SDIO driver in User Mode?

NTDEV
1

I am new to driver development, please excuse my basic questions.

Is it possible to write a User-Mode SDIO driver that communicates to my
SDIO card via sdbus.sys? Is it possible to #include <ntddsd.h> and call
its APIs such as SdBusOpenInterface() in User-Mode? Or does it have to
be kernel-mode like in the sdmars example?

Including ntddsd.h in internal.h of the sample UMDF driver results in
some undefined structures, which as far as I can tell belong to KMD or
WDM.

Thanks

Rachel</ntddsd.h>

2

An sd driver needs to be km

d

debt from my phone

From: Michelson Rachel-CRK007
Sent: 11/10/2011 11:19 AM
To: Windows System Software Devs Interest List
Subject: [ntdev] SDIO driver in User Mode?

I am new to driver development, please excuse my basic questions.
Is it possible to write a User-Mode SDIO driver that communicates to my SDIO card via sdbus.sys? Is it possible to #include <ntddsd.h> and call its APIs such as SdBusOpenInterface() in User-Mode? Or does it have to be kernel-mode like in the sdmars example?
Including ntddsd.h in internal.h of the sample UMDF driver results in some undefined structures, which as far as I can tell belong to KMD or WDM.
Thanks
Rachel

—
NTDEV is sponsored by OSR

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3

Thank you. How come this is so? Why is having sdbus for kernel mode
driver not sufficient?

Any additional pointers on developing a SDIO driver will be appreciated.

I have read
http://msdn.microsoft.com/en-us/library/ff537945(v=VS.85).aspx

Rachel

From: xxxxx@lists.osr.com
[mailto:xxxxx@lists.osr.com] On Behalf Of Doron Holan
Sent: Thursday, November 10, 2011 1:22 PM
To: Windows System Software Devs Interest List
Subject: RE: [ntdev] SDIO driver in User Mode?

An sd driver needs to be km

d

debt from my phone

From: Michelson Rachel-CRK007
Sent: 11/10/2011 11:19 AM
To: Windows System Software Devs Interest List
Subject: [ntdev] SDIO driver in User Mode?

I am new to driver development, please excuse my basic questions.

Is it possible to write a User-Mode SDIO driver that communicates to my
SDIO card via sdbus.sys? Is it possible to #include <ntddsd.h> and call
its APIs such as SdBusOpenInterface() in User-Mode? Or does it have to
be kernel-mode like in the sdmars example?

Including ntddsd.h in internal.h of the sample UMDF driver results in
some undefined structures, which as far as I can tell belong to KMD or
WDM.

Thanks

Rachel

—
NTDEV is sponsored by OSR

For our schedule of WDF, WDM, debugging and other seminars visit:
http://www.osr.com/seminars

To unsubscribe, visit the List Server section of OSR Online at
http://www.osronline.com/page.cfm?name=ListServer

—
NTDEV is sponsored by OSR

For our schedule of WDF, WDM, debugging and other seminars visit:
http://www.osr.com/seminars

To unsubscribe, visit the List Server section of OSR Online at
http://www.osronline.com/page.cfm?name=ListServer</ntddsd.h>

4

Because the interface that the sdbus driver implements wasn’t designed to be used from user-mode. For example, the client is notified about interrupts using a callback function, which can’t be marshaled across the user/kernel boundary.

Out of curiosity, what is the device you’re working with?

-p

From: xxxxx@lists.osr.com [mailto:xxxxx@lists.osr.com] On Behalf Of Michelson Rachel-CRK007
Sent: Thursday, November 10, 2011 12:01 PM
To: Windows System Software Devs Interest List
Subject: RE: [ntdev] SDIO driver in User Mode?

Thank you. How come this is so? Why is having sdbus for kernel mode driver not sufficient?
Any additional pointers on developing a SDIO driver will be appreciated.
I have read http://msdn.microsoft.com/en-us/library/ff537945(v=VS.85).aspx
Rachel

From: xxxxx@lists.osr.commailto:xxxxx [mailto:xxxxx@lists.osr.com]mailto: On Behalf Of Doron Holan
Sent: Thursday, November 10, 2011 1:22 PM
To: Windows System Software Devs Interest List
Subject: RE: [ntdev] SDIO driver in User Mode?

