[ovirt-users] USB Modem in a VM
Martin Polednik
mpolednik at redhat.com
Fri Jan 16 16:11:19 UTC 2015
----- Original Message -----
> From: "VONDRA Alain" <AVONDRA at unicef.fr>
> To: "Martin Polednik" <mpolednik at redhat.com>
> Cc: users at ovirt.org, "Michal Skrivanek" <mskrivan at redhat.com>
> Sent: Friday, January 16, 2015 4:00:28 PM
> Subject: RE: [ovirt-users] USB Modem in a VM
>
> I've replaced with openReadOnly(0), but had a "argument 1 must be string or
> None, not int" issue, so I changed to None, but I had :
>
> [root at unc-srv-hyp2 ~]$ python2.6 usb_dev.py
> Traceback (most recent call last):
> File "usb_dev.py", line 5, in <module>
> devices = conn.listAllDevices()
> TypeError: listAllDevices() takes exactly 2 arguments (1 given)
>
> I put the VM name in openReadOnly("unc-srv-prnt3") and I had this issue :
>
> libvirt: error : no connection driver available for unc-srv-prnt3
> Traceback (most recent call last):
> File "usb_dev.py", line 4, in <module>
> conn = libvirt.openReadOnly("unc-srv-prnt3")
> File "/usr/lib64/python2.6/site-packages/libvirt.py", line 247, in
> openReadOnly
> if ret is None:raise libvirtError('virConnectOpenReadOnly() failed')
> libvirt.libvirtError: no connection driver available for unc-srv-prnt3
>
> What's wrong ?
>
Missing flags parameter again, which version of libvirt are you running?
openReadOnly(0) and listAllDevices(0) should be correct for your version,
sorry for that again.
>
> Alain VONDRA
> Chargé d'exploitation des Systèmes d'Information
> Direction Administrative et Financière
> +33 1 44 39 77 76
> UNICEF France
> 3 rue Duguay Trouin 75006 PARIS
> www.unicef.fr
>
>
>
>
> -----Message d'origine-----
> De : Martin Polednik [mailto:mpolednik at redhat.com]
> Envoyé : vendredi 16 janvier 2015 15:47
> À : VONDRA Alain
> Cc : users at ovirt.org; Michal Skrivanek
> Objet : Re: [ovirt-users] USB Modem in a VM
>
>
>
> ----- Original Message -----
> > From: "VONDRA Alain" <AVONDRA at unicef.fr>
> > To: "Martin Polednik" <mpolednik at redhat.com>
> > Cc: users at ovirt.org, "Michal Skrivanek" <mskrivan at redhat.com>
> > Sent: Friday, January 16, 2015 2:45:09 PM
> > Subject: Re: [ovirt-users] USB Modem in a VM
> >
> > Hi Martin,
> > That's what I've done, but the result is a missing argument.
> >
> > [root at unc-srv-hyp2 ~]$ python2.6 usb_dev.py Traceback (most recent
> > call last):
> > File "usb_dev.py", line 4, in <module>
> > conn = libvirt.openReadOnly()
> > TypeError: openReadOnly() takes exactly 1 argument (0 given
>
> My mistake, you can use openReadOnly(0) (can be omitted for some libvirt
> versions).
>
> > Alain
> >
> >
> >
> >
> > Alain VONDRA
> > Chargé d'exploitation des Systèmes d'Information Direction
> > Administrative et Financière
> > +33 1 44 39 77 76
> > UNICEF France
> > 3 rue Duguay Trouin 75006 PARIS
> > www.unicef.fr
> >
> >
> >
> >
> > -----Message d'origine-----
> > De : Martin Polednik [mailto:mpolednik at redhat.com] Envoyé : vendredi
> > 16 janvier 2015 13:18 À : VONDRA Alain Cc : users at ovirt.org; Michal
> > Skrivanek Objet : Re: [ovirt-users] USB Modem in a VM
> >
> >
> >
> > ----- Original Message -----
> > > From: "VONDRA Alain" <AVONDRA at unicef.fr>
> > > To: "Martin Polednik" <mpolednik at redhat.com>
> > > Cc: users at ovirt.org, "Michal Skrivanek" <mskrivan at redhat.com>
> > > Sent: Friday, January 16, 2015 12:30:10 PM
> > > Subject: Re: [ovirt-users] USB Modem in a VM
> > >
> > > Ok Martin,
> > > I'll try the python script, but I'm a newbie in python, which
> > > argumenet I need to put to execute it ?
