On Thu, 25 Aug 2011, Sarah Sharp wrote: > Note that the mask does not include the warm port reset bit (PORT_WRC). > When I applied the attached patch to include the warm port reset bit > change in the mask on top of Andiry's patch (plus the modifications I > made), the USB core did clear the BH reset change. Your patch includes a FIXME asking about the PORT_RC field. The answer is that reset-change does not need to be reported (indeed, UHCI doesn't support it at all) unless it causes an IRQ, in which case you have to report it so that usbcore can turn off the IRQ source. We don't use it for anything because it never gets set spontaneously -- it only gets set in response to a reset initiated by the host. Alan Stern -- 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
