[PATCH] [v2] Input: Add "Share" button to Microsoft Xbox One controller.

[PATCH] [v2] Input: Add "Share" button to Microsoft Xbox One controller.

[Chris Ye]

Add "Share" button input capability and input event mapping for
Microsoft Xbox One controller.
Fixed Microsoft Xbox One controller share button not working under USB
connection.

Signed-off-by: Chris Ye <lzye@google.com>
---
 drivers/input/joystick/xpad.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/drivers/input/joystick/xpad.c b/drivers/input/joystick/xpad.c
index 9f0d07dcbf06..0c3374091aff 100644
--- a/drivers/input/joystick/xpad.c
+++ b/drivers/input/joystick/xpad.c
@@ -79,6 +79,7 @@
 #define MAP_DPAD_TO_BUTTONS		(1 << 0)
 #define MAP_TRIGGERS_TO_BUTTONS		(1 << 1)
 #define MAP_STICKS_TO_NULL		(1 << 2)
+#define MAP_SHARE_BUTTON		(1 << 3)
 #define DANCEPAD_MAP_CONFIG	(MAP_DPAD_TO_BUTTONS |			\
 				MAP_TRIGGERS_TO_BUTTONS | MAP_STICKS_TO_NULL)
 
@@ -130,6 +131,7 @@ static const struct xpad_device {
 	{ 0x045e, 0x02e3, "Microsoft X-Box One Elite pad", 0, XTYPE_XBOXONE },
 	{ 0x045e, 0x02ea, "Microsoft X-Box One S pad", 0, XTYPE_XBOXONE },
 	{ 0x045e, 0x0719, "Xbox 360 Wireless Receiver", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX360W },
+	{ 0x045e, 0x0b12, "Microsoft X-Box One X pad", MAP_SHARE_BUTTON, XTYPE_XBOXONE },
 	{ 0x046d, 0xc21d, "Logitech Gamepad F310", 0, XTYPE_XBOX360 },
 	{ 0x046d, 0xc21e, "Logitech Gamepad F510", 0, XTYPE_XBOX360 },
 	{ 0x046d, 0xc21f, "Logitech Gamepad F710", 0, XTYPE_XBOX360 },
@@ -862,6 +864,8 @@ static void xpadone_process_packet(struct usb_xpad *xpad, u16 cmd, unsigned char
 	/* menu/view buttons */
 	input_report_key(dev, BTN_START,  data[4] & 0x04);
 	input_report_key(dev, BTN_SELECT, data[4] & 0x08);
+	if (xpad->mapping & MAP_SHARE_BUTTON)
+		input_report_key(dev, KEY_RECORD, data[22] & 0x01);
 
 	/* buttons A,B,X,Y */
 	input_report_key(dev, BTN_A,	data[4] & 0x10);
@@ -1669,9 +1673,12 @@ static int xpad_init_input(struct usb_xpad *xpad)
 
 	/* set up model-specific ones */
 	if (xpad->xtype == XTYPE_XBOX360 || xpad->xtype == XTYPE_XBOX360W ||
-	    xpad->xtype == XTYPE_XBOXONE) {
+		xpad->xtype == XTYPE_XBOXONE) {
 		for (i = 0; xpad360_btn[i] >= 0; i++)
 			input_set_capability(input_dev, EV_KEY, xpad360_btn[i]);
+		if (xpad->mapping & MAP_SHARE_BUTTON) {
+			input_set_capability(input_dev, EV_KEY, KEY_RECORD);
+		}
 	} else {
 		for (i = 0; xpad_btn[i] >= 0; i++)
 			input_set_capability(input_dev, EV_KEY, xpad_btn[i]);
-- 
2.30.0.617.g56c4b15f3c-goog

Re: [PATCH] [v2] Input: Add "Share" button to Microsoft Xbox One controller.

[Cameron Gutman]

On 2/24/21 11:32 PM, Chris Ye wrote:
> Add "Share" button input capability and input event mapping for
> Microsoft Xbox One controller.
> Fixed Microsoft Xbox One controller share button not working under USB
> connection.
> 
> Signed-off-by: Chris Ye <lzye@google.com>
> ---
>  drivers/input/joystick/xpad.c | 9 ++++++++-
>  1 file changed, 8 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/input/joystick/xpad.c b/drivers/input/joystick/xpad.c
> index 9f0d07dcbf06..0c3374091aff 100644
> --- a/drivers/input/joystick/xpad.c
> +++ b/drivers/input/joystick/xpad.c
> @@ -79,6 +79,7 @@
>  #define MAP_DPAD_TO_BUTTONS		(1 << 0)
>  #define MAP_TRIGGERS_TO_BUTTONS		(1 << 1)
>  #define MAP_STICKS_TO_NULL		(1 << 2)
> +#define MAP_SHARE_BUTTON		(1 << 3)
>  #define DANCEPAD_MAP_CONFIG	(MAP_DPAD_TO_BUTTONS |			\
>  				MAP_TRIGGERS_TO_BUTTONS | MAP_STICKS_TO_NULL)
>  
> @@ -130,6 +131,7 @@ static const struct xpad_device {
>  	{ 0x045e, 0x02e3, "Microsoft X-Box One Elite pad", 0, XTYPE_XBOXONE },
>  	{ 0x045e, 0x02ea, "Microsoft X-Box One S pad", 0, XTYPE_XBOXONE },
>  	{ 0x045e, 0x0719, "Xbox 360 Wireless Receiver", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX360W },
> +	{ 0x045e, 0x0b12, "Microsoft X-Box One X pad", MAP_SHARE_BUTTON, XTYPE_XBOXONE },

Let's use 'Xbox' for new entries instead of 'X-Box'. There was an effort to
standardize on 'Xbox' (which is what Microsoft uses), but changing device
names can impact userspace which may use these names in mapping heuristics
(SDL does this). We can at least not make the problem worse though.

