false positive -ENOSPC in ohci-q

Andrea Arcangeli <[email protected]>
Newsgroups gmane.linux.usb.devel
Message-ID <[email protected]>
Hello,

until I applied the below patch I couldn't use the usb camera at the
same time of the usb modem (both usb1 devices). The camera returned
-ENOSPC. Now they both work fine at the same time (camera managed by
zoneminder and running all the time and the modem giving me the
internet link, both without any apparent problem).

Please make sure the below broken code is removed (or fixed) from
future releases. I'm available for testing fixed version of the
code. It seems Greg's usb tree is different so perhaps this was fixed
already but sure it wasn't fixed in mainline yet, so I'm sending this
reminder just in case.

Thanks!

diff -r a860286d4b60 drivers/usb/host/ohci-q.c
--- a/drivers/usb/host/ohci-q.c	Fri Feb 16 20:15:14 2007 +0000
+++ b/drivers/usb/host/ohci-q.c	Sun Feb 25 07:07:46 2007 +0100
@@ -107,6 +107,7 @@ static int balance (struct ohci_hcd *ohc
 	 */
 	for (i = 0; i < interval ; i++) {
 		if (branch < 0 || ohci->load [branch] > ohci->load [i]) {
+#if 0
 			int	j;
 
 			/* usb 1.1 says 90% of one frame */
@@ -116,6 +117,7 @@ static int balance (struct ohci_hcd *ohc
 			}
 			if (j < NUM_INTS)
 				continue;
+#endif
 			branch = i;
 		}
 	}


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