From mboxrd@z Thu Jan  1 00:00:00 1970
From: Paul Cercueil <pcercuei@gmail.com>
Subject: kernel panic on gpio-keys
Date: Wed, 11 Dec 2013 20:17:29 +0100
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To: linux-input@vger.kernel.org
Cc: dmitry.torokhov@gmail.com

Hi there,

I am trying to use the gpio-keys driver to inject joystick events.
There seems to be some basic support of it, looking at <linux/gpio_keys.h>.

However, registering the following will trigger a kernel panic in the 
kernel:

static struct gpio_keys_button my_buttons[] {
	{
		.gpio = GPIO_FOO,
		.type = EV_ABS,
		.code = ABS_HAT0X,
		.value = 1,
	},
};

(tested on kernel 3.12).

I don't know well the input subsystem, so I have no idea of what is 
going wrong. Could anybody try to at least reproduce the issue?

Regards.