added comment

1 files changed, 2 insertions, 0 deletions

diff --git a/bus.c b/bus.c
index 3875851..38298d0 100644
--- a/bus.c
+++ b/bus.c
@@ -350,6 +350,8 @@ void bus_init()
 
 		int i;
 		for (i = 0; i < SIZEOFARRAY(gpio_pins); i++) {
+			// these pins all happen to default to the correct mode (7)
+			// so no call to pinmux_configurepin is necessary
 			gpio_export(gpio_pins[i]);
 			gpio_changedirection(gpio_pins[i], true);
 		}