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From: Joe on 22 Jul 2010 14:43
Hi all,

I'm attempting to come up to speed on KMDF and UMDF driver development. I'm
looking at developing a virtual disk/RAID driver. It seems that Storport fits
this scenario perfectly, please correct me if I am wrong.

My question is, are you able to write a Storport driver using UMDF? I have
not found anything explicitly saying that you must use KMDF.

Thanks,
Joe
From: Don Burn on 22 Jul 2010 14:58
No, you cannot use either UMDF. For a virtual storport, you can create a
"thin" storport with a driver below it that is KMDF to do the real work.
There is an excellent series of articles on virtual storport with sample
code at http://www.osronline.com/article.cfm?article=538 (note you will
need to create an account, no cost).


Don Burn (MVP, Windows DKD)
Windows Filesystem and Driver Consulting
Website: http://www.windrvr.com
Blog: http://msmvps.com/blogs/WinDrvr



> -----Original Message-----
> From: Joe [mailto:Joe(a)discussions.microsoft.com]
> Posted At: Thursday, July 22, 2010 2:44 PM
> Posted To: microsoft.public.development.device.drivers
> Conversation: UMDF and Storport
> Subject: UMDF and Storport
>
> Hi all,
>
> I'm attempting to come up to speed on KMDF and UMDF driver development.
> I'm
> looking at developing a virtual disk/RAID driver. It seems that Storport
> fits
> this scenario perfectly, please correct me if I am wrong.
>
> My question is, are you able to write a Storport driver using UMDF? I
> have not
> found anything explicitly saying that you must use KMDF.
>
> Thanks,
> Joe
>
>
> __________ Information from ESET Smart Security, version of virus
> signature
> database 5302 (20100722) __________
>
> The message was checked by ESET Smart Security.
>
> http://www.eset.com
>

From: Maxim S. Shatskih on 22 Jul 2010 15:22
> looking at developing a virtual disk/RAID driver. It seems that Storport fits
> this scenario perfectly, please correct me if I am wrong.

Yes. Note that XP has no Storport, it started in Srv2003.

> My question is, are you able to write a Storport driver using UMDF? I have
> not found anything explicitly saying that you must use KMDF.

Forget UMDF.

The lower egde of the virtual Storport driver can be KMDF, but only if you will use it in miniport mode.

--
Maxim S. Shatskih
Windows DDK MVP
maxim(a)storagecraft.com
http://www.storagecraft.com

From: Joe on 22 Jul 2010 16:39
Thanks Don. This looks like exactly what I need.

"Don Burn" wrote:

> No, you cannot use either UMDF. For a virtual storport, you can create a
> "thin" storport with a driver below it that is KMDF to do the real work.
> There is an excellent series of articles on virtual storport with sample
> code at http://www.osronline.com/article.cfm?article=538 (note you will
> need to create an account, no cost).
>
>
> Don Burn (MVP, Windows DKD)
> Windows Filesystem and Driver Consulting
> Website: http://www.windrvr.com
> Blog: http://msmvps.com/blogs/WinDrvr
>
>
>
> > -----Original Message-----
> > From: Joe [mailto:Joe(a)discussions.microsoft.com]
> > Posted At: Thursday, July 22, 2010 2:44 PM
> > Posted To: microsoft.public.development.device.drivers
> > Conversation: UMDF and Storport
> > Subject: UMDF and Storport
> >
> > Hi all,
> >
> > I'm attempting to come up to speed on KMDF and UMDF driver development.
> > I'm
> > looking at developing a virtual disk/RAID driver. It seems that Storport
> > fits
> > this scenario perfectly, please correct me if I am wrong.
> >
> > My question is, are you able to write a Storport driver using UMDF? I
> > have not
> > found anything explicitly saying that you must use KMDF.
> >
> > Thanks,
> > Joe
> >
> >
> > __________ Information from ESET Smart Security, version of virus
> > signature
> > database 5302 (20100722) __________
> >
> > The message was checked by ESET Smart Security.
> >
> > http://www.eset.com
 | 
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