Please use Reply-To-All, so that your message is sent to the mailing list as well as to me. On Mon, 3 Aug 2015, Jakob Schürz wrote: > Am 2015-08-03 um 16:18 schrieb Alan Stern: > > On Sun, 2 Aug 2015, Jakob Schürz wrote: > > > >> # uname -a > >> Linux aldebaran 4.0.0-2-amd64 #1 SMP Debian 4.0.8-2 (2015-07-22) x86_64 > >> GNU/Linux > > > >> # cat /sys/kernel/debug/usb/devices > >> > >> T: Bus=03 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#= 1 Spd=5000 MxCh= 4 > >> B: Alloc= 0/800 us ( 0%), #Int= 0, #Iso= 0 > >> D: Ver= 3.00 Cls=09(hub ) Sub=00 Prot=03 MxPS= 9 #Cfgs= 1 > >> P: Vendor=1d6b ProdID=0003 Rev= 4.00 > >> S: Manufacturer=Linux 4.0.0-2-amd64 xhci-hcd > >> S: Product=xHCI Host Controller > >> S: SerialNumber=0000:00:14.0 > >> C:* #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr= 0mA > >> I:* If#= 0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=00 Driver=hub > >> E: Ad=81(I) Atr=03(Int.) MxPS= 4 Ivl=256ms > >> > >> T: Bus=02 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#= 1 Spd=480 MxCh= 9 > >> B: Alloc= 0/800 us ( 0%), #Int= 0, #Iso= 0 > >> D: Ver= 2.00 Cls=09(hub ) Sub=00 Prot=01 MxPS=64 #Cfgs= 1 > >> P: Vendor=1d6b ProdID=0002 Rev= 4.00 > >> S: Manufacturer=Linux 4.0.0-2-amd64 xhci-hcd > >> S: Product=xHCI Host Controller > >> S: SerialNumber=0000:00:14.0 > >> C:* #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr= 0mA > >> I:* If#= 0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=00 Driver=hub > >> E: Ad=81(I) Atr=03(Int.) MxPS= 4 Ivl=256ms > > > > So the troublesome device and a few others all lie on the > > full-speed/high-speed bus attached to an xHCI controller. > > > >> T: Bus=02 Lev=01 Prnt=01 Port=03 Cnt=01 Dev#= 3 Spd=12 MxCh= 0 > >> D: Ver= 2.10 Cls=e0(wlcon) Sub=01 Prot=01 MxPS=64 #Cfgs= 1 > >> P: Vendor=0bda ProdID=b001 Rev= 2.00 > >> S: Manufacturer=Realtek > >> S: Product=Bluetooth Radio > >> S: SerialNumber=00e04c000001 > >> C:* #Ifs= 2 Cfg#= 1 Atr=e0 MxPwr=500mA > >> I:* If#= 0 Alt= 0 #EPs= 3 Cls=e0(wlcon) Sub=01 Prot=01 Driver=rtk_btusb > >> E: Ad=81(I) Atr=03(Int.) MxPS= 16 Ivl=1ms > >> E: Ad=02(O) Atr=02(Bulk) MxPS= 64 Ivl=0ms > >> E: Ad=82(I) Atr=02(Bulk) MxPS= 64 Ivl=0ms > >> I:* If#= 1 Alt= 0 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=rtk_btusb > >> E: Ad=03(O) Atr=01(Isoc) MxPS= 0 Ivl=1ms > >> E: Ad=83(I) Atr=01(Isoc) MxPS= 0 Ivl=1ms > >> I: If#= 1 Alt= 1 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=rtk_btusb > >> E: Ad=03(O) Atr=01(Isoc) MxPS= 9 Ivl=1ms > >> E: Ad=83(I) Atr=01(Isoc) MxPS= 9 Ivl=1ms > > [...] > > >> T: Bus=02 Lev=01 Prnt=01 Port=04 Cnt=02 Dev#= 4 Spd=12 MxCh= 0 > >> D: Ver= 1.10 Cls=ff(vend.) Sub=12 Prot=ff MxPS= 8 #Cfgs= 1 > >> P: Vendor=138a ProdID=003f Rev= 1.04 > >> S: SerialNumber=0020e21ccd95 > >> C:* #Ifs= 1 Cfg#= 1 Atr=a0 MxPwr=100mA > >> I:* If#= 0 Alt= 0 #EPs= 4 Cls=ff(vend.) Sub=00 Prot=00 Driver=(none) > >> E: Ad=01(O) Atr=02(Bulk) MxPS= 64 Ivl=0ms > >> E: Ad=81(I) Atr=02(Bulk) MxPS= 64 Ivl=0ms > >> E: Ad=82(I) Atr=02(Bulk) MxPS= 64 Ivl=0ms > >> E: Ad=83(I) Atr=03(Int.) MxPS= 8 Ivl=4ms > > > > Do you happen to know what this device is? > > > > [...] > > > > > Does it make any difference if you remove the Bluetooth radio and the > > HP webcam? They compete for bandwidth on the same bus as the AC209N > > speakers. > > > > In theory there should be plenty of bandwidth for all these devices to > > run at the same time. Still, it's worth checking. > > The Problem is... this is a Laptop, and only on one of the 4 > USB-Connectors is the AC209N connected... all the other devices are fix > installed in the laptop, and I'm not able to disconnect them... Maybe you can unload their drivers; that would be just as good: rmmod rtk-btusb rmmod uvcvideo > And i tried it on all 4 Connectors... every time the same... At this point I think we will need help from Mathias Nyman, the maintainer for the xhci-hcd driver. 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
