On 04/07/13 09:04, Hans Petter Selasky wrote:
3) Make sure that channels are not generating tokens if they are aborted / cancelled / timedout. This can not be verified using a USB mass storage device. Verify this by connecting a USB serial adapter. Try to open/close /dev/cuaU0. Make sure it does not loose any bytes and that channel cancel does not hang forever.
Hi, I recommend that cancel works like this: 1) Set invalid device address, like 127. 2) Use DMA delay feature to make a 4ms wait (see XHCI driver for example). 3) Free host channel (final). --HPS _______________________________________________ freebsd-usb@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-usb To unsubscribe, send any mail to "freebsd-usb-unsubscr...@freebsd.org"
