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-rw-r--r--quantum/matrix_common.c22
-rw-r--r--quantum/split_common/split_util.h1
2 files changed, 10 insertions, 13 deletions
diff --git a/quantum/matrix_common.c b/quantum/matrix_common.c
index 79f77421e1..5fdc9186fa 100644
--- a/quantum/matrix_common.c
+++ b/quantum/matrix_common.c
@@ -95,24 +95,22 @@ uint8_t matrix_key_count(void) {
bool matrix_post_scan(void) {
bool changed = false;
if (is_keyboard_master()) {
+ static bool last_connected = false;
matrix_row_t slave_matrix[ROWS_PER_HAND] = {0};
if (transport_master_if_connected(matrix + thisHand, slave_matrix)) {
- for (int i = 0; i < ROWS_PER_HAND; ++i) {
- if (matrix[thatHand + i] != slave_matrix[i]) {
- matrix[thatHand + i] = slave_matrix[i];
- changed = true;
- }
- }
- } else {
- // reset other half if disconnected
- for (int i = 0; i < ROWS_PER_HAND; ++i) {
- matrix[thatHand + i] = 0;
- slave_matrix[i] = 0;
- }
+ changed = memcmp(matrix + thatHand, slave_matrix, sizeof(slave_matrix)) != 0;
+ last_connected = true;
+ } else if (last_connected) {
+ // reset other half when disconnected
+ memset(slave_matrix, 0, sizeof(slave_matrix));
changed = true;
+
+ last_connected = false;
}
+ if (changed) memcpy(matrix + thatHand, slave_matrix, sizeof(slave_matrix));
+
matrix_scan_quantum();
} else {
transport_slave(matrix + thatHand, matrix + thisHand);
diff --git a/quantum/split_common/split_util.h b/quantum/split_common/split_util.h
index ef72043bb7..c7eabea233 100644
--- a/quantum/split_common/split_util.h
+++ b/quantum/split_common/split_util.h
@@ -2,7 +2,6 @@
#include <stdbool.h>
#include <stdint.h>
-#include <stdio.h>
#include <stdlib.h>
#include "matrix.h"