Re: [PATCH v1] input: make use of the input_set_capability helper

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Hi Olliver,

On Wed, Jan 07, 2015 at 08:31:06AM +0100, Olliver Schinagl wrote:
> From: Olliver Schinagl <oliver@xxxxxxxxxxx>
> 
> Almost all of the speaker drivers under input manipulate the ev bits
> directly, which is not needed, as there is a helper available.
> 
> This patch makes use of the helper for the speaker drivers.
> 
> Signed-off-by: Olliver Schinagl <oliver@xxxxxxxxxxx>
> ---
>  drivers/input/misc/cm109.c         | 4 ++--
>  drivers/input/misc/ixp4xx-beeper.c | 5 ++---
>  drivers/input/misc/m68kspkr.c      | 5 ++---
>  drivers/input/misc/pcspkr.c        | 5 ++---
>  drivers/input/misc/pwm-beeper.c    | 5 +----
>  drivers/input/misc/sparcspkr.c     | 6 ++----
>  6 files changed, 11 insertions(+), 19 deletions(-)
> 
> diff --git a/drivers/input/misc/cm109.c b/drivers/input/misc/cm109.c
> index 9365535..8e41070 100644
> --- a/drivers/input/misc/cm109.c
> +++ b/drivers/input/misc/cm109.c
> @@ -767,10 +767,10 @@ static int cm109_usb_probe(struct usb_interface *intf,
>  	input_dev->keycodesize = sizeof(unsigned char);
>  	input_dev->keycodemax = ARRAY_SIZE(dev->keymap);
>  
> -	input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_SND);
> -	input_dev->sndbit[0] = BIT_MASK(SND_BELL) | BIT_MASK(SND_TONE);
> +	input_set_capability(input_dev, EV_SND, SND_BELL | SND_TONE);

No, input_set_capability() takes single event code, not bitmask. The
fact that it works for these 2 values of SND events is pure coincidence
(the old code wasn't much better though).

>  
>  	/* register available key events */
> +	input_dev->evbit[0] = BIT_MASK(EV_KEY);

Would prefer __set_bit(EV_KEY, input_dev->evbit); here instead.

Thanks.

-- 
Dmitry
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