[fedora-arm] Re: Kernel update has lost XMOS USB hardware

On 09/07/2021 14:19, Peter Robinson wrote:
> Please leave the list on replies.
>
> On Fri, Jul 9, 2021 at 1:30 PM David W. Legg<dwlegg@gmail.com> wrote:
>> On 09/07/2021 12:38, Peter Robinson wrote:
>>> Adding arm@ list back in.
>>>
>>> On Fri, Jul 9, 2021 at 12:37 PM Peter Robinson<pbrobinson@gmail.com> wrote:
>>>> On Fri, Jul 9, 2021 at 12:30 PM David W. Legg<dwlegg@gmail.com> wrote:
>>>>> On 09/07/2021 11:24, Peter Robinson wrote:
>>>>>
>>>>>> On Fri, Jul 9, 2021 at 10:10 AM David W. Legg<dwlegg@gmail.com> wrote:
>>>>>>> I tried updating my Fedora 34 kernel from-
>>>>>>>
>>>>>>> 5.11.17-300
>>>>>>>
>>>>>>> to
>>>>>>>
>>>>>>> 5.12.14-300
>>>>>>>
>>>>>>> and it no longer recognises my XMOS USB device:
>>>>>>>
>>>>>>> $ cat /proc/asound/cards
>>>>>>>
>>>>>>> 0 [ALSA ]: bcm2835_alsa - bcm2835 ALSA
>>>>>>> bcm2835 ALSA
>>>>>>> 1 [vc4hdmi0 ]: vc4-hdmi - vc4-hdmi-0
>>>>>>> vc4-hdmi-0
>>>>>>> 2 [vc4hdmi1 ]: vc4-hdmi - vc4-hdmi-1
>>>>>>> vc4-hdmi-1
>>>>>>> 4 [H20 ]: USB-Audio - HU300 HiFi 2.0
>>>>>>> Yunyue Audio HU300 HiFi 2.0 at usb-0000:01:00.0-1.3, high speed
>>>>>>>
>>>>>>> So, device number 4 is missing with the 5.12.14-300 kernel.
>>>>>>>
>>>>>>> Given that the rpi4 is not yet supported, whom should I tell about this apparent bug, please?
>>>>>> What's a "XMOS USB hardware"? I doubt being USB it's specific to the
>>>>>> RPi4, does it work on another devices such as an x86 device? Can you
>>>>>> give more information about the device, what driver does it use when
>>>>>> it worked, what's the output of the lsusb line for it etc.
>>>>> Thanks, for replying, Peter.
>>>>>
>>>>> It is the sound card #4 mentioned above, labelled H20. It is a USB to
>>>>> I2S audio interface to an ES9038 DAC.
>>>>>
>>>>> I can try it with an x86_64 PC when a new card arrives at some point in
>>>>> the future.
>>>> I don't know what you mean by that.
>>>>
>>>>> lsusb says it is this:-
>>>>>
>>>>> Bus 001 Device 003: ID 20b1:0008 XMOS Ltd HU300 HiFi 2.0
>>>>>
>>>>>
>>>>> It uses the snd_usb_audio driver, according to lsmod.
>>>>>
>>>>> Should I just report it on Bugzilla, saying that it is
>>>>> hardware-non-specific?
>>>> Do other USB devices work in the RPi?
>>>>
>>>> Was this an upgrade from and older Fedora release at some point in the
>>>> past? If so does running rpi-uboot-update and rebooting fix it?
>> It was a fresh F34 installation some months ago, but with minimal updates.
>>
>> Last week updated just the kernel and my usb audio card was not recognised.
> As asked above do other USB devices still work?
>
>> Yesterday, I updated everything, with the same results.
> Did you run rpi-uboot-update?


Oops, sorry; yes, other USB devices work, e.g. USB 3.0 disk, plugged
into USB 3 socket. The XMOS USB audio device is in a USB 2 socket.

I did not run rpi-uboot-update, because it was not an upgrade from an
older release ...

... and yes, the rpi-uboot-update fixes it! Hoorah. Many thanks, Peter. :)

Why did the rpi-uboot-update make a USB device reappear? I thought dnf
updates did all that sort of thing nowadays.

Is there some documentation somwhere for rpi-uboot-update, please?

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