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+mga_vid  -  MGA G200/G400 YUV Overlay kernel module
+
+	Author:
+		Aaron Holtzman <aholtzma@ess.engr.uvic.ca>, Oct 1999
+
+	Contributions by:
+		Fredrik Vraalsen <vraalsen@cs.uiuc.edu>
+		Alan Cox <alan@lxorguk.ukuu.org.uk>
+
+                       WARNING  -----  WARNING
+
+This code messes with your video card and your xserver. It will probably
+lock up your box, format your hard drive, and cause your brand new g400 
+MAX to spout 6 inch flames. You have been warned.
+
+                       WARNING  -----  WARNING
+
+What does this code do?
+
+	 mga_vid is a kernel module that utilitizes the Matrox g200/g400 video 
+	 scaler/overlay unit to perform YUV->RGB colorspace conversion and
+	 arbitrary video scaling.
+
+	 mga_vid is also a monster hack.
+
+How does mga_vid work?
+
+	This kernel module sets up the BES (backend scaler) with approriate values
+	based on parameters supplied via ioctl. It also maps a chunk of video
+	memory into userspace via mmap. This memory is stolen from X (which may
+	decide to write to it later). The application can then write image data
+	directly to the frame buffer (if it knows the right padding, etc).
+
+
+How do I know if mga_vid works on my system?
+
+	There are test applications called mga_vid_test_g400 and mga_vid_test_g200.
+	Use the appropriate one for your card. This test code should draw some
+	nice 256x256 images for you if all is working well.