>  	{ 0x046d, 0xc21d, "Logitech Gamepad F310", 0, XTYPE_XBOX360 },
>  	{ 0x046d, 0xc21e, "Logitech Gamepad F510", 0, XTYPE_XBOX360 },
>  	{ 0x046d, 0xc21f, "Logitech Gamepad F710", 0, XTYPE_XBOX360 },
> @@ -862,6 +864,8 @@ static void xpadone_process_packet(struct usb_xpad *xpad, u16 cmd, unsigned char
>  	/* menu/view buttons */
>  	input_report_key(dev, BTN_START,  data[4] & 0x04);
>  	input_report_key(dev, BTN_SELECT, data[4] & 0x08);
> +	if (xpad->mapping & MAP_SHARE_BUTTON)
> +		input_report_key(dev, KEY_RECORD, data[22] & 0x01);
>  

I was worried adding a button to an existing supported gamepad like this
might cause a breaking change to SDL's gamepad mapping for this gamepad,
since SDL assigns each present button an index rather than using the keycodes
directly (adding a new one could change the old indices). Fortunately, SDL
always processes buttons in the BTN_GAMEPAD range first, so this new button
ends up at the end of the list anyway.


>  	/* buttons A,B,X,Y */
>  	input_report_key(dev, BTN_A,	data[4] & 0x10);
> @@ -1669,9 +1673,12 @@ static int xpad_init_input(struct usb_xpad *xpad)
>  
>  	/* set up model-specific ones */
>  	if (xpad->xtype == XTYPE_XBOX360 || xpad->xtype == XTYPE_XBOX360W ||
> -	    xpad->xtype == XTYPE_XBOXONE) {
> +		xpad->xtype == XTYPE_XBOXONE) {
>  		for (i = 0; xpad360_btn[i] >= 0; i++)
>  			input_set_capability(input_dev, EV_KEY, xpad360_btn[i]);
> +		if (xpad->mapping & MAP_SHARE_BUTTON) {
> +			input_set_capability(input_dev, EV_KEY, KEY_RECORD);
> +		}

Style nit: Drop the uneeded {} here

>  	} else {
>  		for (i = 0; xpad_btn[i] >= 0; i++)
>  			input_set_capability(input_dev, EV_KEY, xpad_btn[i]);
>
LGTM, other than the minor changes suggested above.


Regards,
Cameron

Re: [PATCH] [v2] Input: Add "Share" button to Microsoft Xbox One controller.

[Chris Ye]

Hi Cameron,
   I was first thinking of adding a new XTYPE but then realized it is
still XBox One but just a model with extra button, so adding
MAP_SHARE_BUTTON would avoid adding a new XTYPE there.
Addressed the name to be "Microsoft Xbox One X pad" and removed the
{}, please review again, thanks!
Chris


On Sat, Feb 27, 2021 at 6:01 PM Cameron Gutman <aicommander@gmail.com> wrote:
>
> On 2/24/21 11:32 PM, Chris Ye wrote:
> > Add "Share" button input capability and input event mapping for
> > Microsoft Xbox One controller.
> > Fixed Microsoft Xbox One controller share button not working under USB
> > connection.
> >
> > Signed-off-by: Chris Ye <lzye@google.com>
> > ---
> >  drivers/input/joystick/xpad.c | 9 ++++++++-
> >  1 file changed, 8 insertions(+), 1 deletion(-)
> >
> > diff --git a/drivers/input/joystick/xpad.c b/drivers/input/joystick/xpad.c
> > index 9f0d07dcbf06..0c3374091aff 100644
> > --- a/drivers/input/joystick/xpad.c
> > +++ b/drivers/input/joystick/xpad.c
> > @@ -79,6 +79,7 @@
> >  #define MAP_DPAD_TO_BUTTONS          (1 << 0)
> >  #define MAP_TRIGGERS_TO_BUTTONS              (1 << 1)
> >  #define MAP_STICKS_TO_NULL           (1 << 2)
> > +#define MAP_SHARE_BUTTON             (1 << 3)
> >  #define DANCEPAD_MAP_CONFIG  (MAP_DPAD_TO_BUTTONS |                  \
> >                               MAP_TRIGGERS_TO_BUTTONS | MAP_STICKS_TO_NULL)
> >
> > @@ -130,6 +131,7 @@ static const struct xpad_device {
> >       { 0x045e, 0x02e3, "Microsoft X-Box One Elite pad", 0, XTYPE_XBOXONE },
> >       { 0x045e, 0x02ea, "Microsoft X-Box One S pad", 0, XTYPE_XBOXONE },
> >       { 0x045e, 0x0719, "Xbox 360 Wireless Receiver", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX360W },
> > +     { 0x045e, 0x0b12, "Microsoft X-Box One X pad", MAP_SHARE_BUTTON, XTYPE_XBOXONE },
>
> Let's use 'Xbox' for new entries instead of 'X-Box'. There was an effort to
> standardize on 'Xbox' (which is what Microsoft uses), but changing device
> names can impact userspace which may use these names in mapping heuristics
> (SDL does this). We can at least not make the problem worse though.
>
> >       { 0x046d, 0xc21d, "Logitech Gamepad F310", 0, XTYPE_XBOX360 },
> >       { 0x046d, 0xc21e, "Logitech Gamepad F510", 0, XTYPE_XBOX360 },
> >       { 0x046d, 0xc21f, "Logitech Gamepad F710", 0, XTYPE_XBOX360 },
> > @@ -862,6 +864,8 @@ static void xpadone_process_packet(struct usb_xpad *xpad, u16 cmd, unsigned char
> >       /* menu/view buttons */
> >       input_report_key(dev, BTN_START,  data[4] & 0x04);
> >       input_report_key(dev, BTN_SELECT, data[4] & 0x08);
> > +     if (xpad->mapping & MAP_SHARE_BUTTON)
> > +             input_report_key(dev, KEY_RECORD, data[22] & 0x01);
> >
>
> I was worried adding a button to an existing supported gamepad like this
> might cause a breaking change to SDL's gamepad mapping for this gamepad,
> since SDL assigns each present button an index rather than using the keycodes
> directly (adding a new one could change the old indices). Fortunately, SDL
> always processes buttons in the BTN_GAMEPAD range first, so this new button
> ends up at the end of the list anyway.
>
>
> >       /* buttons A,B,X,Y */
> >       input_report_key(dev, BTN_A,    data[4] & 0x10);
> > @@ -1669,9 +1673,12 @@ static int xpad_init_input(struct usb_xpad *xpad)
> >
> >       /* set up model-specific ones */
> >       if (xpad->xtype == XTYPE_XBOX360 || xpad->xtype == XTYPE_XBOX360W ||
> > -         xpad->xtype == XTYPE_XBOXONE) {
> > +             xpad->xtype == XTYPE_XBOXONE) {
> >               for (i = 0; xpad360_btn[i] >= 0; i++)
> >                       input_set_capability(input_dev, EV_KEY, xpad360_btn[i]);
> > +             if (xpad->mapping & MAP_SHARE_BUTTON) {
> > +                     input_set_capability(input_dev, EV_KEY, KEY_RECORD);
> > +             }
>
> Style nit: Drop the uneeded {} here
>
> >       } else {
> >               for (i = 0; xpad_btn[i] >= 0; i++)
> >                       input_set_capability(input_dev, EV_KEY, xpad_btn[i]);
> >
> LGTM, other than the minor changes suggested above.
>
>
> Regards,
> Cameron

Re: [PATCH] [v2] Input: Add "Share" button to Microsoft Xbox One controller.

