linux-kernel - Re: [PATCH v2 1/1] media: v4l: Don't turn on privacy LED if streamon fails

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Message-ID: <20240415074008.GB25078@pendragon.ideasonboard.com>
Date: Mon, 15 Apr 2024 10:40:08 +0300
From: Laurent Pinchart <laurent.pinchart@...asonboard.com>
To: Sakari Ailus <sakari.ailus@...ux.intel.com>
Cc: linux-media@...r.kernel.org, tomi.valkeinen@...asonboard.com,
	Hans de Goede <hdegoede@...hat.com>,
	Mauro Carvalho Chehab <mchehab@...nel.org>,
	Hans Verkuil <hverkuil@...all.nl>,
	Umang Jain <umang.jain@...asonboard.com>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 1/1] media: v4l: Don't turn on privacy LED if streamon
 fails

On Mon, Apr 15, 2024 at 07:29:41AM +0000, Sakari Ailus wrote:
> On Mon, Apr 15, 2024 at 10:18:12AM +0300, Laurent Pinchart wrote:
> > > Maybe because a large majority is GPIO-controlled?
> > 
> > GPIOs can fail, in particular when they're on I2C GPIO expanders.
> 
> Sure, but gpiod_set_value() return type is also void.

I know, so there's nothing we can do short term.

> It just works... right?

Until it doesn't :-)

-- 
Regards,

Laurent Pinchart