NDIS WDF lower edge driver for MDLM interface

NTDEV
1

Hi,

I am developing a ndis-wdf lower edge driver for windows XP.( NDIS version 5.1)

Interface exposed by device is mobile direct line model (MDLM), one of its descriptor is Mobile Direct Line Model Functional Descriptor (WMC110.pdf sec 6.7.2.3).

I could not get any information(or significance) about the GUID referenced in this descriptor.
Also, there are some MDLM semantic model specific requests(60h-7fh) CDC120.pdf section 6.2 , table 19 .

where/How can i get information about these? Any links, material, calrification?

your help is much appriciated.

TIA