This poisons the OUT buffers to help detect more bugs.
Fill OUT buffers with 0x55 before RX, so that controller driver
bugs that mangle data can be more readily detected during testing.
Signed-off-by: David Brownell <[EMAIL PROTECTED]>
Index: g26/drivers/usb/gadget/zero.c
===================================================================
--- g26.orig/drivers/usb/gadget/zero.c 2006-04-02 11:11:15.000000000 -0700
+++ g26/drivers/usb/gadget/zero.c 2006-04-02 11:16:56.000000000 -0700
@@ -572,9 +572,10 @@ static void source_sink_complete (struct
switch (status) {
case 0: /* normal completion? */
- if (ep == dev->out_ep)
+ if (ep == dev->out_ep) {
check_read_data (dev, ep, req);
- else
+ memset (req->buf, 0x55, req->length);
+ } else
reinit_write_data (dev, ep, req);
break;
@@ -626,6 +627,8 @@ source_sink_start_ep (struct usb_ep *ep,
if (strcmp (ep->name, EP_IN_NAME) == 0)
reinit_write_data (ep->driver_data, ep, req);
+ else
+ memset (req->buf, 0x55, req->length);
status = usb_ep_queue (ep, req, gfp_flags);
if (status) {
