linux-kernel - Re: [PATCH v5 2/2] media: uvcvideo: Do power management granularly

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Date:   Mon, 12 Dec 2022 11:59:16 +0900
From:   Sergey Senozhatsky <senozhatsky@...omium.org>
To:     Ricardo Ribalda <ribalda@...omium.org>
Cc:     Mauro Carvalho Chehab <mchehab@...nel.org>,
        Guenter Roeck <linux@...ck-us.net>,
        Tomasz Figa <tfiga@...omium.org>,
        Alan Stern <stern@...land.harvard.edu>,
        linux-kernel@...r.kernel.org, Max Staudt <mstaudt@...omium.org>,
        Sergey Senozhatsky <senozhatsky@...omium.org>,
        Yunke Cao <yunkec@...omium.org>,
        Laurent Pinchart <laurent.pinchart@...asonboard.com>,
        Hans Verkuil <hverkuil-cisco@...all.nl>,
        linux-media@...r.kernel.org
Subject: Re: [PATCH v5 2/2] media: uvcvideo: Do power management granularly

On (22/12/06 15:06), Ricardo Ribalda wrote:
> 
> Instead of suspending/resume the USB device at open()/close(), do it
> when the device is actually used.
> 
> This way we can reduce the power consumption when a service is holding
> the video device and leaving it in an idle state.
> 
> Reviewed-by: Tomasz Figa <tfiga@...omium.org>
> Reviewed-by: Max Staudt <mstaudt@...omium.org>
> Signed-off-by: Ricardo Ribalda <ribalda@...omium.org>

Reviewed-by: Sergey Senozhatsky <senozhatsky@...omium.org>