71 lines
2.6 KiB
C
71 lines
2.6 KiB
C
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/*++
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Copyright (c) 2000,2001 Microsoft Corporation
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Module Name:
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smblite.h
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Abstract: Contains SMBus Back Light IOCTL definitions.
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Environment:
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User/Kernel mode
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Author:
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Michael Tsang (MikeTs) 11-Jan-2001
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Revision History:
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--*/
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#ifndef _SMBLITE_H
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#define _SMBLITE_H
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//
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// Constants
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//
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#define BRIGHTNESS_MIN 0
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#define BRIGHTNESS_MAX 63
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#define SMBLITE_IOCTL_DEVNAME TEXT("\\\\.\\SMBusBackLight")
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#define IOCTL_SMBLITE_GETBRIGHTNESS CTL_CODE(FILE_DEVICE_UNKNOWN, \
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0, \
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METHOD_NEITHER, \
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FILE_ANY_ACCESS)
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#define IOCTL_SMBLITE_SETBRIGHTNESS CTL_CODE(FILE_DEVICE_UNKNOWN, \
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1, \
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METHOD_NEITHER, \
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FILE_ANY_ACCESS)
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typedef struct _SMBLITE_BRIGHTNESS
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{
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UCHAR bACValue; //Brightness value when on AC
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UCHAR bDCValue; //Brightness value when on DC
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} SMBLITE_BRIGHTNESS, *PSMBLITE_BRIGHTNESS;
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typedef struct _SMBLITE_SETBRIGHTNESS
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{
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SMBLITE_BRIGHTNESS Brightness;
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BOOLEAN fSaveSettings;
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} SMBLITE_SETBRIGHTNESS, *PSMBLITE_SETBRIGHTNESS;
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#ifdef SYSACC
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#define IOCTL_SYSACC_MEM_REQUEST CTL_CODE(FILE_DEVICE_UNKNOWN, \
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1000, \
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METHOD_NEITHER, \
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FILE_ANY_ACCESS)
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#define IOCTL_SYSACC_IO_REQUEST CTL_CODE(FILE_DEVICE_UNKNOWN, \
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1001, \
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METHOD_NEITHER, \
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FILE_ANY_ACCESS)
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#define IOCTL_SYSACC_PCICFG_REQUEST CTL_CODE(FILE_DEVICE_UNKNOWN, \
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1002, \
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METHOD_NEITHER, \
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FILE_ANY_ACCESS)
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#define IOCTL_SYSACC_SMBUS_REQUEST CTL_CODE(FILE_DEVICE_UNKNOWN, \
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1003, \
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METHOD_BUFFERED, \
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FILE_ANY_ACCESS)
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#endif
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#endif //ifndef _SMBLITE_H
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