Comment 10 for bug 300143

Looking at our own patched kernel sources, it looks like we report BTN_TOUCH only for TabletPC. Which may actually be correct.

In that case, though, we also need to augment the blacklist in joydev, which is currently still just:

static const struct input_device_id joydev_blacklist[] = {
        {
                .flags = INPUT_DEVICE_ID_MATCH_EVBIT |
                                INPUT_DEVICE_ID_MATCH_KEYBIT,
                .evbit = { BIT_MASK(EV_KEY) },
                .keybit = { [BIT_WORD(BTN_TOUCH)] = BIT_MASK(BTN_TOUCH) },
        }, /* Avoid itouchpads, touchscreens and tablets */
        { } /* Terminating entry */
};