On Sunday 21 August 2011 12:18:34 Amit Blay wrote: > Thanks Sarah, Hans for your comments, > > On Thu, August 18, 2011 3:47 pm, Sarah Sharp wrote: > > Yes, I think this is the correct solution. Sorry for taking so long to > > get back to you. > > OK, so I will go ahead with implementing this solution. > > > On Wed, Aug 17, 2011 at 09:06:03AM +0200, Hans Petter Selasky wrote: > >> I would suggest overloading the "unsigned int pipe", instead of breaking > >> existing API's by adding a new stream ID value. Also for LibUSB. > > The purposed solution will not break any existing API, by doing the > following: > a. Adding a new API for streams alloc/dealloc > b. Adding a new API for submitting a URB which is stream capable (I will > implement this in a separate patch). > > > I don't see this as a strong argument why we should arbitrarily limit a > > new API. It's very hard to deprecate kernel to userspace API, so I > > think we should do it right the first time. There are current > > applications (like an SSD behind a UAS device) that need as many > > concurrent streams in flight as possible, so I don't buy the argument > > that there aren't current applications that need that many streams. > > I agree with Sarah. > Hans, I appreciate your inputs. Please let me know if you see a good > reason why not implementing the new APIs purposed above for streams > allocation and usage. Otherwise I will go ahead with the implementation. Hi Amit, I think your suggestion is OK. --HPS -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
