Date: Sun, 07 Sep 2014 06:42:14 +0000 From: "Poul-Henning Kamp" <phk@phk.freebsd.dk> To: Hans Petter Selasky <hps@selasky.org> Cc: freebsd-hackers@freebsd.org, Maxim V FIlimonov <che@bein.link> Subject: Re: What to do if USB stack seems dead Message-ID: <33743.1410072134@critter.freebsd.dk> In-Reply-To: <540B7AC4.9060504@selasky.org> References: <1455331.JKPkSxLmbq@quad> <540B7AC4.9060504@selasky.org>
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-------- In message <540B7AC4.9060504@selasky.org>, Hans Petter Selasky writes: >On 09/06/14 21:57, Maxim V FIlimonov wrote: >> Lately, I've been heavily experimenting with different USB devices (for >> instance, USB to TTL one, but that's another story), and at a moment I >> encountered that the system doesn't react on new USB devices connected.= The >> connected devices work fine, though. The question is: what can I do in = such a >> case if I don't want to reboot my box? >> > >Hi, > >If a TTY port is not closed, it will prevent other USB devices on that = >particular USB controller from enumerating. I'm pretty sure I have seen this "dead USB" thing on = FreeBSD ni.freebsd.dk 11.0-CURRENT FreeBSD 11.0-CURRENT #3 r270830: without any USB/TTY ports being involved at all... -- = Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 phk@FreeBSD.ORG | TCP/IP since RFC 956 FreeBSD committer | BSD since 4.3-tahoe = Never attribute to malice what can adequately be explained by incompetence= .
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