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Diffstat (limited to 'shared-module/displayio/FourWire.c')
-rw-r--r--shared-module/displayio/FourWire.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/shared-module/displayio/FourWire.c b/shared-module/displayio/FourWire.c
index 8c56d7ab6..06f8a84e3 100644
--- a/shared-module/displayio/FourWire.c
+++ b/shared-module/displayio/FourWire.c
@@ -113,7 +113,8 @@ bool common_hal_displayio_fourwire_begin_transaction(mp_obj_t obj) {
return true;
}
-void common_hal_displayio_fourwire_send(mp_obj_t obj, display_byte_type_t data_type, display_chip_select_behavior_t chip_select, uint8_t *data, uint32_t data_length) {
+void common_hal_displayio_fourwire_send(mp_obj_t obj, display_byte_type_t data_type,
+ display_chip_select_behavior_t chip_select, const uint8_t *data, uint32_t data_length) {
displayio_fourwire_obj_t* self = MP_OBJ_TO_PTR(obj);
common_hal_digitalio_digitalinout_set_value(&self->command, data_type == DISPLAY_DATA);
if (chip_select == CHIP_SELECT_TOGGLE_EVERY_BYTE) {