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A comment on Let’s write a Kernel with keyboard and screen support (2014).

Re:Let’s write a Kernel with keyboard and screen support (2014) by teddyh on Wednesday September 19, 2018 @07:44AM (#18023466)
I may be wrong, but if you assume a non-ancient x86 platform with EFI BIOS, don’t you get all this for free from drivers included in EFI?
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Re:Let’s write a Kernel with keyboard and screen support (2014) by zaarn on Wednesday September 19, 2018 @09:37AM (#18024064)
Not quite.

EFI will kill your program if it runs too long unless it disables a lot of the drives by exiting the boot environment.

Additionally, a lot of the EFI structures aren't intuitive or straightforward since they cover a lot of functionality, you'd still write a lot of code, probably more than the non-EFI variant.

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