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-rw-r--r--digital/avr/modules/path/path.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/digital/avr/modules/path/path.h b/digital/avr/modules/path/path.h
index 8255bf65..6f41b1d0 100644
--- a/digital/avr/modules/path/path.h
+++ b/digital/avr/modules/path/path.h
@@ -46,7 +46,7 @@ void
path_endpoints (int16_t sx, int16_t sy, int16_t dx, int16_t dy);
/** Set up an obstacle at given position with the given radius and validity
- * period. */
+ * period, use 0xffff for infinite validity. */
void
path_obstacle (uint8_t i, int16_t x, int16_t y, uint16_t r, uint16_t valid);