Re: Logitech C270 webcam floods the log

[Oliver Neukum <oneukum@suse.com>]

Am Donnerstag, den 07.11.2019, 14:52 +0100 schrieb Jean Delvare:
> 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.
> 

Hi,

try

usbcore.autosuspend=-1

on the kernel command line.

	Regards
		Oliver