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Chromebooks and the sandbox use a crosswire keyboard with function keys FN1 - FN10. These keys are needed when running UEFI applications like GRUB or the UEFI SCT. Add support for these keys when translating from key codes to ECMA-48 (or withdrawn ANSI 3.64) escape sequences. All escape sequences start with 0x1b. So we should not repeat this byte in the kbd_to_ansi364 table. For testing use: sandbox_defconfig + CONFIG_EFI_SELFTEST=y $ ./u-boot -D -l => setenv efi_selftest extended text input => bootefi selftest Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de> Reviewed-by: Simon Glass <sjg@chromium.org>