semantic: 0.212 other: 0.197 device: 0.153 graphic: 0.068 debug: 0.053 PID: 0.045 performance: 0.043 files: 0.041 network: 0.040 permissions: 0.040 socket: 0.031 vnc: 0.030 boot: 0.027 KVM: 0.020 debug: 0.492 device: 0.128 other: 0.101 files: 0.072 PID: 0.058 semantic: 0.034 performance: 0.025 network: 0.021 boot: 0.016 graphic: 0.016 permissions: 0.012 socket: 0.012 vnc: 0.008 KVM: 0.005 usb-host: hostaddr=0XX is parsed as octal number when doing device_add usb-host,hostaddr=010 taking 010 in the format of both lsusb or udev, qemu parses an octal number and assumes hostaddr=8. (i used a 2.0 device on the ehci.0 bus) at least to me that is confusing. also: when adding a non-existent usb device (bogus hostaddr), the following is created according to 'usb info': Device 1.0, Port 1, Speed 1.5 Mb/s, Product USB Host Device in usb_qdev_init(): usb_claim_port is called but usb_device_init does not report an error and thus usb_release_port is not called. ps: when using host-libusb.c and tested on 1.5.1.tgz Looking through old bug tickets... is this still an issue with the latest version of QEMU? Or could we close this ticket nowadays? [Expired for QEMU because there has been no activity for 60 days.]