Re: Re (2): USB functionality.

On 12 Mar 2024 at 16:29:31 GMT, "peter@easthope.ca" <peter@easthope.ca> wrote:

In article <2219572717.2fe80b82@uninhabited.net>, Roger Hayter
<roger@hayter.org> wrote:

But can even USB-C accept a signal input (keyboard and mouse for
instance) and unrelated signal output (audio for instance) on the
same physical socket? I ask only out of curiosity.

 
The setup is rarely tried.  Appears that nobody can reply.
 
A keyboard or mouse sends tiny amounts of data; a few bytes per
second. In principle the link should be able to fit that in without
significant drop-outs in audio output.  WIth so many details involved,
a general answer is difficult. When all else fails, we can test and
see what happens.  =8~)
 
Regards,             ... P.

So you could use an overarching protocol which was bilateral (ethernet
anyone?) and send and separate messages both ways.  What I was aksing was
whether within the USB protocol there was provision for using some pins in for
one electrical signal (bi or uni-directional) and other pins for another
electrical signal. Because that would be the only way to do it without special
software on at least one of the devices.

--
Roger Hayter