Supports all 4D Systems Display Graphics Modules with serial platform PmmC. Model is autodetected.

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Parameters

Driver	'D4D'
Port	serial device the display is attached to (e.g. '/dev/ttyS0')
Speed	up to 230400.
Mode	Text mode: 0 (fast); Graphics mode: 8: 8 bpp; 16: 16 bpp
Font	'6x8', '8x8', '8x12' or '12x16' for fonts in ROM or string with number of sector on µSD card
Contrast	initial contrast value, 0..15 (useful range depends on the display)
Icons	Number of user-defined chars reserved for Icons (default: 0)
foreground	Foreground color (possible in text mode, too)
background	Background color (possible in text mode, too)
basecolor	Base color. '000000' default and recommended for OLEDs.
NoPowerCycle	1: Don't turn power on/off between starting/stopping LCD4Linux

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Font on µSD card

1st sector:

Offset	Description
0	Width
1	Height

From 2nd sector: Images of glyphs of ASCII code 0 to 255 taken with @C command. Generator coming soon.

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ToDo

- Make optimized drv_D4D_bar_draw() optional