On Tue, Mar 19, 2013 at 9:18 PM, Sheldon Hearn <sheldonh@xxxxxxxxxxxxx> wrote: > Mar 19 18:39:39 wrox kernel: [ 616.451607] ALSA sound/usb/endpoint.c:874 cannot submit urb 0, error -28: not enough bandwidth > Mar 19 18:39:39 wrox kernel: [ 616.453600] ohci_hcd 0000:00:12.1: leak ed ffff8800cf81f870 (#06) state 2 I found this old luinux-usb post, that suggested it might help to disable the HID control on the USB sound cards: http://www.spinics.net/lists/linux-usb/msg73869.html However, I can't figure out how to address the HID control (i.e. what echo argument to use) in my case. My lsusb -t looks like this: /: Bus 09.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/2p, 5000M /: Bus 08.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/2p, 480M /: Bus 07.Port 1: Dev 1, Class=root_hub, Driver=ohci_hcd/2p, 12M /: Bus 06.Port 1: Dev 1, Class=root_hub, Driver=ohci_hcd/3p, 12M /: Bus 05.Port 1: Dev 1, Class=root_hub, Driver=ohci_hcd/3p, 12M /: Bus 04.Port 1: Dev 1, Class=root_hub, Driver=ohci_hcd/3p, 12M |__ Port 2: Dev 2, If 0, Class=Audio, Driver=snd-usb-audio, 12M |__ Port 2: Dev 2, If 1, Class=Audio, Driver=snd-usb-audio, 12M |__ Port 2: Dev 2, If 2, Class=Audio, Driver=snd-usb-audio, 12M |__ Port 2: Dev 2, If 3, Class=Human Interface Device, Driver=usbhid, 12M |__ Port 3: Dev 3, If 0, Class=Audio, Driver=snd-usb-audio, 12M |__ Port 3: Dev 3, If 1, Class=Audio, Driver=snd-usb-audio, 12M |__ Port 3: Dev 3, If 2, Class=Audio, Driver=snd-usb-audio, 12M |__ Port 3: Dev 3, If 3, Class=Human Interface Device, Driver=usbhid, 12M /: Bus 03.Port 1: Dev 1, Class=root_hub, Driver=ohci_hcd/3p, 12M /: Bus 02.Port 1: Dev 1, Class=root_hub, Driver=ehci-pci/6p, 480M /: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=ehci-pci/6p, 480M |__ Port 1: Dev 2, If 0, Class=Hub, Driver=hub/4p, 480M |__ Port 1: Dev 5, If 0, Class=Human Interface Device, Driver=usbhid, 1.5M |__ Port 1: Dev 5, If 1, Class=Human Interface Device, Driver=usbhid, 1.5M |__ Port 2: Dev 6, If 0, Class=Human Interface Device, Driver=usbhid, 12M |__ Port 2: Dev 6, If 1, Class=Human Interface Device, Driver=usbhid, 12M I tried "echo 4-1.1:2.3 > /sys/bus/usb/drivers/usbhid/unbind" but got "No such device". Ciao, Sheldon. ------------------------------------------------------------------------------ Everyone hates slow websites. So do we. Make your web apps faster with AppDynamics Download AppDynamics Lite for free today: http://p.sf.net/sfu/appdyn_d2d_mar _______________________________________________ Alsa-user mailing list Alsa-user@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/alsa-user
