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Diffstat (limited to 'hw/usb/desc.c')
-rw-r--r--hw/usb/desc.c20
1 files changed, 11 insertions, 9 deletions
diff --git a/hw/usb/desc.c b/hw/usb/desc.c
index 2b8febb020..3c77368cb0 100644
--- a/hw/usb/desc.c
+++ b/hw/usb/desc.c
@@ -200,21 +200,23 @@ int usb_desc_endpoint(const USBDescEndpoint *ep, uint8_t *dest, size_t len)
{
uint8_t bLength = ep->is_audio ? 0x09 : 0x07;
uint8_t extralen = ep->extra ? ep->extra[0] : 0;
+ USBDescriptor *d = (void *)dest;
if (len < bLength + extralen) {
return -1;
}
- dest[0x00] = bLength;
- dest[0x01] = USB_DT_ENDPOINT;
- dest[0x02] = ep->bEndpointAddress;
- dest[0x03] = ep->bmAttributes;
- dest[0x04] = usb_lo(ep->wMaxPacketSize);
- dest[0x05] = usb_hi(ep->wMaxPacketSize);
- dest[0x06] = ep->bInterval;
+ d->bLength = bLength;
+ d->bDescriptorType = USB_DT_ENDPOINT;
+
+ d->u.endpoint.bEndpointAddress = ep->bEndpointAddress;
+ d->u.endpoint.bmAttributes = ep->bmAttributes;
+ d->u.endpoint.wMaxPacketSize_lo = usb_lo(ep->wMaxPacketSize);
+ d->u.endpoint.wMaxPacketSize_hi = usb_hi(ep->wMaxPacketSize);
+ d->u.endpoint.bInterval = ep->bInterval;
if (ep->is_audio) {
- dest[0x07] = ep->bRefresh;
- dest[0x08] = ep->bSynchAddress;
+ d->u.endpoint.bRefresh = ep->bRefresh;
+ d->u.endpoint.bSynchAddress = ep->bSynchAddress;
}
if (ep->extra) {
memcpy(dest + bLength, ep->extra, extralen);