Adrian Caspersz wrote:

https://the-sz.com/products/usbid/in...34&p=0x0105&n=

iSoft Silicon, Inc. (defunct website)

https://web.archive.org/web/20190122...oducts_01.html

"IS-821
USB stereo ADC, stereo line-in and mono MIC-in, I2C interface, 28-pin
SSOP pack"

Bit of a dead end, but that site says

"Soft?s audio chips are fully compatible the USB plug-and-play profile.
Under most OS platforms, there is no private driver required."

However for electrical specs, pinout etc, I've drawn a blank.


Hmmm. The last reply from tech support was "... we don't quite understand what the question you are asking means".

Maybe it's absurd, but it makes me wonder if the device is a Trojan.
No....that's too clever....

Thanks for humoring me,

bob prohaska