linux-kernel - Re: [PATCH 2/6] hid: Scan the device for group info before adding it

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Message-ID: <20120424124113.GA10055@polaris.bitmath.org>
Date:	Tue, 24 Apr 2012 14:41:13 +0200
From:	"Henrik Rydberg" <rydberg@...omail.se>
To:	Jiri Kosina <jkosina@...e.cz>
Cc:	Dmitry Torokhov <dmitry.torokhov@...il.com>,
	linux-input@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/6] hid: Scan the device for group info before adding it

> > +static int hid_scan_report(struct hid_device *hid)
> > +{
> > +	unsigned int page = 0, delim = 0;
> > +	__u8 *start = hid->dev_rdesc;
> > +	__u8 *end = start + hid->dev_rsize;
> 
> Where do these dev_rdesc and dev_rsize come from? Your patchset doesn't 
> seem to be changing the corresponding struct device members (which are 
> rdesc and rsize currently), right?

Those members are added in the enable-report-fixup-on-rebind patchset,
which this patchset builds on. I only sent that patchset once, to
avoid confusion. Maybe I created some instead. :-)

And yes, the scanning algorithms do not touch the rdesc/rsize
variables, nor the collection state. Those are handled upon attachment
of the driver.

Thanks,
Henrik
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