Date: Sun, 03 Jul 2011 18:33:20 +0200 From: Torfinn Ingolfsen <torfinn.ingolfsen@broadpark.no> To: freebsd-usb@FreeBSD.org Subject: How to debug a misbehaving usb device (DYMO LabelManager PC)? Message-ID: <20110703183320.b5b2aecb.torfinn.ingolfsen@broadpark.no>
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Hello, So, I have this misbehaving usb device, a label printer which I use to label things in my house (which poweradapter belongs to which device, and so on). It is a DYMO LabelManager PC[1], which is an old device. Not to be confused with the LabelManager PC II. Based on information found on the web, this device isn't following the usb specification 100%. And no driver exists for FreeBSD. I do not plan on changing that. What I try to do, is to "pass" the usb device from a FreeBSD host, to a virtual machine running windows (in VirtualBox). So far, I have managed to get the win vm to regocnize the label printer, adn install drivers for it. But - it will not print, claiming there is some error with the usb port. And that might be true. On the host side, I am using the latest FreeBSD 8.2-stable: root@kg-v7# uname -a FreeBSD kg-v7.kg4.no 8.2-STABLE FreeBSD 8.2-STABLE #6: Sat Jul 2 18:39:45 CEST 2011 root@kg-v7.kg4.no:/usr/obj/usr/src/sys/GENERIC amd64 And in /var/log/messages, I see this when the device is attached: Jul 3 18:09:59 kg-v7 kernel: usb_alloc_device: Failure selecting configuration index 0:USB_ERR_STALLED, port 4, addr 3 (ignored) Jul 3 18:09:59 kg-v7 kernel: ugen0.3: <vendor 0x0922> at usbus0 And usbconfig info: root@kg-v7# usbconfig -u 0 -a 3 ugen0.3: <product 0x0011 vendor 0x0922> at usbus0, cfg=255 md=HOST spd=LOW (1.5Mbps) pwr=ON root@kg-v7# usbconfig -u 0 -a 3 dump_device_desc ugen0.3: <product 0x0011 vendor 0x0922> at usbus0, cfg=255 md=HOST spd=LOW (1.5Mbps) pwr=ON bLength = 0x0003 bDescriptorType = 0x0001 bcdUSB = 0x0209 bDeviceClass = 0x0021 bDeviceSubClass = 0x0000 bDeviceProtocol = 0x0001 bMaxPacketSize0 = 0x0001 idVendor = 0xc000 idProduct = 0x0901 bcdDevice = 0x0004 iManufacturer = 0x0000 <no string> iProduct = 0x0002 <retrieving string failed> iSerialNumber = 0x0003 <retrieving string failed> bNumConfigurations = 0x0001 What is the best way to debuug this device? I am hoping to get it to a state where it can be forwarded to the virtual machine, and work there. More details on the FreeBSD page for my label printer[2] References: 1) http://global.dymo.com/ieIE/Products/LabelManager_PC.html 2) http://sites.google.com/site/tingox/lm_pc_freebsd -- Regards, Torfinn Ingolfsen
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