[Bastien Nocera]

On Thu, 2021-02-25 at 05:32 +0000, Chris Ye wrote:
> Add "Share" button input capability and input event mapping for
> Microsoft Xbox One controller.
> Fixed Microsoft Xbox One controller share button not working under USB
> connection.
> 
> Signed-off-by: Chris Ye <lzye@google.com>
> ---
>  drivers/input/joystick/xpad.c | 9 ++++++++-
>  1 file changed, 8 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/input/joystick/xpad.c
> b/drivers/input/joystick/xpad.c
> index 9f0d07dcbf06..0c3374091aff 100644
> --- a/drivers/input/joystick/xpad.c
> +++ b/drivers/input/joystick/xpad.c
> @@ -79,6 +79,7 @@
>  #define MAP_DPAD_TO_BUTTONS            (1 << 0)
>  #define MAP_TRIGGERS_TO_BUTTONS                (1 << 1)
>  #define MAP_STICKS_TO_NULL             (1 << 2)
> +#define MAP_SHARE_BUTTON               (1 << 3)
>  #define DANCEPAD_MAP_CONFIG    (MAP_DPAD_TO_BUTTONS
> |                  \
>                                 MAP_TRIGGERS_TO_BUTTONS |
> MAP_STICKS_TO_NULL)
>  
> @@ -130,6 +131,7 @@ static const struct xpad_device {
>         { 0x045e, 0x02e3, "Microsoft X-Box One Elite pad", 0,
> XTYPE_XBOXONE },
>         { 0x045e, 0x02ea, "Microsoft X-Box One S pad", 0, XTYPE_XBOXONE
> },
>         { 0x045e, 0x0719, "Xbox 360 Wireless Receiver",
> MAP_DPAD_TO_BUTTONS, XTYPE_XBOX360W },
> +       { 0x045e, 0x0b12, "Microsoft X-Box One X pad",
> MAP_SHARE_BUTTON, XTYPE_XBOXONE },
>         { 0x046d, 0xc21d, "Logitech Gamepad F310", 0, XTYPE_XBOX360 },
>         { 0x046d, 0xc21e, "Logitech Gamepad F510", 0, XTYPE_XBOX360 },
>         { 0x046d, 0xc21f, "Logitech Gamepad F710", 0, XTYPE_XBOX360 },
> @@ -862,6 +864,8 @@ static void xpadone_process_packet(struct usb_xpad
> *xpad, u16 cmd, unsigned char
>         /* menu/view buttons */
>         input_report_key(dev, BTN_START,  data[4] & 0x04);
>         input_report_key(dev, BTN_SELECT, data[4] & 0x08);
> +       if (xpad->mapping & MAP_SHARE_BUTTON)
> +               input_report_key(dev, KEY_RECORD, data[22] & 0x01);
>  
>         /* buttons A,B,X,Y */
>         input_report_key(dev, BTN_A,    data[4] & 0x10);
> @@ -1669,9 +1673,12 @@ static int xpad_init_input(struct usb_xpad
> *xpad)
>  
>         /* set up model-specific ones */
>         if (xpad->xtype == XTYPE_XBOX360 || xpad->xtype ==
> XTYPE_XBOX360W ||
> -           xpad->xtype == XTYPE_XBOXONE) {
> +               xpad->xtype == XTYPE_XBOXONE) {
>                 for (i = 0; xpad360_btn[i] >= 0; i++)
>                         input_set_capability(input_dev, EV_KEY,
> xpad360_btn[i]);
> +               if (xpad->mapping & MAP_SHARE_BUTTON) {
> +                       input_set_capability(input_dev, EV_KEY,
> KEY_RECORD);

Is there not a better keycode to use than "Record"? Should a "share"
keycode be added?

I couldn't find a share button in the most recent USB HID Usage Tables:
https://www.usb.org/document-library/hid-usage-tables-121

> +               }
>         } else {
>                 for (i = 0; xpad_btn[i] >= 0; i++)
>                         input_set_capability(input_dev, EV_KEY,
> xpad_btn[i]);

Re: [PATCH] [v2] Input: Add "Share" button to Microsoft Xbox One controller.

[Chris Ye]

Hi Bastien,
    The "Share button" is a name Microsoft calls it, it actually has
HID descriptor defined in the bluetooth interface, which the HID usage
is:
consumer 0xB2:
0x05, 0x0C,        //   Usage Page (Consumer)
0x0A, 0xB2, 0x00,  //   Usage (Record)
Microsoft wants the same key code to be generated consistently for USB
and bluetooth.
Thanks!
Chris


