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usb: Allow overriding of usb_desc at the device level 

This allows devices to present a different set of descriptors based on
device properties.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This commit is contained in:
Hans de Goede 2012-11-17 12:47:16 +01:00 committed by Gerd Hoffmann
parent be41efde3c
commit 386ab487eb
2 changed files with 4 additions and 0 deletions
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1
hw/usb.h
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@ -230,6 +230,7 @@ struct USBDevice {
USBEndpoint ep_out[USB_MAX_ENDPOINTS];
QLIST_HEAD(, USBDescString) strings;
const USBDesc *usb_desc; /* Overrides class usb_desc if not NULL */
const USBDescDevice *device;
int configuration;

3
hw/usb/bus.c
View File

@ -166,6 +166,9 @@ const char *usb_device_get_product_desc(USBDevice *dev)
const USBDesc *usb_device_get_usb_desc(USBDevice *dev)
{
USBDeviceClass *klass = USB_DEVICE_GET_CLASS(dev);
if (dev->usb_desc) {
return dev->usb_desc;
}
return klass->usb_desc;
}