The following reply was made to PR usb/173666; it has been noted by GNATS.

From: "Wojciech A. Koszek" <wkos...@freebsd.org>
To: Hans Petter Selasky <hsela...@c2i.net>
Cc: freebsd-usb@freebsd.org, freebsd-gnats-sub...@freebsd.org
Subject: Re: usb/173666: [USB, LIBUSB] usb_reset() behavior different between
 GNU/Linux and FreeBSD
Date: Wed, 19 Dec 2012 06:40:25 +0000

 On Sat, Nov 17, 2012 at 01:19:34PM +0100, Hans Petter Selasky wrote:
 > On Friday 16 November 2012 23:47:29 Wojciech A. Koszek wrote:
 > > >Number:         173666
 > > >Category:       usb
 > > >Synopsis:       [USB, LIBUSB] usb_reset() behavior different between
 > > >GNU/Linux and FreeBSD Confidential:   no
 > > >Severity:       non-critical
 > > >Priority:       low
 > > >Responsible:    freebsd-usb
 > > >State:          open
 > > >Quarter:
 > > >Keywords:
 > > >Date-Required:
 > > >Class:          sw-bug
 > > >Submitter-Id:   current-users
 > > >Arrival-Date:   Fri Nov 16 22:50:00 UTC 2012
 > > >Closed-Date:
 > > >Last-Modified:
 > > >Originator:     Wojciech A. Koszek
 > > >Release:        9.0-RELEASE
 > > 
 > > >Organization:
 > > FreeBSD
 > > 
 > > >Environment:
 > > FreeBSD seu 9.0-RELEASE FreeBSD 9.0-RELEASE #0: Tue Jan  3 07:15:25 UTC
 > > 2012     r...@obrian.cse.buffalo.edu:/usr/obj/usr/src/sys/GENERIC  i386
 > > 
 > > >Description:
 > > I have a driver written for libusb, which works fine under GNU/Linux and
 > > libusb. Device:
 > > 
 > > gen0.2: <JSB283 Relay Module J-Works,Inc> at usbus0, cfg=0 md=HOST spd=LOW
 > > (1.5Mbps) pwr=ON
 > > 
 > > (I used USB sniffer to uncover traffic based on what Windows was doing)
 > > 
 > > Under Linux usb_reset()+usb_set_configuration() calls works fine. Under
 > > FreeBSD I have to disable calling usb_reset(), otherwise
 > > usb_set_configuration() fails with I/O error.
 > > 
 > 
 > According to:
 > 
 > http://libusb.sourceforge.net/doc/function.usbreset.html
 > 
 > What you describe is the expected behaviour.
 
 Hans,
 
 I agree. This bug case can be closed then. Useful feature of our API would
 be to fail on a handle, if usb_reset() was called on it.
 
 -- 
 Wojciech A. Koszek
 wkos...@freebsd.czest.pl
 http://FreeBSD.czest.pl/~wkoszek/
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