> > > Thank you
> > > Alain
> >
> > Simply save it into something like listdevices.py and run $ python
> > listdevices.py.
> > It will list libvirt XML for all of the devices, you just need to find
> > correct vendor id/product id for your usb device and then use the name
> > for detach e.g. nodedev-detach usb_usb0.
> >
> > > Alain VONDRA
> > > Chargé d'exploitation des Systèmes d'Information Direction
> > > Administrative et Financière
> > > +33 1 44 39 77 76
> > > UNICEF France
> > > 3 rue Duguay Trouin 75006 PARIS
> > > www.unicef.fr
> > >
> > >
> > >
> > >
> > > -----Message d'origine-----
> > > De : Martin Polednik [mailto:mpolednik at redhat.com] Envoyé : vendredi
> > > 16 janvier 2015 12:18 À : VONDRA Alain Cc : Alon Bar-Lev; Michal
> > > Skrivanek; users at ovirt.org Objet : Re: [ovirt-users] USB Modem in a
> > > VM
> > >
> > >
> > >
> > > ----- Original Message -----
> > > > From: "VONDRA Alain" <AVONDRA at unicef.fr>
> > > > To: "Martin Polednik" <mpolednik at redhat.com>
> > > > Cc: "Alon Bar-Lev" <alonbl at redhat.com>, "Michal Skrivanek"
> > > > <mskrivan at redhat.com>, users at ovirt.org
> > > > Sent: Friday, January 16, 2015 12:10:35 PM
> > > > Subject: RE: [ovirt-users] USB Modem in a VM
> > > >
> > > > Hi,
> > > > I'm sure of the device, it's clearer with lsusb, you see all the
> > > > infos about the device :
> > > >
> > > > Bus 001 Device 006: ID 0572:1321 Conexant Systems (Rockwell), Inc.
> > > > Device Descriptor:
> > > > bLength 18
> > > > bDescriptorType 1
> > > > bcdUSB 1.10
> > > > bDeviceClass 2 Communications
> > > > bDeviceSubClass 0
> > > > bDeviceProtocol 0
> > > > bMaxPacketSize0 64
> > > > idVendor 0x0572 Conexant Systems (Rockwell), Inc.
> > > > idProduct 0x1321
> > > > bcdDevice 1.00
> > > > iManufacturer 1 Conexant
> > > > iProduct 2 USB Modem
> > > > iSerial 3 24680246
> > > > bNumConfigurations 2
> > > > Configuration Descriptor:
> > > > bLength 9
> > > > bDescriptorType 2
> > > > wTotalLength 73
> > > > bNumInterfaces 2
> > > > bConfigurationValue 1
> > > > iConfiguration 0
> > > > bmAttributes 0x80
> > > > (Bus Powered)
> > > > MaxPower 100mA
> > > > Interface Descriptor:
> > > > bLength 9
> > > > bDescriptorType 4
> > > >
> > > > With nodedev we just see device nodes, pretty difficult to
> > > > identify, even with --tree opt :
> > > >
> > > > usb_1_0_1_0
> > > > usb_1_1
> > > > usb_1_1_1_0
> > > > usb_1_1_4
> > > > usb_1_1_4_1_0
> > > > usb_1_1_4_1_1
> > > > usb_1_1_6
> > > > usb_1_1_6_1
> > > > usb_1_1_6_1_0
> > > > usb_1_1_6_1_1_0
> > > > usb_1_1_6_1_1_1
> > > > usb_1_1_6_1_1_2
> > > > usb_2_0_1_0
> > > > usb_2_1
> > > > usb_2_1_1_0
> > > > usb_usb1
> > > > usb_usb2
> > >
> > > The issue is, you need to get libvirt name of the device and run the
> > > nodedev-detach
> > > - have you done that with no success?
> > >
> > > If not, use some simple script such as (python)
> > >
> > > import libvirt
> > >
> > > conn = libvirt.openReadOnly()
> > > devices = conn.listAllDevices()
> > > for dev in devices:
> > > print dev.XMLDesc()
> > >
> > > to easily find the device and use the <name> element for
> > > nodedev-detach call.
> > > That should handle unbinding it from the driver and possibly binding
> > > it to some usb stub if that exists.
> > > If that doesn't fix it, I admit that I'm not sure what could be the
> > > cause apart from OS/hw.
