>From: "Eugen Barticel" <[email protected]> >To: "BLFS Support List" <[email protected]> >Subject: Re: [blfs-support] Assign USB device to a Guest VM - permission >problem
>I think you should add user to vbox or vboxuser groups as well, if you didn't >already. >On Sat, Oct 25, 2014 at 5:40 AM, Cliff McDiarmid <[email protected]> >wrote:>Hi >Can anyone help here with a VM problem? >I'm using Qemu, with KVM, on LFS 7.5(with systemd)to run a virtual machine and >need to assign a usb device(gps) from the host to guest. >If I run the VM from root, with the necessary arguments, then everything works >fine. >But I want to run it from the user. And here is where the problem lies. I've >included a udev rule for the device in the host like this: >#Prolific Technology GPS >SUBSYSTEMS=="usb", ATTRS{idVendor}=="067b", ATTRS{idProduct}=="2303", >MODE="0644", GROUP="usb" >I've made sure the user is part of the 'usb' group, but I still get the >following error: >'libusbx: error [_get_usbfs_fd] libusbx couldn't open USB device >/dev/bus/usb/003/003: >Permission denied libusbx: error [_get_usbfs_fd] libusbx requires write access >to USB device nodes' >I've tried changing the 'mode', I shouldn't have to, but this makes no >difference. Changed the rules file to: SUBSYSTEM=="usb", ATTRS{idVendor}=="067b", GROUP="usb", MODE="0644" That did it. Dropping the product id. Don't know why. thanks MAC -- http://lists.linuxfromscratch.org/listinfo/blfs-support FAQ: http://www.linuxfromscratch.org/blfs/faq.html Unsubscribe: See the above information page
