Re: [PATCH 1/7] Adding empia base driver
[Posted November 11, 2008 by corbet]
| From: |
| Mauro Carvalho Chehab <mchehab-AT-infradead.org> |
| To: |
| Hans Verkuil <hverkuil-AT-xs4all.nl> |
| Subject: |
| Re: [PATCH 1/7] Adding empia base driver |
| Date: |
| Sun, 2 Nov 2008 02:27:28 -0200 |
| Message-ID: |
| <20081102022728.68e5e564@pedra.chehab.org> |
| Cc: |
| "Markus Rechberger" <mrechberger-AT-gmail.com>,
"Linux Kernel Mailing List" <linux-kernel-AT-vger.kernel.org>,
em28xx <em28xx-AT-mcentral.de>, acano-AT-fastmail.fm,
"Andre Kelmanson" <akelmanson-AT-gmail.com>,
"Bouwsma Barry" <freebeer.bouwsma-AT-gmail.com>,
"Dan Kreiser" <kreiser-AT-informatik.hu-berlin.de>,
"Frank Neuber" <fn-AT-kernelport.de>,
"Jelle de Jong" <jelledejong-AT-powercraft.nl>,
"John Stowers" <john.stowers.lists-AT-gmail.com>,
"Lukas Kuna" <lukas.kuna-AT-evkanet.net>,
"Stefan Vonolfen" <stefan.vonolfen-AT-gmail.com>,
"Stephan Berberig" <s.berberig-AT-arcor.de>,
"Thomas Giesecke" <thomas.giesecke-AT-ibgmbh-naumburg.de>,
"Vitaly Wool" <vwool-AT-ru.mvista.com>,
"Zhenyu Wang" <zhen78-AT-gmail.com>,
v4l <video4linux-list-AT-redhat.com>, linux-dvb-AT-linuxtv.org,
greg-AT-kroah.com, Alan Cox <alan-AT-lxorguk.ukuu.org.uk> |
| Archive-link: |
| Article, Thread
|
On Sat, 1 Nov 2008 14:59:17 +0100
Hans Verkuil <hverkuil@xs4all.nl> wrote:
> Hi Markus,
>
> As promised I've done a review of your empia driver and looked at what
> needs to be done to get it into the kernel.
>
> First of all, I've no doubt that your empia driver is better and
> supports more devices than the current em28xx driver. I also have no
> problem adding your driver separate from the current driver. It's been
> done before (certain networking drivers spring to mind) and while
> obviously not ideal I expect that the older em28xx driver can probably
> be removed after a year or something like that.
>
> In my opinion it's pretty much hopeless trying to convert the current
> em28xx driver into what you have. It's a huge amount of work that no
> one wants to do and (in this case) with very little benefit. Of course,
> Mauro has the final say in this.
>
Both upstream and the 4 duplicated drivers have similar functionality. Also,
the upstream driver is actively maintained. So, there's no sense on accepting
those duplicated drivers.
Also, just replacing one existing driver by a newer one will cause regressions
on some already fixed bugs and remove some improvements that the upstream driver
suffered.
If there's a bug or a lack of functionality on em28xx, cx25843, xc5000 or
tuner-xc2028, it is just a matter of submitting patches fixing those bugs or
adding newer features.
Cheers,
Mauro
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