Re: [PATCH 2/2] rc-main: remove input events for repeat messages

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On Sat, Jul 01, 2017 at 01:20:50PM +0100, Sean Young wrote:
>On Thu, Jun 22, 2017 at 09:24:00PM +0200, David Härdeman wrote:
>> Protocols like NEC generate around 10 repeat events per second.
>> 
>> The input events are not very useful for userspace but still waste power
>> by waking up every listener. So let's remove them (MSC_SCAN events
>> are still generated for the initial keypress).
>> 
>> Signed-off-by: David Härdeman <david@xxxxxxxxxxx>
>> ---
>>  drivers/media/rc/rc-main.c |   13 ++++---------
>>  1 file changed, 4 insertions(+), 9 deletions(-)
>> 
>> diff --git a/drivers/media/rc/rc-main.c b/drivers/media/rc/rc-main.c
>> index 7387bd4d75b0..9f490aa11bc4 100644
>> --- a/drivers/media/rc/rc-main.c
>> +++ b/drivers/media/rc/rc-main.c
>> @@ -616,16 +616,11 @@ void rc_repeat(struct rc_dev *dev)
>>  
>>  	spin_lock_irqsave(&dev->keylock, flags);
>>  
>> -	if (!dev->keypressed)
>> -		goto out;
>> -
>> -	input_event(dev->input_dev, EV_MSC, MSC_SCAN, dev->last_scancode);
>> -	input_sync(dev->input_dev);
>
>I don't agree with this. It's good to see something in user space when
>a repeat received. This is useful for debugging purposes.

Not going to press the issue, but dev_dbg might be another option if
debugging is the intended use-case?

-- 
David Härdeman



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