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Feedback on Ctrl key in UEFI mode for iPXE
2018-09-27, 21:41
Post: #1
Feedback on Ctrl key in UEFI mode for iPXE
Feedback from a BIOS vendor, if it's useful:

The root cause of CTRL not working in shell is because iPXE used ReadKeyStroke to read the key but not ReadKeyStrokeEx.
And iPXE can works on EDKII base project is because EDKII Translate the CTRL+<key> characters in ReadKeyStroke.

UEFI specification does not define such conversion requirements, so the right way is all applications should use ReadKeyStrokeEx but not translate key combinations in ReadKeyStroke.
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2018-09-28, 06:11
Post: #2
RE: Feedback on Ctrl key in UEFI mode for iPXE
(2018-09-27 21:41)brett Wrote:  The root cause of CTRL not working in shell is because iPXE used ReadKeyStroke to read the key but not ReadKeyStrokeEx.
And iPXE can works on EDKII base project is because EDKII Translate the CTRL+<key> characters in ReadKeyStroke.

UEFI specification does not define such conversion requirements, so the right way is all applications should use ReadKeyStrokeEx but not translate key combinations in ReadKeyStroke.

Thanks however ...
Feedback to BIOS vendors, if it's useful: Don't create broken real world implementations

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Did you include relevant ipxe.org error urls?
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