linux-kernel - Re: [PATCH 2.6.18-mm2] acpi: add backlight support to the sony

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Date:	Sun, 29 Oct 2006 18:50:05 +0100
From:	Pavel Machek <pavel@....cz>
To:	Luming Yu <luming.yu@...il.com>
Cc:	Matt Domsch <Matt_Domsch@...l.com>, len.brown@...el.com,
	Richard Hughes <hughsient@...il.com>,
	Andrew Morton <akpm@...l.org>,
	Alessandro Guido <alessandro.guido@...il.com>,
	linux-kernel@...r.kernel.org, linux-acpi@...r.kernel.org,
	jengelh@...ux01.gwdg.de, gelma@...ma.net, ismail@...dus.org.tr
Subject: Re: [PATCH 2.6.18-mm2] acpi: add backlight support to the sony_acpi driver

Hi!

> > Some whitespace is not okay there...
> > 									Pavel
> 
> updated version.

> index 27597c5..1a18cdb 100644
> --- a/drivers/video/backlight/backlight.c
> +++ b/drivers/video/backlight/backlight.c
> @@ -190,7 +190,7 @@ static int fb_notifier_callback(struct n
>   * Creates and registers new backlight class_device. Returns either an
>   * ERR_PTR() or a pointer to the newly allocated device.
>   */
> -struct backlight_device *backlight_device_register(const char *name, void *devdata,
> +struct backlight_device *backlight_device_register(const char *name,struct device *dev,  void *devdata,
>  						   struct

80-columns, and fix the whitespace, please.

> --- /dev/null
> +++ b/drivers/video/output.c
> @@ -0,0 +1,110 @@
> +/*
> + * Video output switch support
> + */

I guess this one needs copyright/GPL.

> +	struct output_device *new_dev;
> +	int	ret_code = 0;

Indentation is wrong where... 

> +	new_dev = (struct output_device *) kzalloc( sizeof(struct
output_device), GFP_KERNEL);

Cast should not be needed.

> +	strlcpy(new_dev->class_dev.class_id, name, KOBJ_NAME_LEN);
> +	class_set_devdata(&new_dev->class_dev, devdata);
> +	ret_code = class_device_register(&new_dev->class_dev);
> +	if (ret_code){

") {", please.

> +		kfree (new_dev);

..and no space between kfree and its arguments.


> @@ -0,0 +1,27 @@
> +The output sysfs class driver is to provide video output abstract layer that can be used to hook platform specific methods to enable/disable video output device through common sysfs interface.
> +

80-columns, please. And some title would be nice.

> @@ -141,11 +144,11 @@ struct acpi_video_device_cap {
>  	u8 _ADR:1;		/*Return the unique ID */
>  	u8 _BCL:1;		/*Query list of brightness control levels supported */
>  	u8 _BCM:1;		/*Set the brightness level */
> +	u8 _BQC:1;		/*Get current brightness level */
>  	u8 _DDC:1;		/*Return the EDID for this device */
>  	u8 _DCS:1;		/*Return status of output device */
>  	u8 _DGS:1;		/*Query graphics state */
>  	u8 _DSS:1;		/*Device state set */

It is nicer to have space between /* and comment.
								Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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