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[/] [or1k/] [trunk/] [uclinux/] [uClinux-2.0.x/] [include/] [asm-sparc/] [ioctl.h] - Rev 1765
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/* $Id: ioctl.h,v 1.1.1.1 2001-09-10 07:44:43 simons Exp $ */ #ifndef _SPARC_IOCTL_H #define _SPARC_IOCTL_H #define _IOC_NRBITS 8 #define _IOC_TYPEBITS 8 #define _IOC_SIZEBITS 8 #define _IOC_RESVBITS 5 #define _IOC_DIRBITS 3 #define _IOC_NRMASK ((1 << _IOC_NRBITS)-1) #define _IOC_TYPEMASK ((1 << _IOC_TYPEBITS)-1) #define _IOC_RESVMASK ((1 << _IOC_RESVBITS)-1) #define _IOC_SIZEMASK ((1 << _IOC_SIZEBITS)-1) #define _IOC_DIRMASK ((1 << _IOC_DIRBITS)-1) #define _IOC_NRSHIFT 0 #define _IOC_TYPESHIFT (_IOC_NRSHIFT + _IOC_NRBITS) #define _IOC_SIZESHIFT (_IOC_TYPESHIFT + _IOC_TYPEBITS) #define _IOC_RESVSHIFT (_IOC_SIZESHIFT + _IOC_SIZEBITS) #define _IOC_DIRSHIFT (_IOC_RESVSHIFT + _IOC_RESVBITS) #define _IOC_NONE 1U #define _IOC_READ 2U #define _IOC_WRITE 4U #define _IOC(dir,type,nr,size) \ (((dir) << _IOC_DIRSHIFT) | \ ((type) << _IOC_TYPESHIFT) | \ ((nr) << _IOC_NRSHIFT) | \ ((size) << _IOC_SIZESHIFT)) #define _IO(type,nr) _IOC(_IOC_NONE,(type),(nr),0) #define _IOR(type,nr,size) _IOC(_IOC_READ,(type),(nr),sizeof(size)) #define _IOW(type,nr,size) _IOC(_IOC_WRITE,(type),(nr),sizeof(size)) #define _IORW(type,nr,size) _IOC(_IOC_READ|_IOC_WRITE,(type),(nr),sizeof(size)) #define _IOC_DIR(nr) (((nr) >> _IOC_DIRSHIFT) & _IOC_DIRMASK) #define _IOC_TYPE(nr) (((nr) >> _IOC_TYPESHIFT) & _IOC_TYPEMASK) #define _IOC_NR(nr) (((nr) >> _IOC_NRSHIFT) & _IOC_NRMASK) #define _IOC_SIZE(nr) (((nr) >> _IOC_SIZESHIFT) & _IOC_SIZEMASK) #endif /* !(_SPARC_IOCTL_H) */