Hi Alan, Sarah, On Wed, May 9, 2012 at 10:33 AM, Alan Stern <stern@xxxxxxxxxxxxxxxxxxx> wrote: > On Tue, 8 May 2012, Sarah Sharp wrote: > >> On Tue, May 08, 2012 at 03:26:17PM -0700, Sarah Sharp wrote: >> > Yeah, it looks like the Fresco Logic host controller is reporting a >> > successful completion status, with an untransferred length of 8 bytes, >> > which is a contradiction. Since we can tell from the EHCI logs that it >> > actually should be reporting a short packet status, I think we should be >> > able to just add a quirk for it, to trust the untransferred length. >> > >> > I wonder if this is just for short control transfers, or if they have >> > this bug for other endpoint types? >> >> Er, I meant "short isochronous transfers", not short control transfers. > > It should be easy enough to find out, by plugging in a USB drive. Most > of them generate short bulk transfers during SCSI initialization. > > Alan Stern > I have an external USB 2.0 disk and also a USB 2.0 drive handy. Shall I try the 1st patch (short packet completion debugging) with them on the USB 3.0 port to check if it reports something else strange? Sergio -- 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
