Am Mittwoch 18 Juli 2007 schrieb Alan Stern:
> On Wed, 18 Jul 2007, Oliver Neukum wrote:
>
> > > Am Mittwoch 18 Juli 2007 schrieb Alan Stern:
> > > int usb_submit_urb(struct urb *urb, gfp_t mem_flags)
> > > {
> > > - int pipe, temp, max;
> > > - struct usb_device *dev;
> > > - int is_out;
> > > + int xfertype, max;
> > > + struct usb_device *dev;
> > > + struct usb_host_endpoint *ep;
> > > + int is_out;
> >
> > This is a bit odd. Using a pointer the direction info should be included.
>
> I don't understand. Included where?
struct usb_host_endpoint
> > Or you could use endpoint numbers, which would remove some issues
> > with enummeration.
>
> That's essentially the same as using a pipe, since some of the bits in
> a pipe _are_ the endpoint number.
Only some, but yes, it is much closer. Still if you give ep, dev and is_out
should be implicit. And how do you submit the first URBs? Are you going
to fake a struct usb_host_endpoint for endpoint 0 ?
Regards
Oliver
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