> > >
> > > > The xml injected is, I think right :
> > > >
> > > > <hostdev mode='subsystem' type='usb' managed='yes'>
> > > > <source>
> > > > <vendor id='0x0572'/>
> > > > <product id='0x1321'/>
> > > > </source>
> > > > </hostdev>
> > > >
> > > > Even with The device on the VM xml, the device does'nt appears in
> > > > the Windows VM.
> > > > Regards
> > > > Alain
> > > >
> > > >
> > > >
> > > >
> > > >
> > > >
> > > >
> > > > Alain VONDRA
> > > > Chargé d'exploitation des Systèmes d'Information Direction
> > > > Administrative et Financière
> > > > +33 1 44 39 77 76
> > > > UNICEF France
> > > > 3 rue Duguay Trouin 75006 PARIS
> > > > www.unicef.fr
> > > >
> > > >
> > > >
> > > >
> > > > -----Message d'origine-----
> > > > De : Martin Polednik [mailto:mpolednik at redhat.com] Envoyé :
> > > > vendredi
> > > > 16 janvier 2015 11:37 À : VONDRA Alain Cc : Alon Bar-Lev; Michal
> > > > Skrivanek; users at ovirt.org Objet : Re: [ovirt-users] USB Modem in
> > > > a VM
> > > >
> > > > ----- Original Message -----
> > > > > From: "VONDRA Alain" <AVONDRA at unicef.fr>
> > > > > To: "Alon Bar-Lev" <alonbl at redhat.com>, "Michal Skrivanek"
> > > > > <mskrivan at redhat.com>
> > > > > Cc: users at ovirt.org
> > > > > Sent: Thursday, January 15, 2015 10:33:19 PM
> > > > > Subject: Re: [ovirt-users] USB Modem in a VM
> > > > >
> > > > > Hi,
> > > > > I've tried also to inject the device with virsh attach-device,
> > > > > all seems to work but nothing happen in the VM :
> > > > >
> > > > > [root at unc-srv-hyp2 ~]$ virsh attach-device unc-srv-prnt3
> > > > > usb-modem.xml Please enter your authentication name: root Please
> > > > > enter your password:
> > > > > Device attached successfully
> > > > >
> > > > > What did I do wrong, any ideas ?
> > > >
> > > > Hello,
> > > > One possibility might be the fact that libvirt itself doesn't have
> > > > managed mode for USB devices and I'm not sure virt-manager has the
> > > > appropriate routine handled.
> > > >
> > > > Could you try running
> > > > $ virsh nodedev-list
> > > > to find the correct usb device and then # virsh nodedev-detach
> > > > the_usb_device or posibly nodedev-dettach if you run older libvirt?
> > > >
> > > > After that, try starting VM with hostdev element added to XML.
> > > >
> > > > > Regards
> > > > >
> > > > >
> > > > >
> > > > >
> > > > >
> > > > >
> > > > > Alain VONDRA
> > > > > Chargé d'exploitation des Systèmes d'Information Direction
> > > > > Administrative et Financière
> > > > > +33 1 44 39 77 76
> > > > > UNICEF France
> > > > > 3 rue Duguay Trouin 75006 PARIS www.unicef.fr
> > > > >
> > > > >
> > > > >
> > > > >
> > > > > ________________________________________
> > > > > De : Alon Bar-Lev [alonbl at redhat.com] Envoyé : jeudi 15 janvier
> > > > > 2015
> > > > > 21:23 À : VONDRA Alain; Michal Skrivanek Cc : users at ovirt.org
> > > > > Objet
> > > > > : Re: [ovirt-users] USB Modem in a VM
> > > > >
> > > > > Michal, any clue?
> > > > >
> > > > > ----- Original Message -----
> > > > > > From: "VONDRA Alain" <AVONDRA at unicef.fr>
> > > > > > To: "Alon Bar-Lev" <alonbl at redhat.com>
> > > > > > Cc: users at ovirt.org
> > > > > > Sent: Thursday, January 15, 2015 5:56:47 PM
> > > > > > Subject: RE: [ovirt-users] USB Modem in a VM
> > > > > >
> > > > > > Hi,
> > > > > > Thank you for your answer, I've tried to insert my USB modem,
> > > > > > but it doesn't up in the Windows VM.
