efi_name_to_guid3
Efi non volatile variable support
Part of efi_append_variable(3).
Usage
int
int
int
int
int
int
int
int
int
int
int
int
int
Overview
The libefivar library implements access to EFI Variables via the EFI Runtime Services. All char * strings are converted to 16-bit UTF strings before passing them to EFI.
efi_variables_supported() returns non-zero if the current machine supports setting of EFI firmware variables and the kernel support for doing so is present. Otherwise zero is returned.
efi_del_variable() deletes the EFI variable selected by guid and name.
The following functions have not been implemented yet:
-
efi_append_variable() -
efi_get_next_variable_name() -
efi_get_variable() -
efi_get_variable_attributes() -
efi_get_variable_size() -
efi_guid_to_name() -
efi_guid_to_str() -
efi_guid_to_symbol() -
efi_name_to_guid() -
efi_set_variable() -
efi_str_to_guid()
History
- FreeBSD 16.0-CURRENT (2026-10-27) to FreeBSD 13.3-RELEASE: the text shown here
- FreeBSD 13.2-RELEASE to FreeBSD 13.0-RELEASE
- FreeBSD 12.4-RELEASE
- FreeBSD 12.3-RELEASE
- FreeBSD 12.2-RELEASE
- FreeBSD 12.1-RELEASE
- FreeBSD 12.0-RELEASE
- FreeBSD 11.4-RELEASE
- FreeBSD 11.3-RELEASE
- FreeBSD 11.2-RELEASE
- FreeBSD 11.1-RELEASE