Re: [PATCH] input: add driver support for Sharp gp2ap002a00f proximity sensor

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On 11/11/2011 09:06 AM, oskar.andero@xxxxxxxxxxxxxxxx wrote:
> Hi Jonathan,
> 
> Thanks for reviewing!
> 
>> ALS sensor in input?  Please see all the previous discussions about
>> this.  I'm guessing you are aware of this given you cc'd me though!
> 
> Actually, this chip only has a hardwired ALS, meaning nothing is
> exposed through the input interfaces.
> 
>> Having read driver, this is a proximity switch. Basically it's a button.
>> The interface used should reflect this rather than pretending you are
>> outputing an ABS value.  Hence this one probably does fit squarely in
>> input, but that's for Dmitry to comment on.
> 
> Yes, I agree.
> 
>> Also, irq fields contain irqs not gpios + the two gpio related pdata
>> functions need justification.
>>
>> Various small points inline.
> 
>>> --- /dev/null
>>> +++ b/include/linux/gp2ap002a00f.h
>>> @@ -0,0 +1,13 @@
>>> +#ifndef _GP2AP002A00F_H_
>>> +#define _GP2AP002A00F_H_
>>> +
>> What is this doing in the header?
>>> +#define GP2A_I2C_NAME   "gp2ap002a00f"
> 
> This is used for setting up the I2C_BOARD_INFO() in the board file. I
> grepped linux/input and found some other drivers doing the same, but if this
> is not common practice I can of course move the define to the .c-file.
> 
Fair enough.  I'm personally a  bit unclear what the advantage in doing
it this way is rather than just putting the string in directly but it
isn't important!
> I'll prepare v2 based on the rest of your comments!
> 
> Thanks!
> 
> -Oskar

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