Re: [PATCH] Input: xpad - fix rumble on Xbox One controllers with 2015 firmware

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Hi Cameron,

On Tue, May 31, 2016 at 05:19:51PM -0500, Cameron Gutman wrote:
> Xbox One controllers that shipped with or were upgraded to the 2015
> firmware discard the current rumble packets we send. This patch changes
> the Xbox One rumble packet to a form that the newer firmware will accept.

But what do we do with the older devices?

Thanks.

> 
> It is based on changes made to support newer Xbox One controllers in
> the SteamOS brewmaster-4.1 kernel branch.
> 
> Signed-off-by: Cameron Gutman <aicommander@xxxxxxxxx>
> ---
>  drivers/input/joystick/xpad.c | 16 ++++++++--------
>  1 file changed, 8 insertions(+), 8 deletions(-)
> 
> diff --git a/drivers/input/joystick/xpad.c b/drivers/input/joystick/xpad.c
> index 804dbcc..923c572 100644
> --- a/drivers/input/joystick/xpad.c
> +++ b/drivers/input/joystick/xpad.c
> @@ -1031,17 +1031,17 @@ static int xpad_play_effect(struct input_dev *dev, void *data, struct ff_effect
>  
>  	case XTYPE_XBOXONE:
>  		packet->data[0] = 0x09; /* activate rumble */
> -		packet->data[1] = 0x08;
> +		packet->data[1] = 0x00;
>  		packet->data[2] = xpad->odata_serial++;
> -		packet->data[3] = 0x08; /* continuous effect */
> -		packet->data[4] = 0x00; /* simple rumble mode */
> -		packet->data[5] = 0x03; /* L and R actuator only */
> -		packet->data[6] = 0x00; /* TODO: LT actuator */
> -		packet->data[7] = 0x00; /* TODO: RT actuator */
> +		packet->data[3] = 0x09;
> +		packet->data[4] = 0x00;
> +		packet->data[5] = 0x0F;
> +		packet->data[6] = 0x00;
> +		packet->data[7] = 0x00;
>  		packet->data[8] = strong / 512;	/* left actuator */
>  		packet->data[9] = weak / 512;	/* right actuator */
> -		packet->data[10] = 0x80;	/* length of pulse */
> -		packet->data[11] = 0x00;	/* stop period of pulse */
> +		packet->data[10] = 0xFF;
> +		packet->data[11] = 0x00;
>  		packet->data[12] = 0x00;
>  		packet->len = 13;
>  		packet->pending = true;
> -- 
> 2.7.4

-- 
Dmitry
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