linux-kernel - Re: [PATCH] appletouch powersaving

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Date:	Tue, 17 Jul 2007 16:14:38 +0000
From:	Soeren Sonnenburg <kernel@....de>
To:	Johannes Berg <johannes@...solutions.net>
Cc:	Linux Kernel <linux-kernel@...r.kernel.org>,
	linux-input@...ey.karlin.mff.cuni.cz,
	linux-usb-devel@...ts.sourceforge.net,
	Matthew Garrett <mjg59@...f.ucam.org>,
	Nicolas Boichat <nicolas@...chat.ch>,
	Michael Hanselmann <linux-kernel@...smi.ch>,
	Peter Osterlund <petero2@...ia.com>,
	Frank Arnold <frank@...rocco-5v-turbo.de>,
	Stelian Pop <stelian@...ies.net>,
	Greg Kroah-Hartman <greg@...ah.com>
Subject: Re: [PATCH] appletouch powersaving - please apply for 2.6.23-rc1

On Tue, 2007-07-17 at 15:03 +0200, Johannes Berg wrote:
> Hi,
> 
> Good stuff :)
> 
> > +	int                     idlecount;      /* number of empty packets */
> 
> should probably use tabs here.

fixed.

> > +	size = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
> > +			       ATP_GEYSER3_MODE_WRITE_REQUEST_ID,
> > +			       USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE,
> > +			       ATP_GEYSER3_MODE_REQUEST_VALUE,
> > +			       ATP_GEYSER3_MODE_REQUEST_INDEX, &data, 8, 5000);
> > +	<eol>
> 
> trailing whitespace.

fixed
 
> > +	input_report_key(dev->input, BTN_LEFT, dev->data[dev->datalen-1] & 1);
> > +
> 
> 
> > @@ -449,10 +511,19 @@ static void atp_complete(struct urb* urb)
> >  
> >  		/* reset the accumulator on release */
> >  		memset(dev->xy_acc, 0, sizeof(dev->xy_acc));
> > -	}
> >  
> > -	input_report_key(dev->input, BTN_LEFT,
> > -			 !!dev->data[dev->datalen - 1]);
> 
> Any hint as to why you move this? The different test, yes, ok, you
> explained that, but moving it?

OK, Sven Anders also asked why the move... and well the reason was that
when I was trying to figure out what goes wrong I memset everything
including dev->data to zero which required the move ...

Anyway as there is no goto/return inbetween I fail to see that this will
make any difference. So I moved the code back down where it was. 

The new patch containing these cleanups is attached.

Best,
Soeren
-- 
Sometimes, there's a moment as you're waking, when you become aware of
the real world around you, but you're still dreaming.

View attachment "appletouch2.patch" of type "text/x-patch" (5078 bytes)