Method

FwupdPluginUefiDeviceget_efivar_bytes

since: 2.0.5

Declaration [src] 

GBytes*
fu_uefi_device_get_efivar_bytes (
  FuUefiDevice* self,
  const gchar* guid,
  const gchar* name,
  FuEfiVariableAttrs* attr,
  GError** error
)

Description [src]

Gets the data from a UEFI variable in NVRAM, emulating if required.

Available since: 2.0.5

Parameters

guid

Type: const gchar*

Globally unique identifier.

The data is owned by the caller of the method.
The value is a NUL terminated UTF-8 string.
name

Type: const gchar*

Variable name.

The data is owned by the caller of the method.
The value is a NUL terminated UTF-8 string.
attr

Type: FuEfiVariableAttrs

FuEfiVariableAttrs, e.g. FU_EFI_VARIABLE_ATTR_NON_VOLATILE.

The argument will be set by the function.
The argument can be set to NULL by the method.
The caller of the method takes ownership of the returned data, and is responsible for freeing it.
error

Type: GError **

The return location for a recoverable error.

The argument can be NULL.
If the return location is not NULL, then you must initialize it to a NULL GError*.
The argument will be left initialized to NULL by the method if there are no errors.
In case of error, the argument will be set to a newly allocated GError; the caller will take ownership of the data, and be responsible for freeing it.

Return value

Type: GBytes

A GBytes, or NULL on error.

The caller of the method takes ownership of the returned data, and is responsible for freeing it.