This fixes the overflow mathmatic in the fifo

2021-02-16 23:08:08 -05:00
parent 09868434cd
commit b7ec66e33a
3 changed files with 4 additions and 2 deletions
--- a/src/common/tusb_fifo.h
+++ b/src/common/tusb_fifo.h
@@ -86,7 +86,7 @@ typedef struct
        .item_size              = sizeof(_type),                        \
        .overwritable           = _overwritable,                        \
        .max_pointer_idx        = 2*_depth-1,                           \
-        .non_used_index_space   = 0xFFFF - 2*_depth-1,                  \
+        .non_used_index_space   = UINT16_MAX - (2*_depth-1),                  \
    }

 bool tu_fifo_set_overwritable(tu_fifo_t *f, bool overwritable);