https://github.com/torvalds/linux
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Tip revision: e19b205be43d11bff638cad4487008c48d21c103 authored by Linus Torvalds on 24 September 2017, 23:38:56 UTC
Linux 4.14-rc2
Tip revision: e19b205
pcspeaker.c
#include <linux/platform_device.h>
#include <linux/err.h>
#include <linux/init.h>

static __init int add_pcspkr(void)
{
	struct platform_device *pd;

	pd = platform_device_register_simple("pcspkr", -1, NULL, 0);

	return IS_ERR(pd) ? PTR_ERR(pd) : 0;
}
device_initcall(add_pcspkr);
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