slightly change cdc_msc_freertos example

1 files changed, 5 insertions, 1 deletions

diff --git a/src/class/video/video.h b/src/class/video/video.h
index 6319c6536..abf1e34b9 100644
--- a/src/class/video/video.h
+++ b/src/class/video/video.h
@@ -368,6 +368,8 @@ typedef struct TU_ATTR_PACKED {
   uint8_t bCopyProtect;
 } tusb_desc_video_format_uncompressed_t;
 
+TU_VERIFY_STATIC(sizeof(tusb_desc_video_format_uncompressed_t) == 27, "size is not correct");
+
 // Uncompressed payload specs: 3.1.2 frame descriptor
 #define tusb_desc_video_frame_uncompressed_nint_t(_nint) \
   struct TU_ATTR_PACKED { \
@@ -381,7 +383,7 @@ typedef struct TU_ATTR_PACKED {
     uint32_t dwMinBitRate; \
     uint32_t dwMaxBitRate; \
     uint32_t dwMaxVideoFrameBufferSize; /* deprecated in 1.5 */ \
-    uint32_t dwDefaultFrameInterval; \
+    uint32_t dwDefaultFrameInterval; /* 100ns unit */\
     uint8_t  bFrameIntervalType; \
     uint32_t dwFrameInterval[_nint]; \
   }
@@ -413,6 +415,8 @@ typedef struct TU_ATTR_PACKED {
   uint8_t bCopyProtect;
 } tusb_desc_video_format_mjpeg_t;
 
+TU_VERIFY_STATIC(sizeof(tusb_desc_video_format_mjpeg_t) == 11, "size is not correct");
+
 // MJPEG payload specs: 3.1.2 frame descriptor (same as uncompressed)
 typedef tusb_desc_video_frame_uncompressed_t tusb_desc_video_frame_mjpeg_t;
 typedef tusb_desc_video_frame_uncompressed_1int_t tusb_desc_video_frame_mjpeg_1int_t;