linux-kernel - Re: [PATCH 1/2] input: Add support of Synaptics Clickpad device

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Date:	Tue, 20 Apr 2010 22:44:55 -0700
From:	Dmitry Torokhov <dmitry.torokhov@...il.com>
To:	Takashi Iwai <tiwai@...e.de>
Cc:	linux-input@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/2] input: Add support of Synaptics Clickpad device

On Mon, Apr 19, 2010 at 12:29:49PM +0200, Takashi Iwai wrote:
> Hi Dmitry,
> 
> At Mon, 19 Apr 2010 01:32:22 -0700,
> Dmitry Torokhov wrote:
> > 
> > Hi Takashi,
> > 
> > On Wed, Apr 14, 2010 at 05:10:22PM +0200, Takashi Iwai wrote:
> > > Add the detection of Synaptics Clickpad device.
> > > The device can be detected a new query command 0x0c.  The clickpad
> > > flags are in cap[0]:4 and cap[1]:0 bits.  But, the driver checks
> > > first the product id bits in the ext capabilities to be sure, so
> > > that it skips the new check on older devices.
> > > 
> > 
> > Instead of looking at the product id, can we check the number of
> > supported extended capabilities queries and act accordingly, like the
> > patch below?
> 
> Yes, it worked.  (Though, I've tested only new machines.)
> 


Seems to be working on older (at least one ;) ) as well.

> 
> > @@ -162,6 +163,16 @@ static int synaptics_capability(struct psmouse *psmouse)
> >  				priv->ext_cap &= 0xff0fff;
> >  		}
> >  	}
> > +
> > +	if (SYN_EXT_CAP_REQUESTS(priv->capabilities) >= 4) {
> > +		if (synaptics_send_cmd(psmouse, SYN_QUE_EXT_CAPAB_0C, cap)) {
> > +			printk(KERN_ERR "Synaptics claims to have extended capability 0x0c,"
> > +			       " but I'm not able to read it.");
> 
> Here missing a newline, BTW.
> 

Fixed. Thank you for testing. I have that patch in 'for-linus' for .34.
Please push your synaptics X changes upstream as well.

-- 
Dmitry
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