Re: [Qemu-devel] About usb passthru and speed mismatch

2015-06-16 Thread Gerd Hoffmann
On Do, 2015-06-11 at 23:47 +0800, Lin Ma wrote: > Hi Gerd, > > Based on the current implementation of 'usb_host_open' in > hw/usb/host-libusb.c, > > When user performs usb_add, The usb device will be detached from kernel > first, Then be checked for speed mismatch second. > If it found speed mi

[Qemu-devel] About usb passthru and speed mismatch

2015-06-11 Thread Lin Ma
Hi Gerd, Based on the current implementation of 'usb_host_open' in hw/usb/host-libusb.c, When user performs usb_add, The usb device will be detached from kernel first, Then be checked for speed mismatch second. If it found speed mismatch, The usb device isn't attached to guest, But the usb d