On Tue, Mar 2, 2021 at 1:50 AM Bastien Nocera <hadess@hadess.net> wrote:
>
> On Thu, 2021-02-25 at 05:32 +0000, Chris Ye wrote:
> > Add "Share" button input capability and input event mapping for
> > Microsoft Xbox One controller.
> > Fixed Microsoft Xbox One controller share button not working under USB
> > connection.
> >
> > Signed-off-by: Chris Ye <lzye@google.com>
> > ---
> >  drivers/input/joystick/xpad.c | 9 ++++++++-
> >  1 file changed, 8 insertions(+), 1 deletion(-)
> >
> > diff --git a/drivers/input/joystick/xpad.c
> > b/drivers/input/joystick/xpad.c
> > index 9f0d07dcbf06..0c3374091aff 100644
> > --- a/drivers/input/joystick/xpad.c
> > +++ b/drivers/input/joystick/xpad.c
> > @@ -79,6 +79,7 @@
> >  #define MAP_DPAD_TO_BUTTONS            (1 << 0)
> >  #define MAP_TRIGGERS_TO_BUTTONS                (1 << 1)
> >  #define MAP_STICKS_TO_NULL             (1 << 2)
> > +#define MAP_SHARE_BUTTON               (1 << 3)
> >  #define DANCEPAD_MAP_CONFIG    (MAP_DPAD_TO_BUTTONS
> > |                  \
> >                                 MAP_TRIGGERS_TO_BUTTONS |
> > MAP_STICKS_TO_NULL)
> >
> > @@ -130,6 +131,7 @@ static const struct xpad_device {
> >         { 0x045e, 0x02e3, "Microsoft X-Box One Elite pad", 0,
> > XTYPE_XBOXONE },
> >         { 0x045e, 0x02ea, "Microsoft X-Box One S pad", 0, XTYPE_XBOXONE
> > },
> >         { 0x045e, 0x0719, "Xbox 360 Wireless Receiver",
> > MAP_DPAD_TO_BUTTONS, XTYPE_XBOX360W },
> > +       { 0x045e, 0x0b12, "Microsoft X-Box One X pad",
> > MAP_SHARE_BUTTON, XTYPE_XBOXONE },
> >         { 0x046d, 0xc21d, "Logitech Gamepad F310", 0, XTYPE_XBOX360 },
> >         { 0x046d, 0xc21e, "Logitech Gamepad F510", 0, XTYPE_XBOX360 },
> >         { 0x046d, 0xc21f, "Logitech Gamepad F710", 0, XTYPE_XBOX360 },
> > @@ -862,6 +864,8 @@ static void xpadone_process_packet(struct usb_xpad
> > *xpad, u16 cmd, unsigned char
> >         /* menu/view buttons */
> >         input_report_key(dev, BTN_START,  data[4] & 0x04);
> >         input_report_key(dev, BTN_SELECT, data[4] & 0x08);
> > +       if (xpad->mapping & MAP_SHARE_BUTTON)
> > +               input_report_key(dev, KEY_RECORD, data[22] & 0x01);
> >
> >         /* buttons A,B,X,Y */
> >         input_report_key(dev, BTN_A,    data[4] & 0x10);
> > @@ -1669,9 +1673,12 @@ static int xpad_init_input(struct usb_xpad
> > *xpad)
> >
> >         /* set up model-specific ones */
> >         if (xpad->xtype == XTYPE_XBOX360 || xpad->xtype ==
> > XTYPE_XBOX360W ||
> > -           xpad->xtype == XTYPE_XBOXONE) {
> > +               xpad->xtype == XTYPE_XBOXONE) {
> >                 for (i = 0; xpad360_btn[i] >= 0; i++)
> >                         input_set_capability(input_dev, EV_KEY,
> > xpad360_btn[i]);
> > +               if (xpad->mapping & MAP_SHARE_BUTTON) {
> > +                       input_set_capability(input_dev, EV_KEY,
> > KEY_RECORD);
>
> Is there not a better keycode to use than "Record"? Should a "share"
> keycode be added?
>
> I couldn't find a share button in the most recent USB HID Usage Tables:
> https://www.usb.org/document-library/hid-usage-tables-121
>
> > +               }
> >         } else {
> >                 for (i = 0; xpad_btn[i] >= 0; i++)
> >                         input_set_capability(input_dev, EV_KEY,
> > xpad_btn[i]);
>
>

Re: [PATCH] [v2] Input: Add "Share" button to Microsoft Xbox One controller.

[Chris Ye]

Hi Bastien,  just want to follow up again on this.  I've checked again
with the Xbox team that the "Share button" is given for the product,
the HID usage profile and mapping to RECORD is what Xbox team expects
and they want the same mapping for USB.

Thanks!
Chris


On Tue, Mar 2, 2021 at 3:57 PM Chris Ye <lzye@google.com> wrote:
>
> Hi Bastien,
>     The "Share button" is a name Microsoft calls it, it actually has
> HID descriptor defined in the bluetooth interface, which the HID usage
> is:
> consumer 0xB2:
> 0x05, 0x0C,        //   Usage Page (Consumer)
> 0x0A, 0xB2, 0x00,  //   Usage (Record)
> Microsoft wants the same key code to be generated consistently for USB
> and bluetooth.
> Thanks!
> Chris
>
>
> On Tue, Mar 2, 2021 at 1:50 AM Bastien Nocera <hadess@hadess.net> wrote:
> >
> > On Thu, 2021-02-25 at 05:32 +0000, Chris Ye wrote:
> > > Add "Share" button input capability and input event mapping for
> > > Microsoft Xbox One controller.
> > > Fixed Microsoft Xbox One controller share button not working under USB
> > > connection.
> > >
> > > Signed-off-by: Chris Ye <lzye@google.com>
> > > ---
> > >  drivers/input/joystick/xpad.c | 9 ++++++++-
> > >  1 file changed, 8 insertions(+), 1 deletion(-)
> > >
> > > diff --git a/drivers/input/joystick/xpad.c
> > > b/drivers/input/joystick/xpad.c
> > > index 9f0d07dcbf06..0c3374091aff 100644
> > > --- a/drivers/input/joystick/xpad.c
> > > +++ b/drivers/input/joystick/xpad.c
> > > @@ -79,6 +79,7 @@
> > >  #define MAP_DPAD_TO_BUTTONS            (1 << 0)
> > >  #define MAP_TRIGGERS_TO_BUTTONS                (1 << 1)
> > >  #define MAP_STICKS_TO_NULL             (1 << 2)
> > > +#define MAP_SHARE_BUTTON               (1 << 3)
> > >  #define DANCEPAD_MAP_CONFIG    (MAP_DPAD_TO_BUTTONS
> > > |                  \
> > >                                 MAP_TRIGGERS_TO_BUTTONS |
> > > MAP_STICKS_TO_NULL)
> > >
> > > @@ -130,6 +131,7 @@ static const struct xpad_device {
> > >         { 0x045e, 0x02e3, "Microsoft X-Box One Elite pad", 0,
> > > XTYPE_XBOXONE },
> > >         { 0x045e, 0x02ea, "Microsoft X-Box One S pad", 0, XTYPE_XBOXONE
> > > },
> > >         { 0x045e, 0x0719, "Xbox 360 Wireless Receiver",
> > > MAP_DPAD_TO_BUTTONS, XTYPE_XBOX360W },
> > > +       { 0x045e, 0x0b12, "Microsoft X-Box One X pad",
> > > MAP_SHARE_BUTTON, XTYPE_XBOXONE },
> > >         { 0x046d, 0xc21d, "Logitech Gamepad F310", 0, XTYPE_XBOX360 },
> > >         { 0x046d, 0xc21e, "Logitech Gamepad F510", 0, XTYPE_XBOX360 },
> > >         { 0x046d, 0xc21f, "Logitech Gamepad F710", 0, XTYPE_XBOX360 },
> > > @@ -862,6 +864,8 @@ static void xpadone_process_packet(struct usb_xpad
> > > *xpad, u16 cmd, unsigned char
> > >         /* menu/view buttons */
> > >         input_report_key(dev, BTN_START,  data[4] & 0x04);
> > >         input_report_key(dev, BTN_SELECT, data[4] & 0x08);
> > > +       if (xpad->mapping & MAP_SHARE_BUTTON)
> > > +               input_report_key(dev, KEY_RECORD, data[22] & 0x01);
> > >
> > >         /* buttons A,B,X,Y */
> > >         input_report_key(dev, BTN_A,    data[4] & 0x10);
> > > @@ -1669,9 +1673,12 @@ static int xpad_init_input(struct usb_xpad
> > > *xpad)
> > >
> > >         /* set up model-specific ones */
> > >         if (xpad->xtype == XTYPE_XBOX360 || xpad->xtype ==
> > > XTYPE_XBOX360W ||
> > > -           xpad->xtype == XTYPE_XBOXONE) {
> > > +               xpad->xtype == XTYPE_XBOXONE) {
> > >                 for (i = 0; xpad360_btn[i] >= 0; i++)
> > >                         input_set_capability(input_dev, EV_KEY,
> > > xpad360_btn[i]);
> > > +               if (xpad->mapping & MAP_SHARE_BUTTON) {
> > > +                       input_set_capability(input_dev, EV_KEY,
> > > KEY_RECORD);
> >
> > Is there not a better keycode to use than "Record"? Should a "share"
> > keycode be added?
> >
> > I couldn't find a share button in the most recent USB HID Usage Tables:
> > https://www.usb.org/document-library/hid-usage-tables-121
> >
> > > +               }
> > >         } else {
> > >                 for (i = 0; xpad_btn[i] >= 0; i++)
> > >                         input_set_capability(input_dev, EV_KEY,
> > > xpad_btn[i]);
> >
> >

