bfgminer and freebsd problem detect usb block erupter

Hi all,
I'm newbie here so i can't post to the appropriate thread Sad

I have a problem with my config.

I'm running Under FreeBSD 8.x

When i run "./configure" all is right i have this output:

Quote

------------------------------------------------------------------------
bfgminer 3.8.0 configuration options summary
------------------------------------------------------------------------

  CFLAGS...............: -I/usr/local/include/ncurses -I/usr/local/include -pthread -g -O2 -I/usr/local/include -pthread -Ilibblkmaker
  LDFLAGS..............: -pthread -Llibblkmaker/.libs -Wl,-rpath,\$$ORIGIN/libblkmaker/.libs,-zorigin -lpthread -L/usr/local/lib -lcurl -L/usr/local/lib -ljansson -L/usr/local/lib -rpath /usr/local/lib -lncurses -ltinfo -lm -lusb -lblkmaker_jansson-0.1 -lblkmaker-0.1
  Installatio[Suspicious link removed]efix..: /usr/local

  Enabled..Drivers.....: avalon bifury bigpic bitforce bitfury_gpio cairnsmore erupter hashbuster2 icarus klondike littlefury modminer proxy proxy:getwork proxy:stratum twinfury x6500 ztex
  Disabled.Drivers.....: bfsb cpu hashbuster knc metabank nanofury opencl
   To enable nanofury, install hidapi
   To enable hashbuster, install hidapi
  Enabled..Algorithms..: SHA256d
  Disabled.Algorithms..: scrypt
  Enabled..Options.....: ncurses5
  Disabled.Options.....:

When i run "make" all is right too, i have this output:

Quote

cd libblkmaker && make
  CCLD bfgminer
  CC bitforce-firmware-flash.o
  CCLD bitforce-firmware-flash
  CC api-example.o
  CCLD bfgminer-rpc

but when i launch bfgminer, it didn't detect my usb erupter block

When i connect the usb erupter block i have this message:

Quote

Dec 4 12:01:47 xxxxx kernel: ugen5.2: <Silicon Labs> at usbus5
Dec 4 12:01:47 xxxxx kernel: uslcom0: <CP2102 USB to UART Bridge Controller> on usbus5

and in the /dev i have this:

Quote

cuaU0
cuaU0.init
cuaU0.lock
ttyU0
ttyU0.init
ttyU0.lock

Anyone can help me??
When bfgminer is launch if i push "m" and "+", if i put "erupter:/dev/ttyU0" or "erupter:/dev/cuaU0" i have this message:

Quote

(no devices)
[Plus] Add device(s) [Enter] Close device manager
No new devices found

Erupter works fine on Windows.

Thanks to your help