On Sat, 31 Jan 2015, Kazimierz Marzec wrote: > Good day, > could You please take a look at > https://bugzilla.kernel.org/show_bug.cgi?id=92341 > Regards. > > Dnia Pi�tek, 30 Stycznia 2015 17:15 <bugzilla-daemon@xxxxxxxxxxxxxxxxxxx> napisa�(a) > > https://bugzilla.kernel.org/show_bug.cgi?id=92341 > > > > --- Comment #1 from Greg Kroah-Hartman <greg@xxxxxxxxx> --- > > On Fri, Jan 30, 2015 at 01:58:09PM +0000, bugzilla-daemon@xxxxxxxxxxxxxxxxxxx > > wrote: > > > https://bugzilla.kernel.org/show_bug.cgi?id=92341 > > > > > > Bug ID: 92341 > > > Summary: xHCI USB driver, support for non-conformant HS USB > > > devices with bulk endpoints of maxpacket size > > > different than 512 > > > > Please send to the linux-usb@xxxxxxxxxxxxxxx mailing list. You could try applying the patch below. I don't know if there's any reason why the xhci-hcd driver forces all bulk endpoints to use a maxpacket size of 512. Alan Stern Index: usb-3.18/drivers/usb/host/xhci-mem.c =================================================================== --- usb-3.18.orig/drivers/usb/host/xhci-mem.c +++ usb-3.18/drivers/usb/host/xhci-mem.c @@ -1464,9 +1464,6 @@ int xhci_endpoint_init(struct xhci_hcd * max_burst = ep->ss_ep_comp.bMaxBurst; break; case USB_SPEED_HIGH: - /* Some devices get this wrong */ - if (usb_endpoint_xfer_bulk(&ep->desc)) - max_packet = 512; /* bits 11:12 specify the number of additional transaction * opportunities per microframe (USB 2.0, section 9.6.6) */ -- 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