Re: [PATCH] [v2] Input: Add "Share" button to Microsoft Xbox One controller.

[Roderick Colenbrander]

(resend in plain text)
+benjamin in a more explicit way

Hi Chris,

I see the need for the Record button. I wonder what makes sense from
the Linux kernel perspective. For DualShock 4 and DualSense there is a
Share button too (it introduced it). For DualShock 4 that was mapped
to 'Select' I think per Linux gamepad spec. For DualSense in 5.12 we
did the same... Though if there is a true 'Record' button we want to
use moving forward. Maybe we still want to change the button
definition for DualSensein 5.12 while we can...

It would be good to get some consensus on these buttons.

Thanks,
Roderick


On Thu, Mar 4, 2021 at 6:25 PM Chris Ye <lzye@google.com> wrote:
>
> Hi Bastien,  just want to follow up again on this.  I've checked again
> with the Xbox team that the "Share button" is given for the product,
> the HID usage profile and mapping to RECORD is what Xbox team expects
> and they want the same mapping for USB.
>
> Thanks!
> Chris
>
>
> On Tue, Mar 2, 2021 at 3:57 PM Chris Ye <lzye@google.com> wrote:
> >
> > Hi Bastien,
> >     The "Share button" is a name Microsoft calls it, it actually has
> > HID descriptor defined in the bluetooth interface, which the HID usage
> > is:
> > consumer 0xB2:
> > 0x05, 0x0C,        //   Usage Page (Consumer)
> > 0x0A, 0xB2, 0x00,  //   Usage (Record)
> > Microsoft wants the same key code to be generated consistently for USB
> > and bluetooth.
> > Thanks!
> > Chris
> >
> >
> > On Tue, Mar 2, 2021 at 1:50 AM Bastien Nocera <hadess@hadess.net> wrote:
> > >
> > > On Thu, 2021-02-25 at 05:32 +0000, Chris Ye wrote:
> > > > Add "Share" button input capability and input event mapping for
> > > > Microsoft Xbox One controller.
> > > > Fixed Microsoft Xbox One controller share button not working under USB
> > > > connection.
> > > >
> > > > Signed-off-by: Chris Ye <lzye@google.com>
> > > > ---
> > > >  drivers/input/joystick/xpad.c | 9 ++++++++-
> > > >  1 file changed, 8 insertions(+), 1 deletion(-)
> > > >
> > > > diff --git a/drivers/input/joystick/xpad.c
> > > > b/drivers/input/joystick/xpad.c
> > > > index 9f0d07dcbf06..0c3374091aff 100644
> > > > --- a/drivers/input/joystick/xpad.c
> > > > +++ b/drivers/input/joystick/xpad.c
> > > > @@ -79,6 +79,7 @@
> > > >  #define MAP_DPAD_TO_BUTTONS            (1 << 0)
> > > >  #define MAP_TRIGGERS_TO_BUTTONS                (1 << 1)
> > > >  #define MAP_STICKS_TO_NULL             (1 << 2)
> > > > +#define MAP_SHARE_BUTTON               (1 << 3)
> > > >  #define DANCEPAD_MAP_CONFIG    (MAP_DPAD_TO_BUTTONS
> > > > |                  \
> > > >                                 MAP_TRIGGERS_TO_BUTTONS |
> > > > MAP_STICKS_TO_NULL)
> > > >
> > > > @@ -130,6 +131,7 @@ static const struct xpad_device {
> > > >         { 0x045e, 0x02e3, "Microsoft X-Box One Elite pad", 0,
> > > > XTYPE_XBOXONE },
> > > >         { 0x045e, 0x02ea, "Microsoft X-Box One S pad", 0, XTYPE_XBOXONE
> > > > },
> > > >         { 0x045e, 0x0719, "Xbox 360 Wireless Receiver",
> > > > MAP_DPAD_TO_BUTTONS, XTYPE_XBOX360W },
> > > > +       { 0x045e, 0x0b12, "Microsoft X-Box One X pad",
> > > > MAP_SHARE_BUTTON, XTYPE_XBOXONE },
> > > >         { 0x046d, 0xc21d, "Logitech Gamepad F310", 0, XTYPE_XBOX360 },
> > > >         { 0x046d, 0xc21e, "Logitech Gamepad F510", 0, XTYPE_XBOX360 },
> > > >         { 0x046d, 0xc21f, "Logitech Gamepad F710", 0, XTYPE_XBOX360 },
> > > > @@ -862,6 +864,8 @@ static void xpadone_process_packet(struct usb_xpad
> > > > *xpad, u16 cmd, unsigned char
> > > >         /* menu/view buttons */
> > > >         input_report_key(dev, BTN_START,  data[4] & 0x04);
> > > >         input_report_key(dev, BTN_SELECT, data[4] & 0x08);
> > > > +       if (xpad->mapping & MAP_SHARE_BUTTON)
> > > > +               input_report_key(dev, KEY_RECORD, data[22] & 0x01);
> > > >
> > > >         /* buttons A,B,X,Y */
> > > >         input_report_key(dev, BTN_A,    data[4] & 0x10);
> > > > @@ -1669,9 +1673,12 @@ static int xpad_init_input(struct usb_xpad
> > > > *xpad)
> > > >
> > > >         /* set up model-specific ones */
> > > >         if (xpad->xtype == XTYPE_XBOX360 || xpad->xtype ==
> > > > XTYPE_XBOX360W ||
> > > > -           xpad->xtype == XTYPE_XBOXONE) {
> > > > +               xpad->xtype == XTYPE_XBOXONE) {
> > > >                 for (i = 0; xpad360_btn[i] >= 0; i++)
> > > >                         input_set_capability(input_dev, EV_KEY,
> > > > xpad360_btn[i]);
> > > > +               if (xpad->mapping & MAP_SHARE_BUTTON) {
> > > > +                       input_set_capability(input_dev, EV_KEY,
> > > > KEY_RECORD);
> > >
> > > Is there not a better keycode to use than "Record"? Should a "share"
> > > keycode be added?
> > >
> > > I couldn't find a share button in the most recent USB HID Usage Tables:
> > > https://www.usb.org/document-library/hid-usage-tables-121
> > >
> > > > +               }
> > > >         } else {
> > > >                 for (i = 0; xpad_btn[i] >= 0; i++)
> > > >                         input_set_capability(input_dev, EV_KEY,
> > > > xpad_btn[i]);
> > >
> > >

