On Sun, Nov 01, 2015 at 04:31:38PM +0100, Pavel Rojtberg wrote: > From: Pavel Rojtberg <rojtberg@xxxxxxxxx> > > the irq_out urb is dead after suspend/ resume on my x360 wr pad. (also > reproduced by Zachary Lund [0]) Work around this by resetting the usb > device on resume. Added suspend/ resume callbacks to do so. > > [0]: https://github.com/paroj/xpad/issues/6 > > Signed-off-by: Pavel Rojtberg <rojtberg@xxxxxxxxx> > --- > drivers/input/joystick/xpad.c | 30 ++++++++++++++++++++++++++---- > 1 file changed, 26 insertions(+), 4 deletions(-) > > diff --git a/drivers/input/joystick/xpad.c b/drivers/input/joystick/xpad.c > index f3754c7..e8dcc80 100644 > --- a/drivers/input/joystick/xpad.c > +++ b/drivers/input/joystick/xpad.c > @@ -1423,17 +1423,23 @@ err_free_mem: > > } > > -static void xpad_disconnect(struct usb_interface *intf) > +static void xpad_stop_communication(struct usb_xpad *xpad) > { > - struct usb_xpad *xpad = usb_get_intfdata (intf); > - > - xpad_deinit_output(xpad); > + xpad_stop_output(xpad); > > if (xpad->xtype == XTYPE_XBOX360W) { > usb_kill_urb(xpad->irq_in); > } > > cancel_work_sync(&xpad->work); > +} > + > +static void xpad_disconnect(struct usb_interface *intf) > +{ > + struct usb_xpad *xpad = usb_get_intfdata(intf); > + > + xpad_stop_communication(xpad); > + xpad_deinit_output(xpad); > > if (xpad->pad_present) > xpad_deinit_input(xpad); > @@ -1447,10 +1453,26 @@ static void xpad_disconnect(struct usb_interface *intf) > usb_set_intfdata(intf, NULL); > } > > +static int xpad_suspend(struct usb_interface *intf, pm_message_t message) > +{ > + struct usb_xpad *xpad = usb_get_intfdata(intf); > + > + xpad_stop_communication(xpad); > + return 0; > +} > + > +static int xpad_resume(struct usb_interface *intf) > +{ > + usb_queue_reset_device(intf); Why do we have to force reset (and tear down the device)? I am sure we can resume it properly. Thanks. > + return 0; > +} > + > static struct usb_driver xpad_driver = { > .name = "xpad", > .probe = xpad_probe, > .disconnect = xpad_disconnect, > + .suspend = xpad_suspend, > + .resume = xpad_resume, > .id_table = xpad_table, > }; > > -- > 1.9.1 > -- Dmitry -- To unsubscribe from this list: send the line "unsubscribe linux-input" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
