linux-kernel - Re: [PATCH] v4l: Build error with et61x251, if V4L1

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Message-Id: <200709131707.16666.luca.risolia@studio.unibo.it>
Date:	Thu, 13 Sep 2007 17:07:16 +0200
From:	Luca Risolia <luca.risolia@...dio.unibo.it>
To:	aherrman@...or.de
Cc:	akpm@...ux-foundation.org, linux-usb-devel@...ts.sourceforge.net,
	video4linux-list@...hat.com, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] v4l: Build error with et61x251, if V4L1_COMPAT is not selected

On Thursday 13 September 2007 14:36:27 aherrman@...or.de wrote:
> With current git tree I get an build error
> for et61x251, if V4L1_COMPAT is not selected:
>
> drivers/media/video/et61x251/et61x251_core.c: In et61x251_show_:
> drivers/media/video/et61x251/et61x251_core.c:718: error: implicit
> declaration of to_video_device
>
> Fix: add VIDEO_V4L1_COMPAT as a dependency for this driver.

No, wait. The driver really is V4L2 only. If you can, please fix it by 
replacing to_video_device() with container_of() instead:

cam = video_get_drvdata(container_of(cd, struct video_device, class_dev));

Best regards
Luca Risolia

>
> Signed-off-by: Andreas Herrmann <aherrman@...or.de>
> ---
>  drivers/media/video/et61x251/Kconfig |    2 +-
>  1 files changed, 1 insertions(+), 1 deletions(-)
>
> diff --git a/drivers/media/video/et61x251/Kconfig
> b/drivers/media/video/et61x251/Kconfig index dcc1a03..9143424 100644
> --- a/drivers/media/video/et61x251/Kconfig
> +++ b/drivers/media/video/et61x251/Kconfig
> @@ -1,6 +1,6 @@
>  config USB_ET61X251
>  	tristate "USB ET61X[12]51 PC Camera Controller support"
> -	depends on VIDEO_V4L2
> +	depends on VIDEO_V4L2 && VIDEO_V4L1_COMPAT
>  	---help---
>  	  Say Y here if you want support for cameras based on Etoms ET61X151
>  	  or ET61X251 PC Camera Controllers.


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