Re: [PATCH] [v2] Input: Add "Share" button to Microsoft Xbox One controller.

[Bastien Nocera]

On Thu, 2021-03-04 at 20:42 -0800, Roderick Colenbrander wrote:
> (resend in plain text)
> +benjamin in a more explicit way
> 
> Hi Chris,
> 
> I see the need for the Record button. I wonder what makes sense from
> the Linux kernel perspective. For DualShock 4 and DualSense there is a
> Share button too (it introduced it). For DualShock 4 that was mapped
> to 'Select' I think per Linux gamepad spec. For DualSense in 5.12 we
> did the same... Though if there is a true 'Record' button we want to
> use moving forward. Maybe we still want to change the button
> definition for DualSensein 5.12 while we can...
> 
> It would be good to get some consensus on these buttons.

The XBox One Series X controller has 3 of those "middle" buttons, 2
equivalent to Start/Select on older controllers (that were already
present on older versions of the pad) and Share.
https://www.xbox.com/en-US/accessories/controllers/xbox-wireless-controller

The Options buttons on the DS4 replaces Start and Select:
https://manuals.playstation.net/document/en/ps4/basic/pn_controller.html
so Share got added, but Select taken away, which is why you had to
label it Select in the driver.

I don't really see how to fix that without retroactively re-adding
buttons to the DS4 controller ;)

