linux-kernel - Re: [PATCH v9 8/8] Loongson: YeeLoong: add input/hotkey driver

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Message-ID: <1260499660.3193.17.camel@falcon.domain.org>
Date:	Fri, 11 Dec 2009 10:47:40 +0800
From:	Wu Zhangjin <wuzhangjin@...il.com>
To:	Ralf Baechle <ralf@...ux-mips.org>
Cc:	akpm@...ux-foundation.org, linux-mips@...ux-mips.org,
	linux-kernel@...r.kernel.org,
	Dmitry Torokhov <dmitry.torokhov@...il.com>,
	"Rafael J . Wysocki" <rjw@...k.pl>, zhangfx@...ote.com,
	linux-laptop@...r.kernel.org,
	Stephen Rothwell <sfr@...b.auug.org.au>,
	Pavel Machek <pavel@....cz>
Subject: Re: [PATCH v9 8/8] Loongson: YeeLoong: add input/hotkey driver

On Tue, 2009-12-08 at 22:15 +0800, Wu Zhangjin wrote:
> From: Wu Zhangjin <wuzhangjin@...il.com>
> 
> This patch adds Hotkey Driver, which will do related actions for The
> hotkey event(/sys/class/input) and report the corresponding input keys
> to the user-space applications.
> 
> [NOTE:
> 
> This patch is based on the sparse keymap library in:
> 
> git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input next
> 
> of Dmitry Torokhov. that sparse keymap support is also queued for
> 2.6.33. Before the above branch is pulled by linus, this patch is not
> appliable.]
> 
[...]
> +
> +/* yeeloong_wifi_handler may be implemented in the wifi driver */
> +sci_handler yeeloong_wifi_handler;
> +EXPORT_SYMBOL(yeeloong_wifi_handler);
> +

Because we have reported the KEY_WLAN to user-space and If we provide
the standard rfkill interfaces too, there is no need to handle the Fn+F5
event in kernel space, will remove the above three lines the following
related source code.

> +static void do_event_action(int event)
> +{
> +	sci_handler handler;
> +	int reg, status;
> +	struct key_entry *ke;
> +
> +	reg = 0;
> +	handler = NULL;
> +
> +	switch (event) {
[...]
> +	case EVENT_WLAN:
> +		/* We use 2 to indicate it as a switch */
> +		status = 2;
> +		handler = yeeloong_wifi_handler;
> +		break;

Will remove it and send the this patch as v10 later.

Best Regards,
	Wu Zhangjin

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