IOC_IN
if ((cmd & IOC_IN) == 0)
(cmd & IOC_IN) ? "W" : "", (cmd & IOC_OUT) ? "R" : "",
if (SCARG(uap, com) & IOC_IN)
com |= IOC_IN;
if (SCARG(uap, com) & IOC_IN)
com |= IOC_IN;
if (SCARG(uap, com) & IOC_IN)
com |= IOC_IN;
if (com&IOC_IN) {
if (cmd & IOC_IN)
if (com&IOC_IN) {
(com & IOC_IN) ? "W" : "", (com & IOC_OUT) ? "R" : "",
if ((cmd & IOC_IN) == 0 || IOCPARM_LEN(cmd) < sizeof(ifr->ifr_name))
#define IOC_INOUT (IOC_IN|IOC_OUT)
#define _IOW(g,n,t) _IOC(IOC_IN, (g), (n), sizeof(t))
if (cmd & IOC_IN)
if (cmd & IOC_IN)