diff --git a/libc/kernel/uapi/linux/usb/g_uvc.h b/libc/kernel/uapi/linux/usb/g_uvc.h
index 0aeba3d..40fad1d 100644
--- a/libc/kernel/uapi/linux/usb/g_uvc.h
+++ b/libc/kernel/uapi/linux/usb/g_uvc.h
@@ -29,6 +29,8 @@
 #define UVC_EVENT_SETUP (V4L2_EVENT_PRIVATE_START + 4)
 #define UVC_EVENT_DATA (V4L2_EVENT_PRIVATE_START + 5)
 #define UVC_EVENT_LAST (V4L2_EVENT_PRIVATE_START + 5)
+#define UVC_STRING_CONTROL_IDX 0
+#define UVC_STRING_STREAMING_IDX 1
 struct uvc_request_data {
   __s32 length;
   __u8 data[60];
diff --git a/libc/kernel/uapi/linux/usb/video.h b/libc/kernel/uapi/linux/usb/video.h
index b45bada..c3d360a 100644
--- a/libc/kernel/uapi/linux/usb/video.h
+++ b/libc/kernel/uapi/linux/usb/video.h
@@ -316,7 +316,7 @@
   __u8 bDefaultFrameIndex;
   __u8 bAspectRatioX;
   __u8 bAspectRatioY;
-  __u8 bmInterfaceFlags;
+  __u8 bmInterlaceFlags;
   __u8 bCopyProtect;
 } __attribute__((__packed__));
 #define UVC_DT_FORMAT_UNCOMPRESSED_SIZE 27
@@ -349,7 +349,7 @@
   __u8 bDefaultFrameIndex;
   __u8 bAspectRatioX;
   __u8 bAspectRatioY;
-  __u8 bmInterfaceFlags;
+  __u8 bmInterlaceFlags;
   __u8 bCopyProtect;
 } __attribute__((__packed__));
 #define UVC_DT_FORMAT_MJPEG_SIZE 11