_IOC_READ - FreeBSD

186

#define _IOR(a,b,c) _IOC(_IOC_READ,(a),(b),sizeof(c))

187

#define _IOWR(a,b,c) _IOC(_IOC_READ|_IOC_WRITE,(a),(b),sizeof(c))

82

#define _IORV(type,nr,size) _IOCV(_IOC_READ,(type),(nr),sizeof(size))

84

#define _IOWRV(type,nr,size) _IOCV(_IOC_READ|_IOC_WRITE,(type),(nr),sizeof(size))

95

#define IOCV_OUT (_IOC_READ << _IOC_DIRSHIFT)

96

#define IOCV_INOUT ((_IOC_WRITE|_IOC_READ) << _IOC_DIRSHIFT)