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_IOC_TYPEBITS21include/asm-alpha/ioctl.h#define _IOC_TYPEMASK  ((1 << _IOC_TYPEBITS)-1)
_IOC_TYPEBITS27include/asm-alpha/ioctl.h#define _IOC_SIZESHIFT  (_IOC_TYPESHIFT+_IOC_TYPEBITS)
_IOC_TYPEBITS67include/asm-i386/ioctl.h#define _IOC_TYPEMASK  ((1 << _IOC_TYPEBITS)-1)
_IOC_TYPEBITS73include/asm-i386/ioctl.h#define _IOC_SIZESHIFT  (_IOC_TYPESHIFT+_IOC_TYPEBITS)