diff --git a/src/usb/usb.h b/src/usb/usb.h
index 14883c6..818972f 100644
--- a/src/usb/usb.h
+++ b/src/usb/usb.h
@@ -73,7 +73,7 @@ extern uint8_t card_locked_itf;
 #ifdef USB_ITF_HID
 extern int driver_process_usb_packet_hid(uint16_t rx_read);
 extern void driver_exec_finished_hid(uint16_t size_next);
-extern void driver_exec_finished_cont_hid(uint16_t size_next, uint16_t offset);
+extern void driver_exec_finished_cont_hid(uint8_t itf, uint16_t size_next, uint16_t offset);
 extern void driver_exec_timeout_hid();
 extern bool driver_mounted_hid();
 extern uint8_t *driver_prepare_response_hid();
@@ -117,10 +117,13 @@ extern uint8_t *usb_get_rx(uint8_t itf);
 extern uint8_t *usb_get_tx(uint8_t itf);
 extern uint32_t usb_write_offset(uint8_t itf, uint16_t len, uint16_t offset);
 extern void usb_clear_rx(uint8_t itf);
+extern uint16_t usb_more_rx(uint8_t itf, uint16_t len);
+extern uint16_t usb_get_r_offset(uint8_t itf);
 extern uint16_t finished_data_size;
 extern void usb_set_timeout_counter(uint8_t itf, uint32_t v);
 extern void card_init_core1();
 extern uint32_t usb_write_flush(uint8_t itf);
 extern uint16_t usb_read_available(uint8_t itf);
+extern uint16_t usb_write_available(uint8_t itf);
 
 #endif