_scan.c
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@ -115,12 +115,12 @@ MODULE_PARM_DESC(max_report_luns,
"REPORT LUNS maximum number of LUNS received (should be"
" between 1 and 16384)");
static unsigned int scsi_inq_timeout = SCSI_TIMEOUT/HZ+3;
static unsigned int scsi_inq_timeout = SCSI_TIMEOUT/HZ + 18;
module_param_named(inq_timeout, scsi_inq_timeout, uint, S_IRUGO|S_IWUSR);
MODULE_PARM_DESC(inq_timeout,
"Timeout (in seconds) waiting for devices to answer INQUIRY."
" Default is 5. Some non-compliant devices need more.");
" Default is 20. Some devices may need more; most need less.");
/* This lock protects only this list */
static DEFINE_SPINLOCK(async_scan_lock);