Hi,
Here's a patch against 2.4.12-ac3 by David Brownell that changes the
error messages of the UHCI drivers to show the difference between a
stall and babble.
thanks,
greg k-h
diff --minimal -Nru a/Documentation/usb/error-codes.txt
b/Documentation/usb/error-codes.txt
--- a/Documentation/usb/error-codes.txt Wed Oct 17 00:06:38 2001
+++ b/Documentation/usb/error-codes.txt Wed Oct 17 00:06:38 2001
@@ -79,8 +79,7 @@
-EILSEQ CRC mismatch
USB_ST_STALL
--EPIPE a) babble detect
- b) endpoint stalled
+-EPIPE endpoint stalled
USB_ST_BUFFEROVERRUN
-ECOMM During an IN transfer, the host controller
@@ -95,7 +94,7 @@
USB_ST_DATAOVERRUN
-EOVERFLOW The amount of data returned by the endpoint was
greater than either the max packet size of the
- endpoint or the remaining buffer size
+ endpoint or the remaining buffer size. "Babble".
USB_ST_DATAUNDERRUN
-EREMOTEIO The endpoint returned less than max packet size
diff --minimal -Nru a/drivers/usb/uhci.c b/drivers/usb/uhci.c
--- a/drivers/usb/uhci.c Wed Oct 17 00:06:38 2001
+++ b/drivers/usb/uhci.c Wed Oct 17 00:06:38 2001
@@ -796,7 +796,7 @@
if (status & TD_CTRL_NAK) /* NAK */
return -ETIMEDOUT;
if (status & TD_CTRL_BABBLE) /* Babble */
- return -EPIPE;
+ return -EOVERFLOW;
if (status & TD_CTRL_DBUFERR) /* Buffer error */
return -ENOSR;
if (status & TD_CTRL_STALLED) /* Stalled */
diff --minimal -Nru a/drivers/usb/usb-uhci.c b/drivers/usb/usb-uhci.c
--- a/drivers/usb/usb-uhci.c Wed Oct 17 00:06:38 2001
+++ b/drivers/usb/usb-uhci.c Wed Oct 17 00:06:38 2001
@@ -2193,7 +2193,7 @@
if (status & TD_CTRL_NAK) /* NAK */
return -ETIMEDOUT;
if (status & TD_CTRL_BABBLE) /* Babble */
- return -EPIPE;
+ return -EOVERFLOW;
if (status & TD_CTRL_DBUFERR) /* Buffer error */
return -ENOSR;
if (status & TD_CTRL_STALLED) /* Stalled */
_______________________________________________
[EMAIL PROTECTED]
To unsubscribe, use the last form field at:
https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
