USB Serial cable with CDC support
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by Harsha
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Published on 2010-03-23T04:12:29Z
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2010/03/23
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Hi All,
I bought a USB to Serial cable which claims to be CDC compliant.
But the bInterfaceClass value in interface descriptor is 0xFF(which is vendor specific). I was expecting it to be 0x02 (Communications and CDC control).
In the device manager, i found that the drivers being loaded are ser2pl.sys and serenum.sys. I had learnt usbser.sys is the windows CDC driver, but it was not loaded for my cable.
I am pretty much new to this CDC, so i have following questions
1.Does this indicate that the cable is not CDC compliant 2.Can i make this cable CDC compliant (since CDC is a driver functionality), by loading usbser.sys. If yes how?
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