96 #define _IOC(dir, type, nr, size)    \  argument
99         ((nr) << _IOC_NRSHIFT) |  \
117 #define _IO(type, nr)        _IOC(_IOC_NONE, (type), (nr), 0)  argument
121 #define _IOR(type, nr, size)    _IOC(_IOC_READ, (type), (nr), (_IOC_TYPECHECK(size)))  argument
125 #define _IOW(type, nr, size)    _IOC(_IOC_WRITE, (type), (nr), (_IOC_TYPECHECK(size)))  argument
129 #define _IOWR(type, nr, size)    _IOC(_IOC_READ | _IOC_WRITE, (type), (nr), (_IOC_TYPECHECK(size)))  argument
133 #define _IOR_BAD(type, nr, size)    _IOC(_IOC_READ, (type), (nr), sizeof(size))  argument
137 #define _IOW_BAD(type, nr, size)    _IOC(_IOC_WRITE, (type), (nr), sizeof(size))  argument
141 #define _IOWR_BAD(type, nr, size)    _IOC(_IOC_READ | _IOC_WRITE, (type), (nr), sizeof(size))  argument
147 #define _IOC_DIR(nr)        (((nr) >> _IOC_DIRSHIFT) & _IOC_DIRMASK)  argument
152 #define _IOC_TYPE(nr)        (((nr) >> _IOC_TYPESHIFT) & _IOC_TYPEMASK)  argument
156 #define _IOC_NR(nr)        (((nr) >> _IOC_NRSHIFT) & _IOC_NRMASK)  argument
160 #define _IOC_SIZE(nr)        (((nr) >> _IOC_SIZESHIFT) & _IOC_SIZEMASK)  argument