試試這個
intspeaker(unsignedintfreq,unsignedintdelay)?{staticintflag=0,bit;?
if(flag==0)?
{?
flag=1;?
iopl(3);?
}?
outb(0xb6,0x43);?
outb((freq&0xff),0x42);?
outb((freq>>8),0x42);?
bit=inb(0x61);?
outb(3|bit,0x61);?
usleep(10000*delay);?
outb(0xfc|bit,0x61);?
}?
#include<sys/io.h>?
#include<unistd.h>?
main()?
{?
int?i;
for(i?=?0;?i<1;?i++)?
{?
speaker(?2000,40?);
sleep(2);
}?
speaker(?1000,40?);?
}
希望對妳有幫助。