[sdiy] Does usb c alternative mode allow analog signals on the multi-purpose pins?

[cheater cheater]

If you go to amazon, you'll find nearly infinite USB C to headset
adapters following this standard, and they're as cheap as 4 euro.
They'll probably work well, too - even the worst C plugs I've
encountered on cheap cables are still very resilient. The mini jack on
the other hand, I mean who knows, but it'll probably take a bunch of
cycles. The more expensive ones are up to 10 euro, but not more.

On Thu, Nov 17, 2022 at 10:25 AM cheater cheater
<cheater00social at gmail.com> wrote:
>
> Thanks for the pointer to the spec. Appendix A talks about passive
> audio adapters from USB C to headset TRRS. That includes both input
> and output analog signals on the pins of a USB C port.
>
> Glad that you linked me to the pdf, the last time I tried searching
> for USB specs I found something completely different and it didn't
> answer my question.
>
> On Tue, Nov 15, 2022 at 9:23 PM Chromatest J. Pantsmaker
> <chromatest at azburners.org> wrote:
> >
> > "NOTE: Adopters may only use the USB Type-C® cable and connector to implement USB or third party functionality as expressly described in this Specification; all other uses are prohibited."
> > From:
> > https://www.usb.org/sites/default/files/USB%20Type-C%20Spec%20R2.0%20-%20August%202019.pdf
> >
> >
> > On Tue, Nov 15, 2022 at 11:08 AM cheater cheater via Synth-diy <synth-diy at synth-diy.org> wrote:
> >>
> >> As in subject. Is there anything in the spec that speaks against this?
> >> Where would one go in order to get a definitive answer to this?
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