usb core: use qdev for -usbdevice
This patchs adds infrastructure to handle -usbdevice via qdev callbacks.
USBDeviceInfo gets a name field (for the -usbdevice driver name) and a
callback for -usbdevice parameter parsing.
The new usbdevice_create() function walks the qdev driver list and looks
for a usb driver with a matching name. When a parameter parsing
callback is present it is called, otherwise the device is created via
usb_create_simple().
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
diff --git a/vl.c b/vl.c
index ac9ff52..a58bc06 100644
--- a/vl.c
+++ b/vl.c
@@ -2556,6 +2556,11 @@
if (!usb_enabled)
return -1;
+ /* drivers with .usbdevice_name entry in USBDeviceInfo */
+ dev = usbdevice_create(devname);
+ if (dev)
+ goto done;
+
/* simple devices which don't need extra care */
for (i = 0; i < ARRAY_SIZE(usbdevs); i++) {
if (strcmp(devname, usbdevs[i].name) != 0)
