diff --git a/examples/aarch64/src/main.rs b/examples/aarch64/src/main.rs
index 7c0ca64a..9b9a98c0 100644
--- a/examples/aarch64/src/main.rs
+++ b/examples/aarch64/src/main.rs
@@ -203,7 +203,7 @@ fn virtio_net<T: Transport>(transport: T) {
         pkt_len,
         &buf[hdr_len..hdr_len + pkt_len]
     );
-    net.transmit_wait(&buf[..hdr_len + pkt_len])
+    net.send(&buf[..hdr_len + pkt_len])
         .expect("failed to send");
     info!("virtio-net test finished");
 }
diff --git a/examples/riscv/src/main.rs b/examples/riscv/src/main.rs
index 8e66ea2f..2e85dcde 100644
--- a/examples/riscv/src/main.rs
+++ b/examples/riscv/src/main.rs
@@ -159,7 +159,7 @@ fn virtio_net<T: Transport>(transport: T) {
             pkt_len,
             &buf[hdr_len..hdr_len + pkt_len]
         );
-        net.transmit_wait(&buf[..hdr_len + pkt_len])
+        net.send(&buf[..hdr_len + pkt_len])
             .expect("failed to send");
         info!("virtio-net test finished");
     }
diff --git a/examples/riscv/src/tcp.rs b/examples/riscv/src/tcp.rs
index 69c6e2b8..5f6623c3 100644
--- a/examples/riscv/src/tcp.rs
+++ b/examples/riscv/src/tcp.rs
@@ -93,7 +93,7 @@ impl<T: Transport> TxToken for VirtioTxToken<T> {
         let mut tx_buf = dev.new_tx_buffer(len);
         let result = f(tx_buf.packet_mut());
         trace!("SEND {} bytes: {:02X?}", len, tx_buf.packet());
-        dev.transmit_wait(tx_buf).unwrap();
+        dev.send(tx_buf).unwrap();
         result
     }
 }
diff --git a/examples/x86_64/src/main.rs b/examples/x86_64/src/main.rs
index 5c79b20f..b307c133 100644
--- a/examples/x86_64/src/main.rs
+++ b/examples/x86_64/src/main.rs
@@ -130,7 +130,7 @@ fn virtio_net<T: Transport>(transport: T) {
             pkt_len,
             &buf[hdr_len..hdr_len + pkt_len]
         );
-        net.transmit_wait(&buf[..hdr_len + pkt_len])
+        net.send(&buf[..hdr_len + pkt_len])
             .expect("failed to send");
         info!("virtio-net test finished");
     }
diff --git a/src/device/net/dev.rs b/src/device/net/dev.rs
index d3c3119d..5dfba600 100644
--- a/src/device/net/dev.rs
+++ b/src/device/net/dev.rs
@@ -117,12 +117,6 @@ impl<H: Hal, T: Transport, const QUEUE_SIZE: usize> VirtIONet<H, T, QUEUE_SIZE>
         TxBuffer(vec![0; buf_len])
     }
 
-    /// Sends a [`TxBuffer`] to the network, and blocks until the request
-    /// completed. Returns number of bytes transmitted.
-    pub fn transmit_wait(&mut self, tx_buf: TxBuffer) -> Result<usize> {
-        self.inner.transmit_wait(tx_buf.packet())
-    }
-
     /// Sends a [`TxBuffer`] to the network, and blocks until the request
     /// completed.
     pub fn send(&mut self, tx_buf: TxBuffer) -> Result {
diff --git a/src/device/net/dev_raw.rs b/src/device/net/dev_raw.rs
index 39a84529..20b47d17 100644
--- a/src/device/net/dev_raw.rs
+++ b/src/device/net/dev_raw.rs
@@ -241,21 +241,6 @@ impl<H: Hal, T: Transport, const QUEUE_SIZE: usize> VirtIONetRaw<H, T, QUEUE_SIZ
         Ok((NET_HDR_SIZE, packet_len))
     }
 
-    /// Transmits a packet to the network, and blocks until the request
-    /// completed. Returns number of bytes transmitted.
-    ///
-    /// The caller needs to fill the `tx_buf` with a header by calling
-    /// [`fill_buffer_header`] before transmission.
-    ///
-    /// [`fill_buffer_header`]: Self::fill_buffer_header
-    pub fn transmit_wait(&mut self, tx_buf: &[u8]) -> Result<usize> {
-        let token = unsafe { self.transmit_begin(tx_buf)? };
-        while self.poll_transmit().is_none() {
-            core::hint::spin_loop();
-        }
-        unsafe { self.transmit_complete(token, tx_buf) }
-    }
-
     /// Sends a packet to the network, and blocks until the request
     /// completed.
     pub fn send(&mut self, tx_buf: &[u8]) -> Result {