On Fri, March 15, 2019 4:20 pm, olaf@xxxxxxxxxx wrote: > so i tried lsusb -t > > lsusb -t > /:Â Bus 02.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/6p, 5000M > /:Â Bus 01.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/12p, 480M > Â Â Â |__ Port 1: Dev 6, If 3, Class=Human Interface Device, > Driver=usbhid, 480M > Â Â Â |__ Port 1: Dev 6, If 1, Class=Audio, Driver=snd-usb-audio, 480M > Â Â Â |__ Port 1: Dev 6, If 2, Class=Audio, Driver=snd-usb-audio, 480M > Â Â Â |__ Port 1: Dev 6, If 0, Class=Audio, Driver=snd-usb-audio, 480M > Â Â Â |__ Port 6: Dev 3, If 0, Class=Wireless, Driver=btusb, 12M > Â Â Â |__ Port 6: Dev 3, If 1, Class=Wireless, Driver=btusb, 12M > Â Â Â |__ Port 7: Dev 4, If 0, Class=Video, Driver=uvcvideo, 480M > Â Â Â |__ Port 7: Dev 4, If 1, Class=Video, Driver=uvcvideo, 480M > Â Â Â |__ Port 8: Dev 5, If 0, Class=Vendor Specific Class, Driver=, 12M Bus 1 Dev 6 has three audio endpoints. Try lsusb -v -s 1:6 to show verbose output from just device 6 on bus 1. And then hopefully Clemens or someone similarly familiar with snd-usb-audio driver can help interpret. -- Chris Caudle _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx https://lists.linuxaudio.org/listinfo/linux-audio-user