diff --git a/libc/kernel/uapi/linux/videodev2.h b/libc/kernel/uapi/linux/videodev2.h
index d8c7549..da57468 100644
--- a/libc/kernel/uapi/linux/videodev2.h
+++ b/libc/kernel/uapi/linux/videodev2.h
@@ -65,6 +65,7 @@
 };
 #define V4L2_TYPE_IS_MULTIPLANAR(type) ((type) == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE || (type) == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
 #define V4L2_TYPE_IS_OUTPUT(type) ((type) == V4L2_BUF_TYPE_VIDEO_OUTPUT || (type) == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE || (type) == V4L2_BUF_TYPE_VIDEO_OVERLAY || (type) == V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY || (type) == V4L2_BUF_TYPE_VBI_OUTPUT || (type) == V4L2_BUF_TYPE_SLICED_VBI_OUTPUT || (type) == V4L2_BUF_TYPE_SDR_OUTPUT || (type) == V4L2_BUF_TYPE_META_OUTPUT)
+#define V4L2_TYPE_IS_CAPTURE(type) (! V4L2_TYPE_IS_OUTPUT(type))
 enum v4l2_tuner_type {
   V4L2_TUNER_RADIO = 1,
   V4L2_TUNER_ANALOG_TV = 2,
@@ -428,6 +429,7 @@
 #define V4L2_FMT_FLAG_EMULATED 0x0002
 #define V4L2_FMT_FLAG_CONTINUOUS_BYTESTREAM 0x0004
 #define V4L2_FMT_FLAG_DYN_RESOLUTION 0x0008
+#define V4L2_FMT_FLAG_ENC_CAP_FRAME_INTERVAL 0x0010
 enum v4l2_frmsizetypes {
   V4L2_FRMSIZE_TYPE_DISCRETE = 1,
   V4L2_FRMSIZE_TYPE_CONTINUOUS = 2,
@@ -523,6 +525,7 @@
 #define V4L2_BUF_CAP_SUPPORTS_REQUESTS (1 << 3)
 #define V4L2_BUF_CAP_SUPPORTS_ORPHANED_BUFS (1 << 4)
 #define V4L2_BUF_CAP_SUPPORTS_M2M_HOLD_CAPTURE_BUF (1 << 5)
+#define V4L2_BUF_CAP_SUPPORTS_MMAP_CACHE_HINTS (1 << 6)
 struct v4l2_plane {
   __u32 bytesused;
   __u32 length;