> 
> Thanks,
> Roderick
> 
> 
> On Thu, Mar 4, 2021 at 6:25 PM Chris Ye <lzye@google.com> wrote:
> > 
> > Hi Bastien,  just want to follow up again on this.  I've checked
> > again
> > with the Xbox team that the "Share button" is given for the product,
> > the HID usage profile and mapping to RECORD is what Xbox team expects
> > and they want the same mapping for USB.
> > 
> > Thanks!
> > Chris
> > 
> > 
> > On Tue, Mar 2, 2021 at 3:57 PM Chris Ye <lzye@google.com> wrote:
> > > 
> > > Hi Bastien,
> > >     The "Share button" is a name Microsoft calls it, it actually
> > > has
> > > HID descriptor defined in the bluetooth interface, which the HID
> > > usage
> > > is:
> > > consumer 0xB2:
> > > 0x05, 0x0C,        //   Usage Page (Consumer)
> > > 0x0A, 0xB2, 0x00,  //   Usage (Record)
> > > Microsoft wants the same key code to be generated consistently for
> > > USB
> > > and bluetooth.
> > > Thanks!
> > > Chris
> > > 
> > > 
> > > On Tue, Mar 2, 2021 at 1:50 AM Bastien Nocera <hadess@hadess.net>
> > > wrote:
> > > > 
> > > > On Thu, 2021-02-25 at 05:32 +0000, Chris Ye wrote:
> > > > > Add "Share" button input capability and input event mapping for
> > > > > Microsoft Xbox One controller.
> > > > > Fixed Microsoft Xbox One controller share button not working
> > > > > under USB
> > > > > connection.
> > > > > 
> > > > > Signed-off-by: Chris Ye <lzye@google.com>
> > > > > ---
> > > > >  drivers/input/joystick/xpad.c | 9 ++++++++-
> > > > >  1 file changed, 8 insertions(+), 1 deletion(-)
> > > > > 
> > > > > diff --git a/drivers/input/joystick/xpad.c
> > > > > b/drivers/input/joystick/xpad.c
> > > > > index 9f0d07dcbf06..0c3374091aff 100644
> > > > > --- a/drivers/input/joystick/xpad.c
> > > > > +++ b/drivers/input/joystick/xpad.c
> > > > > @@ -79,6 +79,7 @@
> > > > >  #define MAP_DPAD_TO_BUTTONS            (1 << 0)
> > > > >  #define MAP_TRIGGERS_TO_BUTTONS                (1 << 1)
> > > > >  #define MAP_STICKS_TO_NULL             (1 << 2)
> > > > > +#define MAP_SHARE_BUTTON               (1 << 3)
> > > > >  #define DANCEPAD_MAP_CONFIG    (MAP_DPAD_TO_BUTTONS
> > > > > >                  \
> > > > >                                 MAP_TRIGGERS_TO_BUTTONS |
> > > > > MAP_STICKS_TO_NULL)
> > > > > 
> > > > > @@ -130,6 +131,7 @@ static const struct xpad_device {
> > > > >         { 0x045e, 0x02e3, "Microsoft X-Box One Elite pad", 0,
> > > > > XTYPE_XBOXONE },
> > > > >         { 0x045e, 0x02ea, "Microsoft X-Box One S pad", 0,
> > > > > XTYPE_XBOXONE
> > > > > },
> > > > >         { 0x045e, 0x0719, "Xbox 360 Wireless Receiver",
> > > > > MAP_DPAD_TO_BUTTONS, XTYPE_XBOX360W },
> > > > > +       { 0x045e, 0x0b12, "Microsoft X-Box One X pad",
> > > > > MAP_SHARE_BUTTON, XTYPE_XBOXONE },
> > > > >         { 0x046d, 0xc21d, "Logitech Gamepad F310", 0,
> > > > > XTYPE_XBOX360 },
> > > > >         { 0x046d, 0xc21e, "Logitech Gamepad F510", 0,
> > > > > XTYPE_XBOX360 },
> > > > >         { 0x046d, 0xc21f, "Logitech Gamepad F710", 0,
> > > > > XTYPE_XBOX360 },
> > > > > @@ -862,6 +864,8 @@ static void xpadone_process_packet(struct
> > > > > usb_xpad
> > > > > *xpad, u16 cmd, unsigned char
> > > > >         /* menu/view buttons */
> > > > >         input_report_key(dev, BTN_START,  data[4] & 0x04);
> > > > >         input_report_key(dev, BTN_SELECT, data[4] & 0x08);
> > > > > +       if (xpad->mapping & MAP_SHARE_BUTTON)
> > > > > +               input_report_key(dev, KEY_RECORD, data[22] &
> > > > > 0x01);
> > > > > 
> > > > >         /* buttons A,B,X,Y */
> > > > >         input_report_key(dev, BTN_A,    data[4] & 0x10);
> > > > > @@ -1669,9 +1673,12 @@ static int xpad_init_input(struct
> > > > > usb_xpad
> > > > > *xpad)
> > > > > 
> > > > >         /* set up model-specific ones */
> > > > >         if (xpad->xtype == XTYPE_XBOX360 || xpad->xtype ==
> > > > > XTYPE_XBOX360W ||
> > > > > -           xpad->xtype == XTYPE_XBOXONE) {
> > > > > +               xpad->xtype == XTYPE_XBOXONE) {
> > > > >                 for (i = 0; xpad360_btn[i] >= 0; i++)
> > > > >                         input_set_capability(input_dev, EV_KEY,
> > > > > xpad360_btn[i]);
> > > > > +               if (xpad->mapping & MAP_SHARE_BUTTON) {
> > > > > +                       input_set_capability(input_dev, EV_KEY,
> > > > > KEY_RECORD);
> > > > 
> > > > Is there not a better keycode to use than "Record"? Should a
> > > > "share"
> > > > keycode be added?
> > > > 
> > > > I couldn't find a share button in the most recent USB HID Usage
> > > > Tables:
> > > > https://www.usb.org/document-library/hid-usage-tables-121
> > > > 
> > > > > +               }
> > > > >         } else {
> > > > >                 for (i = 0; xpad_btn[i] >= 0; i++)
> > > > >                         input_set_capability(input_dev, EV_KEY,
> > > > > xpad_btn[i]);
> > > > 
> > > > 

Re: [PATCH] [v2] Input: Add "Share" button to Microsoft Xbox One controller.

[Chris Ye]

From the product information site
https://www.xbox.com/en-US/accessories/controllers/xbox-wireless-controller
this button is referred as "Share button":
"Stay on target with textured grip and a hybrid D-pad. Seamlessly
capture and share content with a dedicated Share button. Quickly pair
with, play on, and switch between devices "
Should we override the product button name and name it "Select" in
driver?   I am ok with either way but can we have a name everyone can
agree on and move forward?

