Re: [PATCH] hid-lg: Fixes immediate disconnection of Logitech Rumblepad 2

[Benjamin Tissoires <benjamin.tissoires@redhat.com>]

On Jan 24 2017 or thereabouts, Ardinartsev Nikita wrote:
> 
> 
> 24.01.2017 11:07, Benjamin Tissoires пишет:
> > Hi,
> > 
> > On Jan 20 2017 or thereabouts, Ardinartsev Nikita wrote:
> > > hid-lg: Fixes immediate disconnection of Logitech Rumblepad 2
> > > 
> > > Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=117091
> > 
> > Having a bug link is fine, but please also write a short description of
> > what you are trying to solve.
> > 
> > > Signed-off-by: Ardinartsev Nikita <ardinar23@gmail.com>
> > > ---
> > >  drivers/hid/hid-lg.c | 2 +-
> > >  1 file changed, 1 insertion(+), 1 deletion(-)
> > > 
> > > diff --git a/drivers/hid/hid-lg.c b/drivers/hid/hid-lg.c
> > > index c5c5fbe..f1afb6b 100644
> > > --- a/drivers/hid/hid-lg.c
> > > +++ b/drivers/hid/hid-lg.c
> > > @@ -872,7 +872,7 @@ static const struct hid_device_id lg_devices[] = {
> > >  	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH,
> > > USB_DEVICE_ID_LOGITECH_WINGMAN_FFG),
> > >  		.driver_data = LG_NOGET | LG_FF4 },
> > >  	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH,
> > > USB_DEVICE_ID_LOGITECH_RUMBLEPAD2),
> > > -		.driver_data = LG_FF2 },
> > > +		.driver_data = LG_FF2 | LG_NOGET },
> > 
> > This looks OK, but I'd like to get the confirmation first that the
> > rumble effects are still working.
> > 
> > Cheers,
> > Benjamin
> > 
> > >  	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH,
> > > USB_DEVICE_ID_LOGITECH_FLIGHT_SYSTEM_G940),
> > >  		.driver_data = LG_FF3 },
> > >  	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_SPACENAVIGATOR),
> > > --
> > > 2.7.4
> 
> I just tested vibration with `fftest`:
> fftest /dev/input/event15
> Force feedback test program.
> HOLD FIRMLY YOUR WHEEL OR JOYSTICK TO PREVENT DAMAGES
> 
> Device /dev/input/event15 opened
> Features:
>   * Absolute axes: X, Y, Z, RZ, Hat 0 X, Hat 0 Y,
>     [27 00 03 00 00 00 00 00 ]
>   * Relative axes:
>     [00 00 ]
>   * Force feedback effects types: Periodic, Rumble, Gain,
>     Force feedback periodic effects: Square, Triangle, Sine,
>     [00 00 00 00 00 00 00 00 00 00 03 07 01 00 00 00 ]
>   * Number of simultaneous effects: 16
> 
> Setting master gain to 75% ... OK
> Uploading effect #0 (Periodic sinusoidal) ... OK (id 0)
> Uploading effect #1 (Constant) ... Error: Invalid argument
> Uploading effect #2 (Spring) ... Error: Invalid argument
> Uploading effect #3 (Damper) ... Error: Invalid argument
> Uploading effect #4 (Strong rumble, with heavy motor) ... OK (id 1)
> Uploading effect #5 (Weak rumble, with light motor) ... OK (id 2)
> 
> Effects 0,4,5 are working in the same way as with xpad driver, gamepad is
> vibrating. `fftest` is working equivalently for D-mode (after patch) and
> X-mode (which always worked). In X-mode `fftest` can't upload effects 1,2,3
> either.

Cool. Thanks for testing. Could you please resubmit a v2 of the patch
with an extended commit message which includes also the fact that you
tested the gamepad with fftest and no regressions where observed?

Cheers,
Benjamin