/arch/x86/kernel/pcspeaker.c

 1#include <linux/platform_device.h>
 2#include <linux/err.h>
 3#include <linux/init.h>
 4
 5static __init int add_pcspkr(void)
 6{
 7	struct platform_device *pd;
 8
 9	pd = platform_device_register_simple("pcspkr", -1, NULL, 0);
10
11	return IS_ERR(pd) ? PTR_ERR(pd) : 0;
12}
13device_initcall(add_pcspkr);