Re: Beginer - Where to start?

more then likely the modem implemented the usb CDC (communication device class) specification. download the CDC spec from http://usb.org. i would also suggest you get the KMDF book and learn KMDF, it will drastically shorten your dev time. of course if they driver does nto comply to the cdc spec, you have to ask the vendor for the interface spec.

d

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"MdmDriver" <MdmDriver@xxxxxxxxxxxxxxx> wrote in message news:ex1xlraCIHA.3612@xxxxxxxxxxxxxxxxxxxxxxx
Hi Everyone,

I have a usb modem and driver provided by the vendor, both are working fine on WindowsXP.
For learning purpose, i want to develop a driver for this modem on Windows XP.
Prepartion i have done are as follows

I am a VC++ programer,
have read Jan Axelson's USB complete
have read few chapters from Windows driver model by Walter Oney
have knowledge about UART, Hayes AT modem commands, little bit about windows services
have windows xp ddk installed

now i wonder where to start and what should be the step by step approach for this ?

please advise me




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