linux-kernel - Re: [PATCH 24/25] video/ivtv: Convert pci_table entries to PCI_VDEVICE (if PCI_ANY

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Message-ID: <1279280574.2905.18.camel@morgan.silverblock.net>
Date:	Fri, 16 Jul 2010 07:42:54 -0400
From:	Andy Walls <awalls@...metrocast.net>
To:	Jarod Wilson <jarod@...sonet.com>
Cc:	Peter Huewe <PeterHuewe@....de>,
	Kernel Janitors <kernel-janitors@...r.kernel.org>,
	Mauro Carvalho Chehab <mchehab@...radead.org>,
	Ian Armstrong <ian@...mst.demon.co.uk>,
	Douglas Schilling Landgraf <dougsland@...hat.com>,
	Steven Toth <stoth@...nellabs.com>, ivtv-devel@...vdriver.org,
	linux-media@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 24/25] video/ivtv: Convert pci_table entries to 
 PCI_VDEVICE (if PCI_ANY_ID is used)

On Thu, 2010-07-15 at 18:07 -0400, Jarod Wilson wrote:
> On Thu, Jul 15, 2010 at 5:43 PM, Andy Walls <awalls@...metrocast.net> wrote:
> > On Thu, 2010-07-15 at 21:08 +0200, Peter Huewe wrote:
> >> From: Peter Huewe <peterhuewe@....de>

> > a. PCI_ANY_ID indicates to the reader a wildcard match is being
> > performed.  The PCI_VDEVICE() macro hides that to some degree.
> >
> > b. PCI_VENDOR_ID_ICOMP clearly indicates that ICOMP is a vendor.
> > "ICOMP" alone does not hint to the reader that is stands for a company
> > (the now defunct "Internext Compression, Inc.").
> 
> Personally, I'm a fan of comments around things like this to describe
> *exactly* what device(s) they're referring to.

Something like this then for ivtv: 

/* Claim every iTVC15/CX23415 or CX23416 based PCI Subsystem ever made */

?


>  Then ICOMP being all
> alone without the prefix isn't really much of an issue (though it
> could still be easily mistaken for something other than a pci vendor
> id, I suppose).

Probably not.  Another minor side effect is that it breaks a tag search
for easily jumping to the definition to see the ID value.  "ICOMP" won't
be in the tags file, but "PCI_VENDOR_ID_ICOMP" will be.

Regards,
Andy

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