On Sun, Dec 20, 2009 at 12:36:23AM +0100, Johannes Ebke wrote:
> Hi,
>
> It seems that the force feedback works well, I have ported the force
> feedback for my favorite game to linux now, and it works well.
>
> What does not work is updating effects - there just nothing happens, and
> the old event is played. I have circumvented this by
> deleting/re-uploading the effect, but this should probably been made to
> work. Does it work well with other hardware?
>
> Thirdly, I have re-discovered one kernel oops that occurs if the
> joystick is unplugged if some process still has the event device open.
> Steps to reproduce:
> * plug joystick in
> * fftest /dev/input/eventXX
> * unplug joystick
>
> (kern.log extract attached)
>
> Sometimes this just gives an oops, sometimes it escalates into a kernel
> panic.
>
Hmm, it looks like iforce unbinding is completely busted:
static void iforce_usb_disconnect(struct usb_interface *intf)
{
struct iforce *iforce = usb_get_intfdata(intf);
int open = 0; /* FIXME! iforce->dev.handle->open; */
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
usb_set_intfdata(intf, NULL);
if (iforce) {
iforce->usbdev = NULL;
input_unregister_device(iforce->dev);
if (!open) {
iforce_delete_device(iforce);
kfree(iforce);
}
}
}
Any chance you could fix that FIXME ;) ?
--
Dmitry
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