diff --git a/epicardium/epicardium.h b/epicardium/epicardium.h
index beeb2537d0ae8455f05079c2a57af64e168377bc..b47f811e58b8380781ff3fd3799f9a9451429d04 100644
--- a/epicardium/epicardium.h
+++ b/epicardium/epicardium.h
@@ -279,17 +279,19 @@ struct disp_framebuffer {
    * That is, for every (x, y) coordinate, there are two uint8_ts
    * storing 16 bits of pixel data.
    *
+   * TODO(q3k): document (x, y) in relation to chirality
+   *
    * **Example: fill framebuffer with red**:
    *
    * .. code-block:: cpp
    *
-   * 	struct disp_framebuffer **fb;
-   * 	epic_disp_framebuffer(fb);
+   * 	struct disp_framebuffer *fb;
+   * 	epic_disp_framebuffer(&fb);
    * 	uint16_t red = 0b1111100000000000;
    * 	for (int y = 0; y < DISP_HEIGHT; y++) {
    * 		for (int x = 0; x < DISP_WIDTH; x++) {
-   * 			(*fb)->fb[y][x][0] = red >> 8;
-   * 			(*fb)->fb[y][x][1] = red & 0xFF;
+   * 			fb->fb[y][x][0] = red >> 8;
+   * 			fb->fb[y][x][1] = red & 0xFF;
    * 		}
    * 	}
    * 	epic_disp_update();