On Mon, 17 Dec 2012, Sarah Sharp wrote: > Alan, what does the EHCI scheduler do if the HS device's wMaxPacketSize > is set to 64 bytes? Happily schedule 64 byte transfers? Or will it > schedule 512 byte packets since that's the only allowed type for HS bulk > endpoints? I don't know -- I assume it will never come up. When people use bulk endpoints with these bogus maxpacket sizes, they never do any transfers longer than one packet. > I can unconditionally set the HS bulk wMaxPacketSize to 512 bytes, but > I'm not sure that will work with this device. It should if the transfers are never more than 64 bytes long. Or if there are no transfers to that endpoint. Question: Should the maxpacket change be made in xhci-hcd or in usbcore? 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
