# lv_uefi_context.h (/api/drivers/uefi/lv_uefi_context_h)
Functions [#functions]
lv_uefi_init [#lv_uefi_init]
Initialize the UEFI cache variables.
```c title=" " lineNumbers=1
void lv_uefi_init(EFI_HANDLE image_handle, EFI_SYSTEM_TABLE *system_table)
```
Parameters
| Name | Type | Description |
| -------------- | -------------------- | ------------------------------- |
| `image_handle` | `EFI_HANDLE` | The handle of the current image |
| `system_table` | `EFI_SYSTEM_TABLE *` | Pointer to the system table |
**Remark:** This has to be called before .
lv_uefi_platform_init [#lv_uefi_platform_init]
Initialize the LVGL UEFI backend.
```c title=" " lineNumbers=1
void lv_uefi_platform_init(void)
```
**Remark:** This is a private API which is used for LVGL UEFI backend implementation. LVGL users shouldn't use that because the LVGL has already used it in lv\_init.
lv_uefi_platform_deinit [#lv_uefi_platform_deinit]
Cleanup the LVGL UEFI backend.
```c title=" " lineNumbers=1
void lv_uefi_platform_deinit(void)
```
**Remark:** This is a private API which is used for LVGL UEFI backend implementation. LVGL users shouldn't use that because the LVGL has already used it in lv\_deinit.
Dependencies [#dependencies]