diff --git a/drivers/slipdev/Makefile.dep b/drivers/slipdev/Makefile.dep
index ba02c7c50e..a91b6e3e2a 100644
--- a/drivers/slipdev/Makefile.dep
+++ b/drivers/slipdev/Makefile.dep
@@ -1,6 +1,6 @@
 USEMODULE += chunked_ringbuffer
 USEMODULE += eui_provider
-USEMODULE += netdev_legacy_api
+USEMODULE += netdev_new_api
 USEMODULE += netdev_register
 FEATURES_REQUIRED += periph_uart
 
diff --git a/drivers/slipdev/slipdev.c b/drivers/slipdev/slipdev.c
index ff6880a5b6..a2ef698b4b 100644
--- a/drivers/slipdev/slipdev.c
+++ b/drivers/slipdev/slipdev.c
@@ -234,10 +234,6 @@ static int _send(netdev_t *netdev, const iolist_t *iolist)
     slipdev_write_byte(dev->config.uart, SLIPDEV_END);
     slipdev_unlock();
 
-    if (netdev->event_callback) {
-        netdev->event_callback(netdev, NETDEV_EVENT_TX_COMPLETE);
-    }
-
     return bytes;
 }
 
@@ -327,9 +323,6 @@ static int _get(netdev_t *netdev, netopt_t opt, void *value, size_t max_len)
             assert(max_len == sizeof(uint16_t));
             *((uint16_t *)value) = NETDEV_TYPE_SLIP;
             return sizeof(uint16_t);
-        case NETOPT_TX_END_IRQ:
-            *((netopt_enable_t *)value) = NETOPT_ENABLE;
-            return sizeof(netopt_enable_t);
 #if IS_USED(MODULE_SLIPDEV_L2ADDR)
         case NETOPT_ADDRESS_LONG:
             assert(max_len == sizeof(eui64_t));
@@ -341,12 +334,20 @@ static int _get(netdev_t *netdev, netopt_t opt, void *value, size_t max_len)
     }
 }
 
+static int _confirm_send(netdev_t *netdev, void *info)
+{
+    (void)netdev;
+    (void)info;
+    return -EOPNOTSUPP;
+}
+
 static const netdev_driver_t slip_driver = {
     .send = _send,
     .recv = _recv,
     .init = _init,
     .isr = _isr,
     .get = _get,
+    .confirm_send = _confirm_send,
 #if IS_USED(MODULE_SLIPDEV_STDIO)
     .set = netdev_set_notsup,
 #else