PERFORCE change 113565 for review

Hans Petter Selasky hselasky at FreeBSD.org
Fri Jan 26 15:28:43 UTC 2007


http://perforce.freebsd.org/chv.cgi?CH=113565

Change 113565 by hselasky at hselasky_mini_itx on 2007/01/26 15:28:16

	Fix a small bug introduced by change 113559:
	High speed isochronous transfers take 8 times
	more frames per second than full speed
	isochronous transfers. Add a rounded up divide by 8.

Affected files ...

.. //depot/projects/usb/src/sys/dev/usb/ehci.c#24 edit

Differences ...

==== //depot/projects/usb/src/sys/dev/usb/ehci.c#24 (text+ko) ====

@@ -2705,7 +2705,7 @@
 		DPRINTFN(2,("start next=%d\n", xfer->pipe->isoc_next));
 	}
 
-	xfer->isoc_complete_time = (xfer->pipe->isoc_next + xfer->nframes) % USBD_ISOC_TIME_MAX;
+	xfer->isoc_complete_time = (xfer->pipe->isoc_next + ((xfer->nframes+7)/8)) % USBD_ISOC_TIME_MAX;
 
 	nframes = xfer->nframes;
 


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