+ *
+ * NOTES ON FLAGS (cursor->set):
+ *
+ * FB_CUR_SETIMAGE - the cursor image has changed (cursor->image.data)
+ * FB_CUR_SETPOS - the cursor position has changed (cursor->image.dx|dy)
+ * FB_CUR_SETHOT - the cursor hot spot has changed (cursor->hot.dx|dy)
+ * FB_CUR_SETCMAP - the cursor colors has changed (cursor->fg_color|bg_color)
+ * FB_CUR_SETSHAPE - the cursor bitmask has changed (cursor->mask)
+ * FB_CUR_SETSIZE - the cursor size has changed (cursor->width|height)
+ * FB_CUR_SETALL - everything has changed
+ *
+ * NOTES ON ROPs (cursor->rop, Raster Operation)
+ *
+ * ROP_XOR - cursor->image.data XOR cursor->mask
+ * ROP_COPY - curosr->image.data AND cursor->mask
+ *
+ * OTHER NOTES:
+ *
+ * - fbcon only supports a 2-color cursor (cursor->image.depth = 1)
+ * - The fb_cursor structure, @cursor, _will_ always contain valid
+ * fields, whether any particular bitfields in cursor->set is set
+ * or not.