tag
line
file
source code
IOC_VOID
75
drivers/sound/soundcard.h
#define _IO(x,y) ((int)(IOC_VOID|(x<<8)|y))
IOC_VOID
33
include/linux/ioctl.h
#define _IO(c,d) (IOC_VOID | ((c)<<8) | (d)) /* param encoded */