On 2/18/2011 7:13 PM, Matthieu CASTET wrote: > Hi Pavankumar, > > Pavankumar Kondeti a écrit : >> Chipidea USB controller provides a means (Add dTD TripWire semaphore) >> for safely adding a new dTD to an active endpoint's linked list. Make >> use of this feature to improve performance. Dynamically allocate and >> free dTD for supporting zero length packet termination. Honor >> no_interrupt flag set by gadget drivers. >> > > I don't know if you read my "duplicate udc driver for managing tdi core" > mail. > Sorry. I missed your email :-( > fsl_udc_core, ci13xxx_udc, langwell all support TripWire semaphore. > Idem test mode are already supported by langwell. > In fact I have taken fsl driver as a reference for implementing this patch. > > Instead of adding functionality to each driver won't it better to unify > them. > Agreed. But I guess it takes a good amount of time to come up with a unify driver that works for all of the existing users. We have been using ci13xxx_udc for some time (initially started with a new driver for MSM and later re-using ci13xxx_udc based on your review comment). The throughput numbers with ethernet gadget are very low. So implemented this feature. Thanks, Pavan -- Sent by a consultant of the Qualcomm Innovation Center, Inc. The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum. -- 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
