IOC_OUT 52 include/sys/ioctl.h #define IOC_INOUT (IOC_IN|IOC_OUT) IOC_OUT 62 include/sys/ioctl.h #define _IOR(g,n,t) _IOC(IOC_OUT, (g), (n), sizeof(t)) IOC_OUT 67 include/sys/ioctl.h #define _IORN(g,n,t) _IOC((IOC_OVAL|IOC_OUT), (g), (n), sizeof(t)) IOC_OUT 65 usr/lib/posix/file/ioctl.c (cmd & IOC_OUT && (cmd & IOC_OVAL) == 0 && argp == NULL)) { IOC_OUT 89 usr/lib/posix/file/ioctl.c if (cmd & IOC_OUT) {