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Date:      Mon, 8 Jul 2019 10:30:30 -0700
From:      Steve Kargl <sgk@troutmask.apl.washington.edu>
To:        Hans Petter Selasky <hps@selasky.org>
Cc:        Ian Lepore <ian@freebsd.org>, freebsd-current@freebsd.org, takawata@freebsd.org
Subject:   Re: Someone broke USB
Message-ID:  <20190708173030.GA60139@troutmask.apl.washington.edu>
In-Reply-To: <20190708172414.GA60059@troutmask.apl.washington.edu>
References:  <99a61cc8-495f-a333-b4bc-46fc929bae37@selasky.org> <20190707185818.GA51398@troutmask.apl.washington.edu> <20ee6a81-d513-8332-8e47-6676dbb9a159@selasky.org> <20190707203635.GA53065@troutmask.apl.washington.edu> <2ccb6b71-022d-5b66-3ba9-007e2647b3e2@selasky.org> <20190707222555.GA55146@troutmask.apl.washington.edu> <602f5c9b-e15e-d08f-f388-47fc0a560803@selasky.org> <20190708170323.GA59922@troutmask.apl.washington.edu> <ca435fbe-9942-5b02-0ffc-9d6c5962d1e3@selasky.org> <20190708172414.GA60059@troutmask.apl.washington.edu>

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On Mon, Jul 08, 2019 at 10:24:14AM -0700, Steve Kargl wrote:
> On Mon, Jul 08, 2019 at 07:09:39PM +0200, Hans Petter Selasky wrote:
> > On 2019-07-08 19:03, Steve Kargl wrote:
> > > On Mon, Jul 08, 2019 at 11:50:31AM +0200, Hans Petter Selasky wrote:
> > >> Hi Steve,
> > >>
> > >> Can you test this patch?
> > >>
> > >> I made a slight variant which delay the explore threads instead of the
> > >> main thread running all the sysinits.
> > >>
> > >> --HPS
> > > 
> > > With this patch, the kernel does not find any
> > > USB devices.
> > > 
> > 
> > Did you double check the patch was compiled?
> > 
> > Do you see the new sysctl added?
> > 
> 
> Yes, the new sysctl is added. 
> 
> % sysctl -a | grep usb | grep explore
> hw.usb.explore_wait: 250
> 

Setting hw.usb.explore_wait=500 in /boot/loader.conf
allowed the laptop to find the mouse and external 
hard drive.  It seems at least for my laptop that
250 is too conservative.

-- 
Steve



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