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24 lines
622 B
C
24 lines
622 B
C
#ifndef __INCLUDE_DDK_IOCTRL_H
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#define __INCLUDE_DDK_IOCTRL_H
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#define CTL_CODE(Dev, Func, Meth, Acc) ( ((Dev)<<16) | ((Acc)<<14) | ((Func)<<2) | (Meth))
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/*#define DEVICE_TYPE_FROM_CTL_CODE(ctlCode) (((ULONG)(ctlCode&0xffff0000))>>16) */
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/*#define IO_METHOD_FROM_CTL_CODE(ctlCode) (ctlCode&0x00000003) */
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/* IOCTL Parameter buffering methods */
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#define METHOD_BUFFERED 0
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#define METHOD_IN_DIRECT 1
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#define METHOD_OUT_DIRECT 2
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#define METHOD_NEITHER 3
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/* IOCTL File access type */
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#define FILE_ANY_ACCESS 0
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#define FILE_READ_ACCESS 1
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#define FILE_WRITE_ACCESS 2
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#endif /* __INCLUDE_DDK_IOCTRL_H */
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