diff --git a/src/external/iokitd b/src/external/iokitd
index bfcb538ad..7f2194517 160000
--- a/src/external/iokitd
+++ b/src/external/iokitd
@@ -1 +1 @@
-Subproject commit bfcb538ad75a496c4b9ac9e813ee9f2a86d80409
+Subproject commit 7f2194517617a4407001b28fd2cb032ed7799142
diff --git a/src/frameworks/CoreVideo/include/CoreVideo/CVPixelBuffer.h b/src/frameworks/CoreVideo/include/CoreVideo/CVPixelBuffer.h
new file mode 100644
index 000000000..774365942
--- /dev/null
+++ b/src/frameworks/CoreVideo/include/CoreVideo/CVPixelBuffer.h
@@ -0,0 +1,75 @@
+#ifndef CVPIXELBUFFER_H
+#define CVPIXELBUFFER_H
+
+enum
+{
+	kCVPixelFormatType_1Monochrome    = 0x00000001,
+	kCVPixelFormatType_2Indexed       = 0x00000002,
+	kCVPixelFormatType_4Indexed       = 0x00000004,
+	kCVPixelFormatType_8Indexed       = 0x00000008,
+	kCVPixelFormatType_1IndexedGray_WhiteIsZero = 0x00000021,
+	kCVPixelFormatType_2IndexedGray_WhiteIsZero = 0x00000022,
+	kCVPixelFormatType_4IndexedGray_WhiteIsZero = 0x00000024,
+	kCVPixelFormatType_8IndexedGray_WhiteIsZero = 0x00000028,
+	kCVPixelFormatType_16BE555        = 0x00000010,
+	kCVPixelFormatType_16LE555        = 'L555',
+	kCVPixelFormatType_16LE5551       = '5551',
+	kCVPixelFormatType_16BE565        = 'B565',
+	kCVPixelFormatType_16LE565        = 'L565',
+	kCVPixelFormatType_24RGB          = 0x00000018,
+	kCVPixelFormatType_24BGR          = '24BG',
+	kCVPixelFormatType_32ARGB         = 0x00000020,
+	kCVPixelFormatType_32BGRA         = 'BGRA',
+	kCVPixelFormatType_32ABGR         = 'ABGR',
+	kCVPixelFormatType_32RGBA         = 'RGBA',
+	kCVPixelFormatType_64ARGB         = 'b64a',
+	kCVPixelFormatType_48RGB          = 'b48r',
+	kCVPixelFormatType_32AlphaGray    = 'b32a',
+	kCVPixelFormatType_16Gray         = 'b16g',
+	kCVPixelFormatType_30RGB          = 'R10k',
+	kCVPixelFormatType_422YpCbCr8     = '2vuy',
+	kCVPixelFormatType_4444YpCbCrA8   = 'v408',
+	kCVPixelFormatType_4444YpCbCrA8R  = 'r408',
+	kCVPixelFormatType_4444AYpCbCr8   = 'y408',
+	kCVPixelFormatType_4444AYpCbCr16  = 'y416',
+	kCVPixelFormatType_444YpCbCr8     = 'v308',
+	kCVPixelFormatType_422YpCbCr16    = 'v216',
+	kCVPixelFormatType_422YpCbCr10    = 'v210',
+	kCVPixelFormatType_444YpCbCr10    = 'v410',
+	kCVPixelFormatType_420YpCbCr8Planar = 'y420',
+	kCVPixelFormatType_420YpCbCr8PlanarFullRange    = 'f420',
+	kCVPixelFormatType_422YpCbCr_4A_8BiPlanar = 'a2vy',
+	kCVPixelFormatType_420YpCbCr8BiPlanarVideoRange = '420v',
+	kCVPixelFormatType_420YpCbCr8BiPlanarFullRange  = '420f',
+	kCVPixelFormatType_422YpCbCr8_yuvs = 'yuvs',
+	kCVPixelFormatType_422YpCbCr8FullRange = 'yuvf',
+	kCVPixelFormatType_OneComponent8  = 'L008',
+	kCVPixelFormatType_TwoComponent8  = '2C08',
+	kCVPixelFormatType_30RGBLEPackedWideGamut = 'w30r',
+	kCVPixelFormatType_ARGB2101010LEPacked = 'l10r',
+	kCVPixelFormatType_OneComponent16Half  = 'L00h',
+	kCVPixelFormatType_OneComponent32Float = 'L00f',
+	kCVPixelFormatType_TwoComponent16Half  = '2C0h',
+	kCVPixelFormatType_TwoComponent32Float = '2C0f',
+	kCVPixelFormatType_64RGBAHalf          = 'RGhA',
+	kCVPixelFormatType_128RGBAFloat        = 'RGfA',
+	kCVPixelFormatType_14Bayer_GRBG        = 'grb4',
+	kCVPixelFormatType_14Bayer_RGGB        = 'rgg4',
+	kCVPixelFormatType_14Bayer_BGGR        = 'bgg4',
+	kCVPixelFormatType_14Bayer_GBRG        = 'gbr4',
+	kCVPixelFormatType_DisparityFloat16    = 'hdis',
+	kCVPixelFormatType_DisparityFloat32    = 'fdis',
+	kCVPixelFormatType_DepthFloat16            = 'hdep',
+	kCVPixelFormatType_DepthFloat32            = 'fdep',
+	kCVPixelFormatType_420YpCbCr10BiPlanarVideoRange = 'x420',
+	kCVPixelFormatType_422YpCbCr10BiPlanarVideoRange = 'x422',
+	kCVPixelFormatType_444YpCbCr10BiPlanarVideoRange = 'x444',
+	kCVPixelFormatType_420YpCbCr10BiPlanarFullRange  = 'xf20',
+	kCVPixelFormatType_422YpCbCr10BiPlanarFullRange  = 'xf22',
+	kCVPixelFormatType_444YpCbCr10BiPlanarFullRange  = 'xf44',
+	kCVPixelFormatType_420YpCbCr8VideoRange_8A_TriPlanar   = 'v0a8',
+};
+
+// TODO: This header file is incomplete
+
+#endif