gpio_keys.c änderungen für die überprüfung
----schnipp----
	input = input_allocate_device();
	if (!input)
		return -ENOMEM;

	platform_set_drvdata(pdev, input);
    
    
printk("pdata->nbuttons = %i\n",pdata->nbuttons);
printk("pdata->buttons[0].keycode = %i\n",pdata->buttons[0].keycode);
printk("pdata->buttons[0].gpio = %i\n",pdata->buttons[0].gpio);
printk("pdata->buttons[0].active_low = %i\n",pdata->buttons[0].active_low);
printk("pdata->buttons[0].desc = %s\n",pdata->buttons[0].desc);

	input->evbit[0] = BIT(EV_KEY);

	input->name = pdev->name;
	input->phys = "gpio-keys/input0";
----schanapp--------

code in simpad.c 

-----schnipp---------
	PMCR = PMCR_SF;
	while(1);

	local_irq_enable(); /* we won't ever call it */


}


/*
 * gpio_keys
*/

static struct gpio_keys_button simpad_button_table[] = {
	{ KEY_POWER, GPIO_POWER_BUTTON, 1, "power button" },
};

static struct gpio_keys_platform_data simpad_keys_data = {
	.buttons = simpad_button_table,
	.nbuttons = ARRAY_SIZE(simpad_button_table),
};

static struct platform_device simpad_keys = {
	.name = "gpio-keys",
	.dev = {
		.platform_data = &simpad_keys_data,
	},
};

/*
 * MediaQ Video Device
 */
static struct platform_device simpad_mq200fb = {
	.name = "simpad-mq200",
	.id   = 0,
};
-----schnapp-------