Felipe, On Tue, Aug 12, 2014 at 11:55 AM, Felipe Balbi <balbi@xxxxxx> wrote: > On Tue, Aug 12, 2014 at 11:46:32AM -0500, Bin Liu wrote: >> CPPI TX does not transmit ZLP for TX transfers which >> - transfer size is multiple of EP packet size, >> - and URB_ZERO_PACKET is set in urb->transfer_flags. >> >> The fix is transmitting the ZLP using PIO mode after the CPPI TX is >> done. >> >> Validated using the following usbtest write case for MUSB host mode. >> >> # testusb -t1 -c1 > > is it still stable if you using -c 50000 ? Patch looks ok, but I'd like > to make sure there are no races there while at it. Seems no issue here. ran -c50000 multiple times, the protocol trace looks no issue (obviously I cannot check every iteration of the 50K xfers...), and the usb port still alive. ;) Regards, -Bin. > > -- > balbi -- 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
