Switching between ActiveSync or Mass Storage

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Casper - 17 Jun 2008 08:07 GMT

Our BSP can supports either ActiveSync or MSC by modifying register at
compile-time. We like to make it to be switchable in run-time.

Casper

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CodeFox - 17 Jun 2008 09:38 GMT

You can use the IOCTL IOCTL_UFN_CHANGE_CURRENT_CLIENT on the USB function
controller to change the current function driver.

http://msdn.microsoft.com/en-us/library/ms895475.aspx

If you need it you may be able to use the composite USB driver which should
allow ActiveSync and MSC at the same time:

http://msdn.microsoft.com/en-us/library/aa909606.aspx

> Our BSP can supports either ActiveSync or MSC by modifying register at
> compile-time. We like to make it to be switchable in run-time.
>
> Casper

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Casper - 18 Jun 2008 02:47 GMT

I find this link with code in this link. I am trying it now. Thanks

Casper

http://tw.myblog.yahoo.com/ken-sena/article?mid=15&prev=19&next=12

> You can use the IOCTL IOCTL_UFN_CHANGE_CURRENT_CLIENT on the USB function
> controller to change the current function driver.
[quoted text clipped - 10 lines]
> >
> > Casper

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GSR - 26 Jun 2008 16:27 GMT

Hi Casper,

How can I send IOCTLs to USB Device.

Is it the same way by using
CreateFile(TEXT("UFN1:"),GENERIC_READ,0, NULL, OPEN_EXISTING,
FILE_ATTRIBUTE_NORMAL,NULL);

But it always fails I mean the Handle returned is always a NULL value.

By the way what is this
LPCTSTR pszBusGuid = _T("E2BDC372-598F-4619-BC50-54B3F7848D35");

In the code written by Henrik Viklund.

Regards,
Sudheer

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Zebra - 11 Jul 2008 04:45 GMT

What we did before is to unload the USB activesync driver, change the
registry at run-time, then
load the USB mass storage driver, it works well.

-Zebra,
MVP @ TECHWARE

> Our BSP can supports either ActiveSync or MSC by modifying register at
> compile-time. We like to make it to be switchable in run-time.
>
> Casper

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GSR - 22 Jul 2008 17:29 GMT

Hi Zebra,

Thank You for the reply.

I observed that USB MDD is having some IOCOntrol's to change the clients.

Can we use the following IOCTL to change the Client driver as
"IOCTL_UFN_CHANGE_CURRENT_CLIENT"

Thank You & Regards,
GSR

> What we did before is to unload the USB activesync driver, change the
> registry at run-time, then
[quoted text clipped - 7 lines]
> >
> > Casper

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