On Tue, Oct 22, 2013 at 04:55:09PM +0800, Mark Zhang wrote: > 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". Why do you want to tune the brightness value? What are you trying to achieve? Thierry
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