On Thu, 12 Nov 2015, Felipe Balbi wrote: > >> >> Also, my problem seems to be sensitive to the host port being USB > >> >> 3.0 since I have an older Lenovo X201 with USB 2.0 ports that does > >> >> _not_ exhibit this problem. IOW when I connect my Arietta G25 mass > >> >> storage gadget to the X201, it works properly for all G25 kernels > >> >> that I have tried. > >> I'd blame UDC driver. We have several other UDCs working with the same > >> configuration. > > > > Sounds reasonable to me. But that doesn't explain why it works okay > > with the older Lenovo X201 laptop. > > it seems like only x240 is running > 4.0. What is x201 running ? Could > be older, buggy xhci driver. Or maybe it uses EHCI, since Douglas described it as having USB 2.0 ports. 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
