It turns out that what happens is that the root hub timer goes off
after the OHCI driver has done its suspend stuff. The timer routine
sees that the HCD is not running at the moment and doesn't schedule
another timeout. Hence the series of timeouts stops.
The patch below fixes the problem for me. Comments welcome.
Paul.
diff -urN linuxppc-2.5/drivers/usb/core/hcd.c pmac-2.5/drivers/usb/core/hcd.c
--- linuxppc-2.5/drivers/usb/core/hcd.c Sun Jul 21 12:58:49 2002
+++ pmac-2.5/drivers/usb/core/hcd.c Tue Jul 23 22:21:25 2002
@@ -454,7 +454,6 @@
/* rh_timer protected by hcd_data_lock */
if (timer_pending (&hcd->rh_timer)
|| urb->status != -EINPROGRESS
- || !HCD_IS_RUNNING (hcd->state)
|| urb->transfer_buffer_length < len) {
dbg ("not queuing status urb, stat %d", urb->status);
return -EINVAL;
@@ -508,8 +507,12 @@
BUG ();
}
spin_unlock_irqrestore (&hcd_data_lock, flags);
- } else
+ } else {
spin_unlock_irqrestore (&urb->lock, flags);
+ spin_lock_irqsave (&hcd_data_lock, flags);
+ rh_status_urb (hcd, urb);
+ spin_unlock_irqrestore (&hcd_data_lock, flags);
+ }
} else {
/* this urb's been unlinked */
urb->hcpriv = 0;
-
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