firmware: don't use WebUSB landing page for firmware, it's annoying

firmware/usb.c

@@ -334,7 +334,7 @@ static usbd_device *usbd_dev;
 static uint8_t usbd_control_buffer[256] __attribute__ ((aligned (2)));
 
 static const struct usb_device_capability_descriptor* capabilities[] = {
-	(const struct usb_device_capability_descriptor*)&webusb_platform_capability_descriptor,
+	(const struct usb_device_capability_descriptor*)&webusb_platform_capability_descriptor_no_landing_page,
 };
 
 static const struct usb_bos_descriptor bos_descriptor = {

webusb.c

@@ -33,6 +33,17 @@ const struct webusb_platform_descriptor webusb_platform_capability_descriptor =
 	.iLandingPage = 1
 };
 
+const struct webusb_platform_descriptor webusb_platform_capability_descriptor_no_landing_page = {
+	.bLength = WEBUSB_PLATFORM_DESCRIPTOR_SIZE,
+	.bDescriptorType = USB_DT_DEVICE_CAPABILITY,
+	.bDevCapabilityType = USB_DC_PLATFORM,
+	.bReserved = 0,
+	.platformCapabilityUUID = WEBUSB_UUID,
+	.bcdVersion = 0x0100,
+	.bVendorCode = WEBUSB_VENDOR_CODE,
+	.iLandingPage = 0
+};
+
 static const char* webusb_https_url;
 
 static int webusb_control_vendor_request(usbd_device *usbd_dev,

webusb.h

@@ -26,6 +26,8 @@
 #define WEBUSB_VENDOR_CODE 0x01
 
 extern const struct webusb_platform_descriptor webusb_platform_capability_descriptor;
+extern const struct webusb_platform_descriptor webusb_platform_capability_descriptor_no_landing_page;
+
 extern void webusb_setup(usbd_device* usbd_dev, const char* https_url);
 
 #endif