linux-kernel - Re: [PATCH 04/12] hwmon: lis3: Update coordinates at polled device open

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Date:	Sun, 24 Oct 2010 16:19:42 +0200
From:	Éric Piel <eric.piel@...mplin-utc.net>
To:	Samu Onkalo <samu.p.onkalo@...ia.com>
CC:	khali@...ux-fr.org, guenter.roeck@...csson.com, jic23@....ac.uk,
	lm-sensors@...sensors.org, linux-i2c@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 04/12] hwmon: lis3: Update coordinates at polled device
 open

Op 22-10-10 13:57, Samu Onkalo schreef:
> Call input device poll function at device open to refresh coordinates
> immediately. This is needed for the case where poll interval is set to
> zero and coordinate updates happens purely under interrupt control.
>
> Signed-off-by: Samu Onkalo<samu.p.onkalo@...ia.com>
Acked-by: Eric Piel <eric.piel@...mplin-utc.net>
> ---
>   drivers/hwmon/lis3lv02d.c |    5 +++++
>   1 files changed, 5 insertions(+), 0 deletions(-)
>
> diff --git a/drivers/hwmon/lis3lv02d.c b/drivers/hwmon/lis3lv02d.c
> index fe97390..e2e0bb4 100644
> --- a/drivers/hwmon/lis3lv02d.c
> +++ b/drivers/hwmon/lis3lv02d.c
> @@ -312,6 +312,11 @@ static void lis3lv02d_joystick_open(struct input_polled_dev *pidev)
>
>   	if (lis3_dev.pdata&&  lis3_dev.whoami == WAI_8B&&  lis3_dev.idev)
>   		atomic_set(&lis3_dev.wake_thread, 1);
> +	/*
> +	 * Update coordinates for the case where poll interval is 0 and
> +	 * the chip in running purely under interrupt control
> +	 */
> +	lis3lv02d_joystick_poll(pidev);
>   }
>
>   static void lis3lv02d_joystick_close(struct input_polled_dev *pidev)

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