[wdmaudiodev] Re: build problem
- From: "David A. Hoatson" <dhoatson@xxxxxxx>
- To: <wdmaudiodev@xxxxxxxxxxxxx>
- Date: Tue, 4 Nov 2003 10:38:39 -0800
Oops - just noticed that you were using READ_PORT_ - not READ_REGISTER_.
Sorry about that!
Have you tried just hard coding the assembler for reading the port into the
DLL? It has been too many years since I had to write to a device that used
ports!
Thank you,
David A. Hoatson
----- Original Message -----
From: "David A. Hoatson" <dhoatson@xxxxxxx>
To: <wdmaudiodev@xxxxxxxxxxxxx>
Sent: Tuesday, November 04, 2003 10:32 AM
Subject: Re: [wdmaudiodev] build problem
> Hello,
>
> You would have to write a kernel mode stub driver that mapped the
hardware
> address space into user mode space. Then you can read and write directly
> to the hardware from the DLL.
>
> See: ZwMapViewOfSection
>
> As I recall, there is an example driver "MapMem" (or some such thing) in
> the DDK source.
>
> Thank you,
>
> David A. Hoatson
>
> ----- Original Message -----
> From: "Victor V Lyamtsev" <vvl@xxxxxxxxxxxxx>
> To: <wdmaudiodev@xxxxxxxxxxxxx>
> Sent: Tuesday, November 04, 2003 7:29 AM
> Subject: [wdmaudiodev] build problem
>
>
> > I wonder if code with I/O space read and write macros ( like
> > READ_PORT_ULONG ) can be built into dll;
> > I saw DDK examples where it was built into static lib, but all my
> attempts
> > to build it into dll resulted in
> > "Macro redefinition" errors. Can it be done?
> >
> > SOURCES
> >
> > TARGETNAME=testdll
> > TARGETTYPE=DYNLINK
> > TARGETPATH=obj
> > TARGETEXT=dll
> > DLLENTRY=LibMain
> >
> > C_DEFINES= $(C_DEFINES) -D_WIN32 -DUNICODE -D_UNICODE -DUNDER_NT
> >
> > LINKER_FLAGS=-map
> >
> > INCLUDES= \
> > ..\inc; \
> > $(DDK_INC_PATH); \
> > $(WDM_INC_PATH);
> >
> > MSC_WARNING_LEVEL=-W3 -WX
> >
> > SOURCES=\
> > testdll.c\
> >
> >
>
///////////////////////////////////////////////////////////////////////////
> ////
> > //////////// testdll.c
> ///////////////////////////////////////////////////
> >
> > #include "wdm.h"
> > #include <windows.h>
> >
> > HANDLE g_hInst;
> > BOOL APIENTRY LibMain( HANDLE hDll, DWORD dwReason, LPVOID lpReserved )
> > {
> > switch( dwReason )
> > {
> > case DLL_PROCESS_ATTACH:
> > g_hInst = hDll;
> >
> > break;
> >
> > case DLL_PROCESS_DETACH:
> > break;
> >
> > default:
> > break;
> > }
> >
> > return TRUE;
> > }
> >
> >
> >
> > ******************
> >
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>
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