Re: [9front] [PATCH] Fix nusb/audio /dev entries

[hiro <23hiro@gmail.com>]

agreed.
just it should also not crap out on writes when there is no audio
device at all. at first i thought like you, but now i slept about it
for a night and i realize khm was correct. usb audio is too flakey and
we don't want errors in other applications for intermittent usb crap.

On 12/21/23, Sigrid Solveig Haflínudóttir <sigrid@ftrv.se> wrote:
> Write a tool (script?) that watches usbevent and does that. Run it in the
> right place so that namespace is updated properly for your programs.
> Bonus: a tool (I'd suggest separate from mixfs) that does that but also
> provides its own /dev/audio that never craps out on writes unless there is
> no audio devices at all, and can be configured in runtime to point at
> different "real" devices for input and output.
> That might be more useful than nusbrc running nusb/audio and modifying the
> namespace when one least expects it.
>
> On December 20, 2023 7:53:57 PM GMT+01:00, Arne Meyer
> <meyer.arne83@netcologne.de> wrote:
>>Hello qwx,
>>
>>> qwx@sciops.net hat am 20.12.2023 17:44 CET geschrieben:
>>>
>>> Thanks for the patch.  One could argue against the previous behavior
>>> -- what is your use case?
>>
>>I have a thin client with hda audio that is not quite working with the
>> 9front driver. So
>>I use a cheap usb sound card to get audio. In this case I could probably
>> do
>>'unmount #A' in a namespace file and have it work as intended?
>>
>>> Here are some arguments against it:
>>>
>>> - It pulls the rug under you by automatically changing the device you
>>> write audio to, and imho the interaction between #u, #A and mixfs gets
>>> confusing
>>>
>>> - If more devices are plugged in, only the last one would be used,
>>> switching output yet again
>>>
>>> - If the usb device is disconnected, audio will break for programs
>>> currently writing to /dev/audio and they would have to reopen it
>>>
>>
>>Yes, those are all good points.
>>
>>>
>>> What do you think, would that work in your case?
>>
>>If I plug in a usb device I expect it to become the default device. Maybe
>> mixfs
>>can do some clever stuff here?
>>
>>>
>>> Cheers,
>>> qwx
>