[LAU] reducing xruns (System configuration)

[David Kastrup]

Max <abonnements at revolwear.com> writes:

> It's actually a behringer mixer (now legacy model afaik)... all right
> I will try a different card.
>
> I bought the docking station which has 6 more USB ports (4 USB 3.0 and
> 2 USB 2.0)
>
> however:
>
>  lsusb
> Bus 002 Device 002: ID 8087:8000 Intel Corp.
> Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
> Bus 001 Device 002: ID 8087:8008 Intel Corp.
> Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
> Bus 004 Device 004: ID 17ef:304f Lenovo
> Bus 004 Device 003: ID 2109:0812 VIA Labs, Inc. VL812 Hub
> Bus 004 Device 002: ID 2109:0812 VIA Labs, Inc. VL812 Hub
> Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
> Bus 003 Device 003: ID 8087:07dc Intel Corp.
> Bus 003 Device 011: ID 046a:b090 Cherry GmbH
> Bus 003 Device 030: ID 1686:0045 ZOOM Corporation H4 Digital Recorder
> Bus 003 Device 028: ID 0fce:01e1 Sony Ericsson Mobile Communications AB
> Bus 003 Device 010: ID 0424:2640 Standard Microsystems Corp. USB 2.0 Hub
> Bus 003 Device 009: ID 0424:2514 Standard Microsystems Corp. USB 2.0 Hub
> Bus 003 Device 006: ID 1a40:0101 Terminus Technology Inc. Hub
> Bus 003 Device 008: ID 17ef:304e Lenovo
> Bus 003 Device 007: ID 08bb:29c2 Texas Instruments PCM2902C Audio CODEC
> Bus 003 Device 004: ID 2109:2812 VIA Labs, Inc. VL812 Hub
> Bus 003 Device 002: ID 2109:2812 VIA Labs, Inc. VL812 Hub
> Bus 003 Device 005: ID 0bda:5719 Realtek Semiconductor Corp.
> Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
>
> no matter where I plug in the devices I can't seem to find how to use
> the Bus 4 USB 3.0. Could it be that it is only on the motherboard but
> not actually available to the user?

Well, what's the bus topology?

lsusb -t

should be good for that.

-- 
David Kastrup