A portable scanner is a great asset to those manning a booth at a job fair, for example, when the full complement of hardware usually at one's disposal in an office must be left behind. Best Portable Scanners Review & Comparison, Last Update December 13, 2018 Portability of gadgets is a blessing we can hardly imagine our life without anymore. Epson DS-80W Wireless Portable Document Scanner Review: Epson FastFoto FF-680W Review. We regularly update our Best Scanners roundup, so should you encounter an 'oldie but goodie,' it simply. The 5 Best Portable Document Scanners Mobile document scanners are lightweight portable tools ideal for the mobile professional, or DIY photo archivist, who needs a powerful but speedy scanner that can be tucked into a briefcase or travel tote. Portable scanner review. The Brother ADS-1250W is the best portable document scanner you can buy because of how easy it is to use compared with its closest rivals. Brother’s software provides ample control and puts the most important settings at your fingertips.

I am trying to passthrough my USB Webcam into my Windows 7 Enterprise x86-64 QEMU/KVM guest, which is managed by virt-manager. First I lookup the bus/device ID: $ lsusb Bus 002 Device 008: ID 046d:0825 Logitech, Inc. Webcam C270 [.] Then I open the running guest in virt-manager and click Hardware Details > Add Hardware > USB Host Device and select the correct device ID. Here the first oddity shows up: virt-manager shows no name for the device, only the ID. Immediately after I click 'Finish', Windows 7 detects a new device being plugged in and installs a driver for it. Sadly it detects it as 'NEC USB HUB', instead of as a webcam. My question is: • How do I correctly passthrough a device from Linux to Windows, so that it shows up as a webcam there?

The host OS is Ubuntu 14.04 x86-64 and the guest is Windows 7 Enterprise x86-64, both having installed all updates. Ubuntu runs Linux 3.13.0-43-generic, virt-manager 0.9.5-1ubuntu3 and qemu 2.0.0+dfsg-2ubuntu1.9. During the installation of Windows, I installed the Windows virtio drivers version 0.1-94, and after the installation of Windows added the Windows spice-guest-tools version 0.74. Another oddity that the guest shows is that it is unable to shutdown after installing the spice-guest-tools. This, which seems to be the wrong place for this type of questions. Check this link:, quote from there: There are too many usb devices. Four spice usb redirection slots.

One usb tablet. Leaving only one usb port free, where qemu automagically plugs in a usb hub to avoid running out of usb ports. This is where the 'nec usb hub' comes from. And as the emulated usb hub supports usb 1.1 only the webcam ends up on a slow port. This is where the speed mismatch comes from, which is root cause why the webcam doesn't show up in the guest. The solution could be: Delete a couple of the USB redirector devices.

Sep 25, 2018 - 7 posts in this topic Last Reply December 21, 2018. From USB 2.0 (EHCI) to USB 3.0 (either nec XHCI or qemu XHCI), I get an error message.