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Date: Fri, 11 Nov 2011 10:06:16 +0100
From: <oskar.andero@...yericsson.com>
To: Jonathan Cameron <jic23@...nel.org>
CC: "dmitry.torokhov@...il.com" <dmitry.torokhov@...il.com>,
"linux-input@...r.kernel.org" <linux-input@...r.kernel.org>,
"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
"aghayal@...eaurora.org" <aghayal@...eaurora.org>,
"Cavin, Courtney" <Courtney.Cavin@...yericsson.com>
Subject: Re: [PATCH] input: add driver support for Sharp gp2ap002a00f
proximity sensor
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.
I'll prepare v2 based on the rest of your comments!
Thanks!
-Oskar
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