minor cleanup

[tv_i2c_hack] / NOTES

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+TV model: LG RE21FB30RX
+Jungle IC: Philips TDA9361PS/N2/4I0793
+
+Remote control
+--------------
+RC-5 IR protocol, 36khz(?)
+ref: https://www.sbprojects.net/knowledge/ir/rc5.php
+
+  [s1|s2|T|<addr 5b>|<cmd 6b>]
+  \-------- 14 bits ---------/
+
+IR device address: 0
+
+commands:
+  0-9: program
+  0c: on/off
+  0d: mute
+  10: vol +
+  11: vol -
+  20: prog +
+  21: prog -
+  25: OK
+  
+  32: yellow
+  34: blue
+  36: green
+  37: red
+  
+  38: tv/av
+  3b: menu