Function init 

pub unsafe fn init(
    fb_ptr: *mut u8,
    width: usize,
    height: usize,
    stride: usize,
    bpp: usize,
    format: FbPixelFormat,
)

Initialize the framebuffer console with the given parameters.

Must be called after the framebuffer is available (after UEFI boot on x86_64, or after ramfb init on AArch64/RISC-V).

Safety

fb_ptr must point to a valid framebuffer of at least stride * height bytes, mapped for the kernel’s lifetime.