linux-kernel - Re: Linux Kernel

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Date:   Mon, 4 Mar 2019 16:04:26 +0200
From:   Mathias Nyman <mathias.nyman@...el.com>
To:     Cezary Lenkiewicz <missionfanboy@...il.com>,
        linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: Linux Kernel - problem

On 4.3.2019 14.17, Cezary Lenkiewicz wrote:
> Hello,
> I have problem with Euphony system - this is linux for audio.
> I talking with Euphony support but they say that the problem is in the linux kernel.
> 
> Please show my conversation with euphony:
> 
> https://euphony-audio.com/hesk/ticket.php?track=T4N-M6G-XHAE&e=missionfanboy%40gmail.com&Refresh=49662
> 
> Can you fix this PLEASE ?

Feb 28 17:11:34 euphony kernel: xhci_hcd 0000:04:00.0: ERROR: unexpected command completion code 0x11.
Feb 28 17:11:34 euphony kernel: usb 5-1.1: Not enough bandwidth for altsetting 1

Completion code 0x11 (17) is parameter error, this means some value in
a context parameter is invalid.

Many of these context parameter are taken from the descriptors of the
attached usb device  (device, interface, endpoint descriptors)

More details are needed, output of "lsusb -v", and dynamic debug of
xhci and usbcore would be a good start

-Mathias