On 06.03.2015 12:58, karsten dindorp wrote: > Hi > > > I am experiencing a problem when i attach two USB3 devices. > > With one USB3 device directly in machine everything works: > > [0.000000] DMI: GIGABYTE M4HM87P-00/M4HM87P-00, BIOS F5 06/23/2014 >
Hi, most probably the event ring gets filled. Isoc transfer puts events on the event ring but only interrupts the host to start handling those after the last event. If the event ring gets full we shuold get a interrupt, and start handling the events, but we don't. A workaround is posted by Lu Baolu that makes sure we interrupt on every isoc event, and make sure ring is not filled. Patch is here: http://marc.info/?l=linux-usb&m=142620809229752&w=2 And will most likely be in 4.1 kernel -Mathias -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
