_IOWR 51 arch/alpha/include/uapi/asm/ioctl.h #define _IOWR(type,nr,size) _IOC(_IOC_READ|_IOC_WRITE,(type),(nr),sizeof(size)) _IOWR 48 arch/sparc/include/uapi/asm/ioctl.h #define _IOWR(type,nr,size) _IOC(_IOC_READ|_IOC_WRITE,(type),(nr),sizeof(size)) _IOWR 27 drivers/scsi/dpt/dpti_ioctl.h # define _IOWR(x,y,z) (((x)<<8)|y) _IOWR 88 include/uapi/asm-generic/ioctl.h #define _IOWR(type,nr,size) _IOC(_IOC_READ|_IOC_WRITE,(type),(nr),(_IOC_TYPECHECK(size)))