Am Mittwoch, 24. Februar 2010 14:42:11 schrieb Ajay Kumar Gupta: > Current musb host driver does the giveback of completed urb first and > then start the next request. This is significantly affecting the streaming > from an USB camera wherein we observe huge delay between the two IN tokens > from musb host. This is due to the fact that UVC driver is doing decoding > and further processing in giveback context. > > The patch tries to defer the giveback part to a workqueue and continues > with the start of new request in completion path. I am afraid this is conceptually broken. Drivers are supposed to be able to evaluate the response and do error handling before the next URB is processed. Regards Oliver -- 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
