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From: PRANAV KANT GAUR on 12 Apr 2010 06:58
Is it possible to replace USBSTOR.sys?
How can we start developing driver to replace USBSTOR.sys?
What are the responsibilities of USBSTOR.sys that must be fulfilled to be
able to replace it?
From: Maxim S. Shatskih on 12 Apr 2010 16:08
> Is it possible to replace USBSTOR.sys?

ImagePath registry value.

> What are the responsibilities of USBSTOR.sys that must be fulfilled to be
> able to replace it?

Conversion of SCSI CDBs to USBSTOR URBs
Enumeration of the child devnode for the storage LUN
Supporting all IOCTLs the storage port driver should

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

From: PRANAV KANT GAUR on 13 Apr 2010 02:07


"Maxim S. Shatskih" wrote:

> > Is it possible to replace USBSTOR.sys?
>
> ImagePath registry value.
>
> > What are the responsibilities of USBSTOR.sys that must be fulfilled to be
> > able to replace it?
>
> Conversion of SCSI CDBs to USBSTOR URBs
> Enumeration of the child devnode for the storage LUN
> Supporting all IOCTLs the storage port driver should
>
> --
> Maxim S. Shatskih
> Windows DDK MVP
> maxim(a)storagecraft.com
> http://www.storagecraft.com
>
> .
But my device manager shows that i have IDE ATA/ATAPI controllers & no
SCSI controllers it means no SCSI interface,so should i perform the
transformation from USBSTOR URB'S to IDE command set queries.
From: matt_sykes on 13 Apr 2010 04:42
On 13 Apr, 08:07, PRANAV KANT GAUR
<PRANAVKANTG...(a)discussions.microsoft.com> wrote:
> "Maxim S. Shatskih" wrote:
> > > Is it possible to replace USBSTOR.sys?
>
> > ImagePath registry value.
>
> > > What are the responsibilities of USBSTOR.sys that must be fulfilled to be
> > > able to replace it?
>
> > Conversion of SCSI CDBs to USBSTOR URBs
> > Enumeration of the child devnode for the storage LUN
> > Supporting all IOCTLs the storage port driver should
>
> > --
> > Maxim S. Shatskih
> > Windows DDK MVP
> > ma...(a)storagecraft.com
> >http://www.storagecraft.com
>
> > .
>
> But my device manager shows that  i  have IDE ATA/ATAPI controllers & no
> SCSI controllers it means no SCSI interface,so should i perform the
> transformation from  USBSTOR URB'S to IDE command set queries.- Hide quoted text -
>
> - Show quoted text -

You asked. and one of the best guys on the forum answered. If I were
you I would think carefullt about what Maxim wrote, and your questiob,
and see if you can work out why your question is worng.
From: PRANAV KANT GAUR on 13 Apr 2010 07:14


"matt_sykes" wrote:

> On 13 Apr, 08:07, PRANAV KANT GAUR
> <PRANAVKANTG...(a)discussions.microsoft.com> wrote:
> > "Maxim S. Shatskih" wrote:
> > > > Is it possible to replace USBSTOR.sys?
> >
> > > ImagePath registry value.
> >
> > > > What are the responsibilities of USBSTOR.sys that must be fulfilled to be
> > > > able to replace it?
> >
> > > Conversion of SCSI CDBs to USBSTOR URBs
> > > Enumeration of the child devnode for the storage LUN
> > > Supporting all IOCTLs the storage port driver should
> >
> > > --
> > > Maxim S. Shatskih
> > > Windows DDK MVP
> > > ma...(a)storagecraft.com
> > >http://www.storagecraft.com
> >
> > > .
> >
> > But my device manager shows that i have IDE ATA/ATAPI controllers & no
> > SCSI controllers it means no SCSI interface,so should i perform the
> > transformation from USBSTOR URB'S to IDE command set queries.- Hide quoted text -
> >
> > - Show quoted text -
>
> You asked. and one of the best guys on the forum answered. If I were
> you I would think carefullt about what Maxim wrote, and your questiob,
> and see if you can work out why your question is worng.
> .
Since ATA packet interface uses SCSI Command set,so even if i have IDE
ATA/ATAPI interface I need to perform USBSTOR's URB to SCSI command set
conversion.
Please correct me if i am still interpreting anything wrongly.
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