1 files changed, 7 insertions, 4 deletions
diff --git a/stmhal/usbd_cdc_interface.h b/stmhal/usbd_cdc_interface.h
index c1fa54020..f312682fb 100644
--- a/stmhal/usbd_cdc_interface.h
+++ b/stmhal/usbd_cdc_interface.h
@@ -20,8 +20,8 @@
   *
   *        http://www.st.com/software_license_agreement_liberty_v2
   *
-  * Unless required by applicable law or agreed to in writing, software 
-  * distributed under the License is distributed on an "AS IS" BASIS, 
+  * Unless required by applicable law or agreed to in writing, software
+  * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
@@ -36,6 +36,9 @@ void USBD_CDC_HAL_TIM_PeriodElapsedCallback(void);
 
 int USBD_CDC_IsConnected(void);
 void USBD_CDC_SetInterrupt(int chr, void *data);
-void USBD_CDC_Tx(const char *str, uint32_t len);
+
+int USBD_CDC_Tx(const uint8_t *buf, uint32_t len, uint32_t timeout);
+void USBD_CDC_TxAlways(const uint8_t *buf, uint32_t len);
+
 int USBD_CDC_RxNum(void);
-int USBD_CDC_RxGet(void);
+int USBD_CDC_Rx(uint8_t *buf, uint32_t len, uint32_t timeout);