An sd driver needs to be km

d

debt from my phone
________________________________
From: Michelson Rachel-CRK007
Sent: 11/10/2011 11:19 AM
To: Windows System Software Devs Interest List
Subject: [ntdev] SDIO driver in User Mode?
I am new to driver development, please excuse my basic questions.
Is it possible to write a User-Mode SDIO driver that communicates to my SDIO card via sdbus.sys? Is it possible to #include <ntddsd.h> and call its APIs such as SdBusOpenInterface() in User-Mode? Or does it have to be kernel-mode like in the sdmars example?
Including ntddsd.h in internal.h of the sample UMDF driver results in some undefined structures, which as far as I can tell belong to KMD or WDM.
Thanks
Rachel

—
NTDEV is sponsored by OSR

For our schedule of WDF, WDM, debugging and other seminars visit:
http://www.osr.com/seminars

To unsubscribe, visit the List Server section of OSR Online at http://www.osronline.com/page.cfm?name=ListServer

—
NTDEV is sponsored by OSR

For our schedule of WDF, WDM, debugging and other seminars visit:
http://www.osr.com/seminars

To unsubscribe, visit the List Server section of OSR Online at http://www.osronline.com/page.cfm?name=ListServer

—
NTDEV is sponsored by OSR

For our schedule of WDF, WDM, debugging and other seminars visit:
http://www.osr.com/seminars

To unsubscribe, visit the List Server section of OSR Online at http://www.osronline.com/page.cfm?name=ListServer</ntddsd.h></mailto:></mailto:xxxxx>

5

Thank you. It is a proprietary device.

From: xxxxx@lists.osr.com
[mailto:xxxxx@lists.osr.com] On Behalf Of Peter Wieland
Sent: Thursday, November 10, 2011 3:44 PM
To: Windows System Software Devs Interest List
Subject: RE: [ntdev] SDIO driver in User Mode?

Because the interface that the sdbus driver implements wasn’t designed
to be used from user-mode. For example, the client is notified about
interrupts using a callback function, which can’t be marshaled across
the user/kernel boundary.

Out of curiosity, what is the device you’re working with?

-p

From: xxxxx@lists.osr.com
[mailto:xxxxx@lists.osr.com] On Behalf Of Michelson
Rachel-CRK007
Sent: Thursday, November 10, 2011 12:01 PM
To: Windows System Software Devs Interest List
Subject: RE: [ntdev] SDIO driver in User Mode?

Thank you. How come this is so? Why is having sdbus for kernel mode
driver not sufficient?

Any additional pointers on developing a SDIO driver will be appreciated.

I have read
http://msdn.microsoft.com/en-us/library/ff537945(v=VS.85).aspx

Rachel

From: xxxxx@lists.osr.com
[mailto:xxxxx@lists.osr.com] On Behalf Of Doron Holan
Sent: Thursday, November 10, 2011 1:22 PM
To: Windows System Software Devs Interest List
Subject: RE: [ntdev] SDIO driver in User Mode?

An sd driver needs to be km

d

debt from my phone

From: Michelson Rachel-CRK007
Sent: 11/10/2011 11:19 AM
To: Windows System Software Devs Interest List
Subject: [ntdev] SDIO driver in User Mode?

I am new to driver development, please excuse my basic questions.

Is it possible to write a User-Mode SDIO driver that communicates to my
SDIO card via sdbus.sys? Is it possible to #include <ntddsd.h> and call
its APIs such as SdBusOpenInterface() in User-Mode? Or does it have to
be kernel-mode like in the sdmars example?

Including ntddsd.h in internal.h of the sample UMDF driver results in
some undefined structures, which as far as I can tell belong to KMD or
WDM.

Thanks

Rachel

—
NTDEV is sponsored by OSR

For our schedule of WDF, WDM, debugging and other seminars visit:
http://www.osr.com/seminars

To unsubscribe, visit the List Server section of OSR Online at
http://www.osronline.com/page.cfm?name=ListServer

—
NTDEV is sponsored by OSR

For our schedule of WDF, WDM, debugging and other seminars visit:
http://www.osr.com/seminars

To unsubscribe, visit the List Server section of OSR Online at
http://www.osronline.com/page.cfm?name=ListServer

—
NTDEV is sponsored by OSR

For our schedule of WDF, WDM, debugging and other seminars visit:
http://www.osr.com/seminars

To unsubscribe, visit the List Server section of OSR Online at
http://www.osronline.com/page.cfm?name=ListServer

—
NTDEV is sponsored by OSR

For our schedule of WDF, WDM, debugging and other seminars visit:
http://www.osr.com/seminars

To unsubscribe, visit the List Server section of OSR Online at
http://www.osronline.com/page.cfm?name=ListServer</ntddsd.h>