earlycon Directory Reference

Files
	earlycon.c
	x86: the early console, where printk() writes before the kernel's terminals exist.
	fb.c
	x86: the early console on the boot loader's framebuffer.
	font.h
	8x16 font, the characters of code page 437 in order: generated by mkfont.py from unscii-16 by Viznut (public domain, https://viznut.fi/unscii/)
	uart.c
	x86: the early console on the first serial port (COM1, port 0x3F8), polled: each character waits until the UART can take it.
	vga.c
	x86: the early console in VGA text mode, written straight into the text buffer at 0xB8000 (through the kernel's mapping of low memory, VMA(), which i386 and x86_64 both have).