stm32/usbd_cdc_interface: Make CDC TX/RX buffer sizes configurable.
******************************************************************************
*/
+#ifndef USBD_CDC_RX_DATA_SIZE
#define USBD_CDC_RX_DATA_SIZE (1024) // this must be 2 or greater, and a power of 2
+#endif
+#ifndef USBD_CDC_TX_DATA_SIZE
#define USBD_CDC_TX_DATA_SIZE (1024) // I think this can be any value (was 2048)
+#endif
// Values for connect_state
#define USBD_CDC_CONNECT_STATE_DISCONNECTED (0)
