diff --git a/app/src/split/wired/central.c b/app/src/split/wired/central.c
index beee09def02..5346f000c46 100644
--- a/app/src/split/wired/central.c
+++ b/app/src/split/wired/central.c
@@ -103,6 +103,14 @@ static inline int can_tx(void) { return 0; }
 
 #endif
 
+#if IS_ENABLED(CONFIG_ZMK_SPLIT_WIRED_UART_MODE_POLLING)
+
+static void send_pending_tx_work_cb(struct k_work *work);
+
+static K_WORK_DEFINE(wired_central_tx_work, send_pending_tx_work_cb);
+
+#endif
+
 static void begin_tx(void) {
 #if IS_ENABLED(CONFIG_ZMK_SPLIT_WIRED_UART_MODE_INTERRUPT)
     uart_irq_tx_enable(uart);
@@ -233,11 +241,10 @@ static void send_pending_tx_work_cb(struct k_work *work) {
 }
 
 static void read_timer_cb(struct k_timer *_timer) {
-    zmk_split_wired_poll_in(&rx_buf, uart, &publish_events, sizeof(struct event_envelope));
+    zmk_split_wired_poll_in(&rx_buf, uart, &publish_events, NULL);
     // Check if we found any bytes, read some, or read all the bytes in the RX
 }
 
-static K_WORK_DEFINE(wired_central_tx_work, send_pending_tx_work_cb);
 static K_TIMER_DEFINE(wired_central_read_timer, read_timer_cb, NULL);
 
 #endif
diff --git a/app/src/split/wired/peripheral.c b/app/src/split/wired/peripheral.c
index d468da9eedc..aa2a110b0f9 100644
--- a/app/src/split/wired/peripheral.c
+++ b/app/src/split/wired/peripheral.c
@@ -135,8 +135,7 @@ static void send_pending_tx_work_cb(struct k_work *work) {
 static K_WORK_DEFINE(send_pending_tx, send_pending_tx_work_cb);
 
 static void wired_peripheral_read_tick_cb(struct k_timer *timer) {
-    zmk_split_wired_poll_in(&chosen_rx_buf, uart, &publish_commands,
-                            sizeof(struct command_envelope));
+    zmk_split_wired_poll_in(&chosen_rx_buf, uart, NULL, process_tx_cb);
 }
 
 static K_TIMER_DEFINE(wired_peripheral_read_timer, wired_peripheral_read_tick_cb, NULL);
diff --git a/app/src/split/wired/wired.c b/app/src/split/wired/wired.c
index 94e2d44c52f..147b3341523 100644
--- a/app/src/split/wired/wired.c
+++ b/app/src/split/wired/wired.c
@@ -30,8 +30,7 @@ void zmk_split_wired_poll_out(struct ring_buf *tx_buf, const struct device *uart
 
 int zmk_split_wired_poll_in(struct ring_buf *rx_buf, const struct device *uart,
                             struct k_work *process_data_work,
-                            zmk_split_wired_process_tx_callback_t process_data_cb,
-                            size_t envelope_size) {
+                            zmk_split_wired_process_tx_callback_t process_data_cb) {
     uint8_t *buf;
     uint32_t read = 0;
     uint32_t claim_len = ring_buf_put_claim(rx_buf, &buf, ring_buf_space_get(rx_buf));
@@ -52,7 +51,7 @@ int zmk_split_wired_poll_in(struct ring_buf *rx_buf, const struct device *uart,
 
     ring_buf_put_finish(rx_buf, read);
 
-    if (ring_buf_size_get(rx_buf) >= envelope_size) {
+    if (ring_buf_size_get(rx_buf) >= 0) {
         if (process_data_work) {
             k_work_submit(process_data_work);
         } else if (process_data_cb) {
diff --git a/app/src/split/wired/wired.h b/app/src/split/wired/wired.h
index d018a1a3534..ab39eb27f11 100644
--- a/app/src/split/wired/wired.h
+++ b/app/src/split/wired/wired.h
@@ -52,8 +52,7 @@ void zmk_split_wired_poll_out(struct ring_buf *tx_buf, const struct device *uart
 
 int zmk_split_wired_poll_in(struct ring_buf *rx_buf, const struct device *uart,
                             struct k_work *process_data_work,
-                            zmk_split_wired_process_tx_callback_t process_data_cb,
-                            size_t envelope_size);
+                            zmk_split_wired_process_tx_callback_t process_data_cb);
 
 #endif