Thanks!
Chris


On Tue, Mar 23, 2021 at 2:52 PM Chris Ye <lzye@google.com> wrote:
>
> The name "Share button" is a product name from Microsoft and they choose the button to be used for "record" as the device firmware maps the button to Consumer(Record) HID usage.
> Can we accept the patch to make the "Share button" to work consistently under USB mode, same as Bluetooth mode?
>
> Thanks!
> Chris
>
> On Thu, Mar 4, 2021 at 11:18 PM Bastien Nocera <hadess@hadess.net> wrote:
>>
>> On Thu, 2021-03-04 at 20:42 -0800, Roderick Colenbrander wrote:
>> > (resend in plain text)
>> > +benjamin in a more explicit way
>> >
>> > Hi Chris,
>> >
>> > I see the need for the Record button. I wonder what makes sense from
>> > the Linux kernel perspective. For DualShock 4 and DualSense there is a
>> > Share button too (it introduced it). For DualShock 4 that was mapped
>> > to 'Select' I think per Linux gamepad spec. For DualSense in 5.12 we
>> > did the same... Though if there is a true 'Record' button we want to
>> > use moving forward. Maybe we still want to change the button
>> > definition for DualSensein 5.12 while we can...
>> >
>> > It would be good to get some consensus on these buttons.
>>
>> The XBox One Series X controller has 3 of those "middle" buttons, 2
>> equivalent to Start/Select on older controllers (that were already
>> present on older versions of the pad) and Share.
>> https://www.xbox.com/en-US/accessories/controllers/xbox-wireless-controller
>>
>> The Options buttons on the DS4 replaces Start and Select:
>> https://manuals.playstation.net/document/en/ps4/basic/pn_controller.html
>> so Share got added, but Select taken away, which is why you had to
>> label it Select in the driver.
>>
>> I don't really see how to fix that without retroactively re-adding
>> buttons to the DS4 controller ;)
>>
>> >
>> > Thanks,
>> > Roderick
>> >
>> >
>> > On Thu, Mar 4, 2021 at 6:25 PM Chris Ye <lzye@google.com> wrote:
>> > >
>> > > Hi Bastien,  just want to follow up again on this.  I've checked
>> > > again
>> > > with the Xbox team that the "Share button" is given for the product,
>> > > the HID usage profile and mapping to RECORD is what Xbox team expects
>> > > and they want the same mapping for USB.
>> > >
>> > > Thanks!
>> > > Chris
>> > >
>> > >
>> > > On Tue, Mar 2, 2021 at 3:57 PM Chris Ye <lzye@google.com> wrote:
>> > > >
>> > > > Hi Bastien,
>> > > >     The "Share button" is a name Microsoft calls it, it actually
>> > > > has
>> > > > HID descriptor defined in the bluetooth interface, which the HID
>> > > > usage
>> > > > is:
>> > > > consumer 0xB2:
>> > > > 0x05, 0x0C,        //   Usage Page (Consumer)
>> > > > 0x0A, 0xB2, 0x00,  //   Usage (Record)
>> > > > Microsoft wants the same key code to be generated consistently for
>> > > > USB
>> > > > and bluetooth.
>> > > > Thanks!
>> > > > Chris
>> > > >
>> > > >
>> > > > On Tue, Mar 2, 2021 at 1:50 AM Bastien Nocera <hadess@hadess.net>
>> > > > wrote:
>> > > > >
>> > > > > On Thu, 2021-02-25 at 05:32 +0000, Chris Ye wrote:
>> > > > > > Add "Share" button input capability and input event mapping for
>> > > > > > Microsoft Xbox One controller.
>> > > > > > Fixed Microsoft Xbox One controller share button not working
>> > > > > > under USB
>> > > > > > connection.
>> > > > > >
>> > > > > > Signed-off-by: Chris Ye <lzye@google.com>
>> > > > > > ---
>> > > > > >  drivers/input/joystick/xpad.c | 9 ++++++++-
>> > > > > >  1 file changed, 8 insertions(+), 1 deletion(-)
>> > > > > >
>> > > > > > diff --git a/drivers/input/joystick/xpad.c
>> > > > > > b/drivers/input/joystick/xpad.c
>> > > > > > index 9f0d07dcbf06..0c3374091aff 100644
>> > > > > > --- a/drivers/input/joystick/xpad.c
>> > > > > > +++ b/drivers/input/joystick/xpad.c
>> > > > > > @@ -79,6 +79,7 @@
>> > > > > >  #define MAP_DPAD_TO_BUTTONS            (1 << 0)
>> > > > > >  #define MAP_TRIGGERS_TO_BUTTONS                (1 << 1)
>> > > > > >  #define MAP_STICKS_TO_NULL             (1 << 2)
>> > > > > > +#define MAP_SHARE_BUTTON               (1 << 3)
>> > > > > >  #define DANCEPAD_MAP_CONFIG    (MAP_DPAD_TO_BUTTONS
>> > > > > > >                  \
>> > > > > >                                 MAP_TRIGGERS_TO_BUTTONS |
>> > > > > > MAP_STICKS_TO_NULL)
>> > > > > >
>> > > > > > @@ -130,6 +131,7 @@ static const struct xpad_device {
>> > > > > >         { 0x045e, 0x02e3, "Microsoft X-Box One Elite pad", 0,
>> > > > > > XTYPE_XBOXONE },
>> > > > > >         { 0x045e, 0x02ea, "Microsoft X-Box One S pad", 0,
>> > > > > > XTYPE_XBOXONE
>> > > > > > },
>> > > > > >         { 0x045e, 0x0719, "Xbox 360 Wireless Receiver",
>> > > > > > MAP_DPAD_TO_BUTTONS, XTYPE_XBOX360W },
>> > > > > > +       { 0x045e, 0x0b12, "Microsoft X-Box One X pad",
>> > > > > > MAP_SHARE_BUTTON, XTYPE_XBOXONE },
>> > > > > >         { 0x046d, 0xc21d, "Logitech Gamepad F310", 0,
>> > > > > > XTYPE_XBOX360 },
>> > > > > >         { 0x046d, 0xc21e, "Logitech Gamepad F510", 0,
>> > > > > > XTYPE_XBOX360 },
>> > > > > >         { 0x046d, 0xc21f, "Logitech Gamepad F710", 0,
>> > > > > > XTYPE_XBOX360 },
>> > > > > > @@ -862,6 +864,8 @@ static void xpadone_process_packet(struct
>> > > > > > usb_xpad
>> > > > > > *xpad, u16 cmd, unsigned char
>> > > > > >         /* menu/view buttons */
>> > > > > >         input_report_key(dev, BTN_START,  data[4] & 0x04);
>> > > > > >         input_report_key(dev, BTN_SELECT, data[4] & 0x08);
>> > > > > > +       if (xpad->mapping & MAP_SHARE_BUTTON)
>> > > > > > +               input_report_key(dev, KEY_RECORD, data[22] &
>> > > > > > 0x01);
>> > > > > >
>> > > > > >         /* buttons A,B,X,Y */
>> > > > > >         input_report_key(dev, BTN_A,    data[4] & 0x10);
>> > > > > > @@ -1669,9 +1673,12 @@ static int xpad_init_input(struct
>> > > > > > usb_xpad
>> > > > > > *xpad)
>> > > > > >
>> > > > > >         /* set up model-specific ones */
>> > > > > >         if (xpad->xtype == XTYPE_XBOX360 || xpad->xtype ==
>> > > > > > XTYPE_XBOX360W ||
>> > > > > > -           xpad->xtype == XTYPE_XBOXONE) {
>> > > > > > +               xpad->xtype == XTYPE_XBOXONE) {
>> > > > > >                 for (i = 0; xpad360_btn[i] >= 0; i++)
>> > > > > >                         input_set_capability(input_dev, EV_KEY,
>> > > > > > xpad360_btn[i]);
>> > > > > > +               if (xpad->mapping & MAP_SHARE_BUTTON) {
>> > > > > > +                       input_set_capability(input_dev, EV_KEY,
>> > > > > > KEY_RECORD);
>> > > > >
>> > > > > Is there not a better keycode to use than "Record"? Should a
>> > > > > "share"
>> > > > > keycode be added?
>> > > > >
>> > > > > I couldn't find a share button in the most recent USB HID Usage
>> > > > > Tables:
>> > > > > https://www.usb.org/document-library/hid-usage-tables-121
>> > > > >
>> > > > > > +               }
>> > > > > >         } else {
>> > > > > >                 for (i = 0; xpad_btn[i] >= 0; i++)
>> > > > > >                         input_set_capability(input_dev, EV_KEY,
>> > > > > > xpad_btn[i]);
>> > > > >
>> > > > >
>>
>>