linux-kernel - Re: How to set fops in "struct platform_pwm_backlight

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Message-ID: <52663D6D.5000806@gmail.com>
Date:	Tue, 22 Oct 2013 16:55:09 +0800
From:	Mark Zhang <nvmarkzhang@...il.com>
To:	Thierry Reding <thierry.reding@...il.com>
CC:	rpurdie@...ys.net, jg1.han@...sung.com,
	Jean-Christophe PLAGNIOL-VILLARD <plagnioj@...osoft.com>,
	tomi.valkeinen@...com, linux-pwm@...r.kernel.org,
	"linux-fbdev@...r.kernel.org" <linux-fbdev@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: How to set fops in "struct platform_pwm_backlight_data"?

On 10/22/2013 03:24 PM, Thierry Reding wrote:
> On Fri, Oct 18, 2013 at 12:48:12PM +0800, Mark Zhang wrote:
[...]
>>>
>>
>> Okay, I just want to set the "notify" function pointer in "struct
>> platform_pwm_backlight_data", because I want to tune the brightness
>> value before the pwm-bl sets the brightness to hardware. I don't know
>> how to do that, unless we define the platform data explicitly.
> 
> Okay, my question should have been what you need the functions for and
> why you think you need them.
> 

If I understanding you correctly, I suppose I've said that: "because I
want to tune the brightness value before the pwm-bl sets the brightness
to hardware".

Mark
> Thierry
> 
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