diff --git a/atusb/fw3/Makefile b/atusb/fw/Makefile
similarity index 100%
rename from atusb/fw3/Makefile
rename to atusb/fw/Makefile
diff --git a/atusb/fw3/README b/atusb/fw/README
similarity index 100%
rename from atusb/fw3/README
rename to atusb/fw/README
diff --git a/atusb/fw3/an/README b/atusb/fw/an/README
similarity index 100%
rename from atusb/fw3/an/README
rename to atusb/fw/an/README
diff --git a/atusb/fw3/an/dec.py b/atusb/fw/an/dec.py
similarity index 100%
rename from atusb/fw3/an/dec.py
rename to atusb/fw/an/dec.py
diff --git a/atusb/fw3/an/get.py b/atusb/fw/an/get.py
similarity index 100%
rename from atusb/fw3/an/get.py
rename to atusb/fw/an/get.py
diff --git a/atusb/fw3/an/plot b/atusb/fw/an/plot
similarity index 100%
rename from atusb/fw3/an/plot
rename to atusb/fw/an/plot
diff --git a/atusb/fw3/atusb.c b/atusb/fw/atusb.c
similarity index 100%
rename from atusb/fw3/atusb.c
rename to atusb/fw/atusb.c
diff --git a/atusb/fw3/board.c b/atusb/fw/board.c
similarity index 100%
rename from atusb/fw3/board.c
rename to atusb/fw/board.c
diff --git a/atusb/fw3/board.h b/atusb/fw/board.h
similarity index 100%
rename from atusb/fw3/board.h
rename to atusb/fw/board.h
diff --git a/atusb/fw3/descr.c b/atusb/fw/descr.c
similarity index 100%
rename from atusb/fw3/descr.c
rename to atusb/fw/descr.c
diff --git a/atusb/fw3/ep0.c b/atusb/fw/ep0.c
similarity index 100%
rename from atusb/fw3/ep0.c
rename to atusb/fw/ep0.c
diff --git a/atusb/fw3/spi.c b/atusb/fw/spi.c
similarity index 100%
rename from atusb/fw3/spi.c
rename to atusb/fw/spi.c
diff --git a/atusb/fw3/spi.h b/atusb/fw/spi.h
similarity index 100%
rename from atusb/fw3/spi.h
rename to atusb/fw/spi.h
diff --git a/atusb/fw3/usb/atu2.c b/atusb/fw/usb/atu2.c
similarity index 100%
rename from atusb/fw3/usb/atu2.c
rename to atusb/fw/usb/atu2.c
diff --git a/atusb/fw3/usb/usb.c b/atusb/fw/usb/usb.c
similarity index 100%
rename from atusb/fw3/usb/usb.c
rename to atusb/fw/usb/usb.c
diff --git a/atusb/fw3/usb/usb.h b/atusb/fw/usb/usb.h
similarity index 100%
rename from atusb/fw3/usb/usb.h
rename to atusb/fw/usb/usb.h
diff --git a/atusb/fw3/version.h b/atusb/fw/version.h
similarity index 100%
rename from atusb/fw3/version.h
rename to atusb/fw/version.h