On 07/17/2015 08:59 AM, Gerd Hoffmann wrote:
On Do, 2015-07-16 at 17:47 +0200, Juergen Gross wrote:
Today a host usb device can be specified either via <vendor>:<product>
or via <bus>.<device> syntax. Add the possibility to specify it via
<bus>-<port> as this is needed for the support of xen pvusb backend.
-device usb-host,hostbus=<bus>,hostport=<port> should already do what
you want.
The problem is I have to add the device while qemu is already running,
so I'm using usb_host_device_open(). To be able to specify the device
via <bus>-<port> I have to add the capability to find the device by
those parameters.
I haven't found another way to achieve this.
diff --git a/hw/usb/host-legacy.c b/hw/usb/host-legacy.c
index 3cc9c42..526108c 100644
--- a/hw/usb/host-legacy.c
+++ b/hw/usb/host-legacy.c
I don't think we should extend this. This exists purely for backward
compatibility reasons.
+out:
qdev_prop_set_uint32(&dev->qdev, "hostbus", filter.bus_num);
qdev_prop_set_uint32(&dev->qdev, "hostaddr", filter.addr);
+ if (filter.port) {
+ qdev_prop_set_string(&dev->qdev, "port", filter.port);
Hmm? This should have been "hostport", right?
Hmm, yes.
Juergen
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