From owner-freebsd-usb@FreeBSD.ORG Mon Dec 8 06:50:17 2014 Return-Path: Delivered-To: freebsd-usb@FreeBSD.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 502A1522 for ; Mon, 8 Dec 2014 06:50:17 +0000 (UTC) Received: from mail.turbocat.net (heidi.turbocat.net [88.198.202.214]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 10B7CF78 for ; Mon, 8 Dec 2014 06:50:16 +0000 (UTC) Received: from laptop015.home.selasky.org (cm-176.74.213.204.customer.telag.net [176.74.213.204]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.turbocat.net (Postfix) with ESMTPSA id EC07A1FE023; Mon, 8 Dec 2014 07:50:07 +0100 (CET) Message-ID: <54854A3F.1090807@selasky.org> Date: Mon, 08 Dec 2014 07:50:39 +0100 From: Hans Petter Selasky User-Agent: Mozilla/5.0 (X11; FreeBSD amd64; rv:31.0) Gecko/20100101 Thunderbird/31.2.0 MIME-Version: 1.0 To: Torfinn Ingolfsen , freebsd-usb@FreeBSD.org Subject: Re: Is writing usb devices as files (via /dev/ugen*) supported in FreeBSD? References: <20141207235213.059d82613b8ca0fa0f14b78e@getmail.no> In-Reply-To: <20141207235213.059d82613b8ca0fa0f14b78e@getmail.no> Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit X-BeenThere: freebsd-usb@freebsd.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: FreeBSD support for USB List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 08 Dec 2014 06:50:17 -0000 On 12/07/14 23:52, Torfinn Ingolfsen wrote: > Hello, > Question: is writing to the device file (/dev/ugenX) with normal file calls supposed to work in FreeBSD? > (as in "everything is a file" in unix-like operating systems) > > Background: I recently got a usb label printer for cheap: a Dymo LabelManager PnP[1]. I found the dymoprint[2] Python script, which works fairly well on Linux. > It works (AFAICT) by reading / writing the usb device as a regular file, via the device file. > You have to use usb_modeswitch[3] on the printer first, of course. Hi, /dev/ugenX is not a stream. You should either consider using libusb or /dev/ulptX . If it is supposed to work with those devices, you should postfix the endpoint number: /dev/usb/3.4.z --HPS > > Since we have all tools available on FreeBSD, I tried the setup on my FreeBSD workstation, which currently runs FreeBSD 9.3-stable: > tingo@kg-core1$ uname -a > FreeBSD kg-core1.kg4.no 9.3-STABLE FreeBSD 9.3-STABLE #0 r273918: Fri Oct 31 22:52:44 CET 2014 root@kg-core1.kg4.no:/usr/obj/usr/src/sys/GENERIC amd64 > > The detection code in the dymoprint script doesn't work on FreeBSD, but setting the correct device via DEV_NODE in the script works: > tingo@kg-core1$ grep ^DEV_NODE dymoprint2 > DEV_NODE = "/dev/ugen3.4" > > But when I run the script I just get an IO error: > root@kg-core1# python dymoprint2 test > Traceback (most recent call last): > File "dymoprint2", line 313, in > main() > File "dymoprint2", line 309, in main > lm.printLabel(labelmatrix, dottab) > File "dymoprint2", line 183, in printLabel > response = self.sendCommand() > File "dymoprint2", line 80, in sendCommand > responseBin = self.dev.read(8) > IOError: [Errno 5] Input/output error > > > References: > 1) http://global.dymo.com/ieIE/Products/LabelManager_PnP.html > 2) http://sbronner.com/dymoprint/ > 3) http://www.draisberghof.de/usb_modeswitch/ >