HCT with Virtual Com port


N

Najas

Hi,

I have a USB device having functional driver that creates a virtual com
port. While running tests in the Unclassified category i get the error
during media check:
Error reading com port. Please verifiy there is either a modem or loopback
device attached to the com port and it is working preperly.
But in my case, it wont be possible to attach a modem or a loopback
connection as the port is virtual. My device doesnt support loopback. Is it
necessay that the virtual com port device support loopback to pass these
tests, or are there some other alternatives.

Thanks,
Najas
 
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C

cd

You would have to get a contingency from WHQL, but it may be easier to have
a registry parameter that makes your virtual COM port appear to have a
loopback connector attached to it. Contingencies take a long time to get
since they are a legal document that the OS group has to agree to.
 
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R

Robert Harper [MSFT]

Hi Najas,

You should contact MCTHelp @ Microsoft.com. They own the test support for
COM ports and should be able to help you.
You will most likely be required to implement the loopback.

Thanks,
Robert Harper
WHQLNET @ Microsoft.com
 

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