Added a README

diff --git a/README b/README
new file mode 100644 (file)
index 0000000..0f894a5
--- /dev/null
+++ b/README
@@ -0,0 +1,49 @@
+================================================================================
+
+                            A Parser for VESA EDID
+
+                   (c) 2011--2015 Martin Mares <mj@ucw.cz>
+
+       You can use and distribute this program under the terms of GPLv2.
+
+================================================================================
+
+This is a tool for parsing VESA Extended Display ID data (EDID) as sent by
+most monitors. It eats binary EDID data and outputs a textual interpretation.
+The reader is expected to have at least basic knowledge of the EDID specs.
+
+Currently, we parse all versions up to EDID 1.4, including differences in
+semantics between versions.
+
+The following descriptors are known:
+
+  0xff Serial number           fully decoded
+  0xfe Comment                 fully decoded
+  0xfd Range limits            fully decoded
+  0xfc Product name            fully decoded
+  0xfb Color points            not parsed
+  0xfa More standard timings   not parsed
+  0xf9 Color management        not parsed
+  0xf8 CVT-3                   not parsed
+  0xf7 Established timings 3   not parsed
+
+The following extensions are known:
+
+  0x02 CEA 861                 fully decoded (including HDMI data)
+  0x10 Video timing block      not parsed
+  0x40 Display information     not parsed
+  0x50 Localized strings       not parsed
+  0x60 Digi. pkt. video link   not parsed
+  0xf0 Block map               fully decoded
+
+The main reason for not parsing a descriptor/extension is that I lack
+any examples of such data. If you have a monitor which sends them, please
+let me know.
+
+The program has been tested on Linux, but it should run on an arbitrary POSIX
+system with a C99 compiler.
+
+All bug reports and suggestions are welcome, especially when accompanied by
+patches :)
+
+                               Have fun