core+legacy: reintroduce USB 2.1 landing page for firmware

core/src/usb.py

@@ -62,7 +62,6 @@ bus = io.USB(
     product="TREZOR",
     interface="TREZOR Interface",
     serial_number=get_device_id(),
-    usb21_landing=False,
 )
 bus.add(iface_wire)
 if __debug__:

legacy/firmware/usb.c

@@ -344,7 +344,7 @@ 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_no_landing_page,
+         *)&webusb_platform_capability_descriptor,
 };
 
 static const struct usb_bos_descriptor bos_descriptor = {

legacy/webusb.c

@@ -32,17 +32,6 @@ const struct webusb_platform_descriptor webusb_platform_capability_descriptor =
      .bVendorCode = WEBUSB_VENDOR_CODE,
      .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 enum usbd_request_return_codes webusb_control_vendor_request(

legacy/webusb.h

@@ -27,8 +27,6 @@
 
 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);