-usb_packet_t *usb_rx(uint32_t endpoint);
-uint32_t usb_tx_byte_count(uint32_t endpoint);
-uint32_t usb_tx_packet_count(uint32_t endpoint);
-void usb_tx(uint32_t endpoint, usb_packet_t *packet);
-void usb_tx_isr(uint32_t endpoint, usb_packet_t *packet);
+void usb_tx( uint32_t endpoint, usb_packet_t *packet );
+void usb_tx_isr( uint32_t endpoint, usb_packet_t *packet );
+
+uint32_t usb_tx_byte_count( uint32_t endpoint );
+uint32_t usb_tx_packet_count( uint32_t endpoint );
+
+usb_packet_t *usb_rx( uint32_t endpoint );