[arm-allstar] C-MEDIA HS-100B

[David McGough]

Yes, that support got added as part of the iopipe project. Currently this 
chip can be used with a computer headphone / mic combo. For now, you can 
use the simpleusb-tune-menu option 'k' to key/unkey PTT.

More features are forthcoming. And, you're correct, I don't think that
chip has any GPIO, at least not reliably.


73, David KB4FXC



On Mon, 9 Jul 2018, "Skyler F via arm-allstar" wrote:

> I have noticed the surprisingly the hamvoip image has support for the
> C-Media HS-100B! I plugged in a soundcard with this chip, and I got audio
> out of it and asterisk recognized the chip.
> 
> Does anybody know if this chip has any PTT GPIO lines supported? With my
> meter, I could not get a voltage reading on pin #13 while PTT was active. I
> also looked at the image of the chip and see no GPIO
> https://www.semiconductorstore.com/images/Items/Cmedia/hs100_002.JPG
> 
> If there is no GPIO on this chip, is there any reason hamvoip supports it?
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