[U-Boot] NetRxPackets

[Marcel]

On Tuesday, January 18, 2011 11:54:22 pm Reinhard Meyer wrote:
> Dear Marcel,
> 
> >> Well,you're supposed to do some basic code reading yourself.
> > 
> > Of course. It's always the idea to post a question after reading for some
> > time. It either means I don't understand the code, the code really
> > doesn't work or I did miss the most important part in the documents. I
> > guess the answer will follow once the issue is solved.
> > To be specific, I work with the u-boot-usb at91-cdc branch code. I'm not
> > sure if that is all working code at this moment but sounded like the
> > best starting point for my USB code.
> 
> Not sure that branch is anything up to date....

hmmm.  What branch is best to work on for this code ?
 
> >>> req->buf = (u8 *) NetRxPackets[0];
> 
> *maybe* "req" itself is not allocated?

Good question. My code that rejects the buffer is this :

static int
usba_ep_queue(struct usb_ep *_ep, 
              struct usb_request *_req, 
              gfp_t gfp_flags)
{
        struct usba_request *req = container_of(_req, struct usba_request, 
req);
        struct usba_ep *ep = container_of(_ep, struct usba_ep, ep);
        struct usba_udc *udc = ep->udc;
        int ret;
        
        debug("%s: queue req %p, len %u\n",
                        ep->ep.name, req, _req->length);
              
        if (!_req || !_req->complete
                        || !_req->buf || !list_empty(&req->queue)) {
          
                DBG("invalid request\n");
                if(!_req) debug("NO REQUEST\n");
                if(!_req->complete) debug("NO REQUEST COMPLETE\n");
                if(!_req->buf) debug("NO REQUEST BUF\n");
                if(!list_empty(&req->queue)) debug("NO LIST EMPTY\n");
                return -EINVAL;
        }

It just keeps failing with "NO REQUEST BUF". I feel like I'm staring at a typo 
for days and just don't see it.

regards,
Marcel