> > > > > > I've tried to insert via virt-manager without success, I can't
> > > > > > apply the modification, however I see the modem using lsusb :
> > > > > >
> > > > > > lsusb
> > > > > > Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
> > > > > > Bus
> > > > > > 002 Device
> > > > > > 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 001 Device 002:
> > > > > > ID
> > > > > > 8087:0024 Intel Corp. Integrated Rate Matching Hub Bus 002
> > > > > > Device
> > > > > > 002: ID
> > > > > > 8087:0024 Intel Corp. Integrated Rate Matching Hub Bus 001
> > > > > > Device
> > > > > > 003: ID
> > > > > > 0624:0248 Avocent Corp. Virtual Hub Bus 001 Device 004: ID
> > > > > > 0624:0249 Avocent Corp. Virtual Keyboard/Mouse Bus 002 Device 010:
> > > > > > ID
> > > > > > 0572:1321 Conexant Systems (Rockwell), Inc.
> > > > > >
> > > > > > I've unload the "cdc_acm" kernel module via rmmod without success.
> > > > > > I've also tried to edit the xml appending the ID and VENDDOR tags :
> > > > > >
> > > > > > <hostdev mode='subsystem' type='usb'>
> > > > > > <source>
> > > > > > <vendor id='0x0572'/>
> > > > > > <product id='0x1321'/>
> > > > > > </source>
> > > > > > </hostdev>
> > > > > >
> > > > > > Ut at the first load the config disappears...
> > > > > > Do I need to restart the host or restart libvirtd services ?
> > > > > >
> > > > > > Thanks for your help
> > > > > > Alain
> > > > > >
> > > > > >
> > > > > >
> > > > > > Alain VONDRA
> > > > > > Chargé d'exploitation des Systèmes d'Information Direction
> > > > > > Administrative et Financière
> > > > > > +33 1 44 39 77 76
> > > > > > UNICEF France
> > > > > > 3 rue Duguay Trouin 75006 PARIS www.unicef.fr
> > > > > >
> > > > > >
> > > > > >
> > > > > >
> > > > > > -----Message d'origine-----
> > > > > > De : Alon Bar-Lev [mailto:alonbl at redhat.com] Envoyé : mardi 13
> > > > > > janvier 2015 17:47 À : VONDRA Alain Cc : users at ovirt.org Objet :
> > > > > > Re:
> > > > > > [ovirt-users] USB Modem in a VM
> > > > > >
> > > > > >
> > > > > >
> > > > > > ----- Original Message -----
> > > > > > > From: "VONDRA Alain" <AVONDRA at unicef.fr>
> > > > > > > To: users at ovirt.org
> > > > > > > Sent: Tuesday, January 13, 2015 5:55:01 PM
> > > > > > > Subject: [ovirt-users] USB Modem in a VM
> > > > > > >
> > > > > > >
> > > > > > >
> > > > > > > Hi,
> > > > > > >
> > > > > > > Can you tell me if I can use an USB modem through one of the
> > > > > > > hypervisor hosts to a Windows VM ?
> > > > > > >
> > > > > > > I’d like to install a Windows Fax Server.
> > > > > > >
> > > > > > > Thank you for your answers.
> > > > > >
> > > > > >
> > > > > > should be possible using qemu args: -usbdevice
> > > > > > host:vendor_id:product_id
> > > > > >
> > > > > > in libvirt replace @VENDOR@ and @DEVICE@ to device specific
> > > > > > properties:
> > > > > >
> > > > > > <domain type='kvm'>
> > > > > > <name>...</name>
> > > > > > …
> > > > > > <devices>
> > > > > > …
> > > > > > <hostdev mode='subsystem' type='usb'>
> > > > > > <source>
> > > > > > <vendor id='0x at VENDOR@'/>
> > > > > > <product id='0x at DEVICE@'/>
> > > > > > </source>
> > > > > > </hostdev>
> > > > > > </devices>
> > > > > > </domain>
> > > > > >
> > > > > > if this option is not exposed in ui you can use vdsm-hooks[1] to
> > > > > > modify the libvirt configuration and inject such device.
> > > > > >
> > > > > > Regards,
> > > > > > Alon
> > > > > >
> > > > > > [1] http://www.ovirt.org/VDSM-Hooks
> > > > > >
> > > > > _______________________________________________
> > > > > Users mailing list
> > > > > Users at ovirt.org
> > > > > http://lists.ovirt.org/mailman/listinfo/users
> > > > >
> > > >
> > > _______________________________________________
> > > Users mailing list
> > > Users at ovirt.org
> > > http://lists.ovirt.org/mailman/listinfo/users
> > >
> > _______________________________________________
> > Users mailing list
> > Users at ovirt.org
> > http://lists.ovirt.org/mailman/listinfo/users
> >
>
More information about the Users
mailing list