Re: patch to shift memory allocation s to usb_alloc_urb ()

Am Samstag, 30. Juni 2007 schrieb Greg KH:
> On Fri, Jun 29, 2007 at 03:18:23PM -0700, David Brownell wrote:
> > 
> > > > Gaak.  Just pass the usb_host_endpoint pointer in, with the relevant
> > > > length indicator.  Four functions would be ugly, unclean, unneceesary.
> > > > All the relevant data is in the endpoint descriptor, which is stored
> > > > in the host_endpoint struct.
> > > 
> > > This would be true, were it not for those drivers which use interrupt URBs
> > > on bulk endpoints.
> > 
> > It's still true.  You should never make such oddball exceptions
> > into a special case around which an API is defined ... they should
> > stay oddball exceptions.  Like in this case, patching up the URB
> > after it's set up would suffice.  (And look sufficiently ugly that
> > driver writers couldn't excuse themselves by "I didn't know I was
> > not supposed to do that.)
> 
> I agree, passing the usb_host_endpoint pointer would be the easiest way
> to do this.

So do we have consensus for this prototype:

struct urb *usb_alloc_urb(struct usb_host_endpoint *ep, unsigned int max_length, unsigned int iso_fields, gfp_t mem_flags);

	Regards
		Oliver

-------------------------------------------------------------------------
This SF.net email is sponsored by DB2 Express
Download DB2 Express C - the FREE version of DB2 express and take
control of your XML. No limits. Just data. Click to get it now.
http://sourceforge.net/powerbar/db2/
_______________________________________________
[email protected]
To unsubscribe, use the last form field at:
https://lists.sourceforge.net/lists/listinfo/linux-usb-devel