#include <ctype.h>
#include <stdlib.h>
#include <stdio.h>
#include <sys/time.h>
#include <mach/mach_port.h>
#include <mach/mach_interface.h>
#include <mach/mach_init.h>
#include <CoreFoundation/CoreFoundation.h>
#include <IOKit/pwr_mgt/IOPM.h>
#include <IOKit/pwr_mgt/IOPMLibPrivate.h>
int
main(int argc, char **argv)
{
kern_return_t kr;
CFTypeRef obj;
io_registry_entry_t regEntry;
regEntry = IORegistryEntryFromPath(kIOMasterPortDefault,
kIOServicePlane ":/IOResources/IODisplayWrangler");
obj = CFRetain(kCFBooleanTrue);
if (argc > 1)
{
SInt32 num = 1000 * strtol(argv[1], 0, 0);
obj = CFNumberCreate(kCFAllocatorDefault, kCFNumberSInt32Type, &num);
}
kr = IORegistryEntrySetCFProperty(regEntry, CFSTR("IORequestIdle"), obj);
printf("IORegistryEntrySetCFProperty(IORequestIdle) 0x%x\n", kr);
CFRelease(obj);
IOObjectRelease(regEntry);
return (0);
}