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@@ -1,31 +1,12 @@
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-//#define _IOC(a,b,c,d) ( ((a)<<29) | ((b)<<8) | (c) | ((d)<<16) )
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-//
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-#define _IOC_SIZEBITS 13
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-#define _IOC_DIRBITS 3
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-
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-#define _IOC_NRBITS 8
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-#define _IOC_TYPEBITS 8
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-
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-#define _IOC_NRSHIFT 0
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-#define _IOC_TYPESHIFT (_IOC_NRSHIFT+_IOC_NRBITS)
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-#define _IOC_SIZESHIFT (_IOC_TYPESHIFT+_IOC_TYPEBITS)
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-#define _IOC_DIRSHIFT (_IOC_SIZESHIFT+_IOC_SIZEBITS)
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-
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-#define _IOC(dir,type,nr,size) \
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- (((dir) << _IOC_DIRSHIFT) | \
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- ((type) << _IOC_TYPESHIFT) | \
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- ((nr) << _IOC_NRSHIFT) | \
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- ((size) << _IOC_SIZESHIFT))
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-
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-
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+#define _IOC(a,b,c,d) ( ((a)<<29) | ((b)<<8) | (c) | ((d)<<16) )
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#define _IOC_NONE 1U
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#define _IOC_WRITE 4U
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#define _IOC_READ 2U
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#define _IO(a,b) _IOC(_IOC_NONE,(a),(b),0)
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#define _IOW(a,b,c) _IOC(_IOC_WRITE,(a),(b),sizeof(c))
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-#define _IOR(a,b,c) _IOC(_IOC_READ ,(a),(b),sizeof(c))
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-#define _IOWR(a,b,c) _IOC(_IOC_READ | _IOC_WRITE,(a),(b),sizeof(c))
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+#define _IOR(a,b,c) _IOC(_IOC_READ,(a),(b),sizeof(c))
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+#define _IOWR(a,b,c) _IOC(_IOC_READ|_IOC_WRITE,(a),(b),sizeof(c))
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#define FIONCLEX _IO('f', 2)
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#define FIOCLEX _IO('f', 1)
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