SIOC_OUT 115 include/linux/soundcard.h #define SIOC_INOUT (SIOC_IN|SIOC_OUT) SIOC_OUT 118 include/linux/soundcard.h #define _SIOR(x,y,t) ((int)(SIOC_OUT|((sizeof(t)&SIOCPARM_MASK)<<16)|(x<<8)|y)) SIOC_OUT 125 include/linux/soundcard.h #define _SIOC_READ SIOC_OUT SIOC_OUT 356 sound/core/oss/mixer_oss.c } else if (cmd & SIOC_OUT) {