Hi,

It would be of great help if any one could answer my query.

We plan to have our Driver set(Here "Driver set" by me means 1. Usbser.sys
-windows provided 2. URSerialUSB.INF - I generated/created it to fit our USB
device functionality) digitally signed by MS so as to support VISTA.
Regarding this I have a doubt:
- Is there anything like the 'Device Class' which we mentioned in an .INF
file, should be matching the same as that of the feild supplied by USB Device
descriptor to get an digital certification ?

To be in specific, My USB Device shows baseclass as CDC -0x02; But I used
'Modem' as the Class to mention in .INF;
JFYI* : CDC is a composite device class and MODEM is one of its subclass.
Also ACM/Ports etc..are subclasses for CDC.

To consolidate my question : Will it be a issue to get digital certification
from MS to support Vista when the USB device's class is different to that of
the one which we specify in .INF file. (Given the thing that, my purpose of
accessing the USB device is working fine on Windows 2000/XP/Vista with
minimal Authentication message blocks while installation of the driver)

Ur help is appreciated.


--
Thanks in advance,
Shankar G.