Re: [PATCH 1/6] HID: hid-input: Add offhook and ring LEDs for headsets

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On Tue, 6 Jul 2021, Benjamin Tissoires wrote:

> > A lot of USBHID headsets available on the market have LEDs that indicate
> > ringing and off-hook states when used with VoIP applications. This
> > commit exposes these LEDs via the standard sysfs interface.
> >
> > Signed-off-by: Maxim Mikityanskiy <maxtram95@xxxxxxxxx>
> > ---
> >  drivers/hid/hid-input.c                | 2 ++
> >  drivers/input/input-leds.c             | 2 ++
> >  include/uapi/linux/input-event-codes.h | 2 ++
> >  3 files changed, 6 insertions(+)
> >
> > diff --git a/drivers/hid/hid-input.c b/drivers/hid/hid-input.c
> > index 4286a51f7f16..44b8243f9924 100644
> > --- a/drivers/hid/hid-input.c
> > +++ b/drivers/hid/hid-input.c
> > @@ -798,6 +798,8 @@ static void hidinput_configure_usage(struct hid_input *hidinput, struct hid_fiel
> >                 case 0x4b:  map_led (LED_MISC);     break;    /*   "Generic Indicator"        */
> >                 case 0x19:  map_led (LED_MAIL);     break;    /*   "Message Waiting"          */
> >                 case 0x4d:  map_led (LED_CHARGING); break;    /*   "External Power Connected" */
> > +               case 0x17:  map_led (LED_OFFHOOK);  break;    /*   "Off-Hook"                 */
> > +               case 0x18:  map_led (LED_RING);     break;    /*   "Ring"                     */
> >
> >                 default: goto ignore;
> >                 }
> > diff --git a/drivers/input/input-leds.c b/drivers/input/input-leds.c
> > index 0b11990ade46..bc6e25b9af25 100644
> > --- a/drivers/input/input-leds.c
> > +++ b/drivers/input/input-leds.c
> > @@ -33,6 +33,8 @@ static const struct {
> >         [LED_MISC]      = { "misc" },
> >         [LED_MAIL]      = { "mail" },
> >         [LED_CHARGING]  = { "charging" },
> > +       [LED_OFFHOOK]   = { "offhook" },
> 
> I am pretty sure this also needs to be reviewed by the led folks.
> Adding them in Cc.

Can we please get Ack from the LED maintainers? Thanks.

> 
> Cheers,
> Benjamin
> 
> > +       [LED_RING]      = { "ring" },
> >  };
> >
> >  struct input_led {
> > diff --git a/include/uapi/linux/input-event-codes.h b/include/uapi/linux/input-event-codes.h
> > index 225ec87d4f22..dd785a5b5076 100644
> > --- a/include/uapi/linux/input-event-codes.h
> > +++ b/include/uapi/linux/input-event-codes.h
> > @@ -925,6 +925,8 @@
> >  #define LED_MISC               0x08
> >  #define LED_MAIL               0x09
> >  #define LED_CHARGING           0x0a
> > +#define LED_OFFHOOK            0x0b
> > +#define LED_RING               0x0c
> >  #define LED_MAX                        0x0f
> >  #define LED_CNT                        (LED_MAX+1)
> >
> > --
> > 2.32.0
> >
> 

-- 
Jiri Kosina
SUSE Labs




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