UMDF can not pass a stucture with pointers?
in [Device Drivers]
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From: gti4ever on 31 Dec 2009 22:54 Oops, there is a typo in my previous post, the correct DeviceIoControl code should be: DeviceIoControl((HANDLE) handle, IOCTL_VENDOR_REQUEST_EX, (LPVOID) vr, // Ptr to InBuffer dwInSize, // Length of InBuffer NULL, // Ptr to OutBuffer 0, // Length of OutBuffer (LPDWORD) &nBytesRead, 0);
From: gti4ever on 4 Jan 2010 21:40 Doron, you are the man! I checked my code and found I did forget to return the proper size when calling WdfRequestCompleteWithInformation(). Thank you Doron and Don for the answers and helps, my new driver is up and running now. I am still curious to see how UMDF handles METHOD_NEITHER, but that is low priority now. G. "Doron Holan [MSFT]" wrote: > how are you calling WdfRequestComplete? are you passing the sizse of the > structure as the information? are you passing the buffer here as an input > or output buffer to the KMDF driver? > > d > > -- > > This posting is provided "AS IS" with no warranties, and confers no rights. > >
From: Doron Holan [MSFT] on 5 Jan 2010 12:55
method neither is not supported by UMDF at all d -- This posting is provided "AS IS" with no warranties, and confers no rights. "gti4ever" <gti4ever(a)discussions.microsoft.com> wrote in message news:C9C82D72-9A83-456E-9149-522A08859BFC(a)microsoft.com... > Doron, you are the man! I checked my code and found I did forget to return > the proper size when calling WdfRequestCompleteWithInformation(). > > Thank you Doron and Don for the answers and helps, my new driver is up and > running now. > > I am still curious to see how UMDF handles METHOD_NEITHER, but that is low > priority now. > > G. > > "Doron Holan [MSFT]" wrote: > >> how are you calling WdfRequestComplete? are you passing the sizse of the >> structure as the information? are you passing the buffer here as an >> input >> or output buffer to the KMDF driver? >> >> d >> >> -- >> >> This posting is provided "AS IS" with no warranties, and confers no >> rights. >> >> > |