This patch started life as as366, got some modifications, and lives now as
as366b.  It implements a delay in SCSI-layer device scanning for
usb-storage devices at insertion time.

Many devices work better with this delay.  We believe we can remove several
US_FL_FIX_INQUIRY unusual_devs.h entries with this patch.  (That's a hint,
Phil!)

The delay is adjustable via a sysfs parameter which is global to the
usb-storage module.  The default is 5 seconds.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Matthew Dharm <mdharm-usb@one-eyed-alien.net>
Signed-off-by: Greg Kroah-Hartman <greg@kroah.com>