From: Jean Delvare <jdelvare@suse.de>
To: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: linux-media@vger.kernel.org,
Mauro Carvalho Chehab <mchehab@kernel.org>,
linux-usb@vger.kernel.org
Subject: Re: Logitech C270 webcam floods the log
Date: Thu, 7 Nov 2019 14:52:38 +0100 [thread overview]
Message-ID: <20191107145238.0e7c9388@endymion> (raw)
In-Reply-To: <20191107143941.1649db47@endymion>
On Thu, 7 Nov 2019 14:39:41 +0100, Jean Delvare wrote:
> On Wed, 23 Oct 2019 17:20:16 +0300, Laurent Pinchart wrote:
> > Is this before or after the uvcvideo driver gets involved ? One easy way
> > to check is to move the uvcvideo.ko module out of the way so that it
> > doesn't get loaded automatically (or just blacklist it in
> > /etc/modprobe.d/) and then plug the camera.
>
> I did as you suggested and it turns out that the "reset high-speed USB
> device" messages are not printed originally, they start being printed
> right after the uvcvideo kernel driver gets loaded. So that would be a
> problem with the uvcvideo driver?
>
> When unloading the uvcvideo driver, there's one more "reset high-speed
> USB device" message and then no more.
One more data point: the log flood happens when the uvcvideo driver is
loaded but the webcam is unused. If I start e.g. cheese, it takes a
long time to start but once started, the log flood stops. As soon as I
stop cheese, the log flood starts again.
--
Jean Delvare
SUSE L3 Support
next prev parent reply other threads:[~2019-11-07 13:52 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-23 13:18 Logitech C270 webcam floods the log Jean Delvare
2019-10-23 14:20 ` Laurent Pinchart
2019-11-07 13:39 ` Jean Delvare
2019-11-07 13:52 ` Jean Delvare [this message]
2019-11-07 14:56 ` Oliver Neukum
2019-11-07 17:49 ` Jean Delvare
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