On 03/11/11 08:18, erik.rull@xxxxxxxxxxxxx wrote: > Hi David, > > I did a second iteration and it looked way better, maybe my first attempts > were somehow buggy. > > First - please review your DPRINTF in the usb-ehci.c, there is a variable > "dev" undefined in line 504/505 when enabling the debugging defines at the > top of the file, the compiler complains there. Args to that function was changed recently; I just deleted the printf. > > I tested again with your hints, here my results: > > - using -device usb-host causes windows not to boot completely, using > -usbdevice host:auto:*.* is fine! > > - using -usbdevice tablet is better than using -device usb-tablet > > > - only one "external" USB device gets detected, the rest is just ignored. > qemu does not recognize the device, but the host OS sees it (dmesg output) I have not used the auto feature. What happens if you disable it and instead add the devices you want? I have been able to add both a printer and a USB key to a guest -- both on the EHCI bus. And just verified again - both printer and USB key accessible within the guest. > > - if the first plugged in device is removed from the usb port and the > second (not detected one) is still plugged in, then this second device gets > now detected by qemu and is handled to the guest Interesting. Gerd made a lot of changes to the USB code right before 0.14. I have not really followed the change set - or how it might impact ehci. It could be a bug independent of ehci as well -- try it without the ehci patch and see if the same occurs. > > Additionally something really interesting: > if I disable USB 2.0 in my host BIOS and boot my guest system with the qemu > ehci patch, then I get no longer the BSOD in windows when removing the > printer! :-) So the patch seems also to improve the usb-uhci stuff. Our mileage differs here as well. I'm running Fedora 14 on my laptop. With the ehci enabled version of qemu-kvm I have no problems connecting and disconnecting devices -- host or guest. David > > So everything is fine now beside the "more than one USB device" issue. > > Any ideas what this could be? > > Thanks a lot for your support! > > Best regards, > > Erik > > > -- > To unsubscribe from this list: send the line "unsubscribe kvm" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html > -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
