yarpdev 640x480 with Firewire clock 1

icub@pc104:~/.local/share/yarp/robots/iCubLisboa01/camera$ yarpdev --from camera/dragonfly2_config_left_bayer_640_480.ini 
[DEBUG]*** mUseHardwareTimestamp ON
[DEBUG]Format = 3
------ Camera information ------
Vendor                            :     Point Grey Research
Model                             :     Dragonfly2 DR2-03S2C-EX
Unit                              :     0
Specifications ID                 :     0xa02d
Software revision                 :     0x102
IIDC version code                 :     548
Unit directory offset             :     0x428
Unit dependent directory offset   :     0x440
Commands registers base           :     0xf00000
Unique ID                         :     0x00b09d01009a72fb
Vendor ID                         :     0xb09d
Model ID                          :     0x1
Advanced features found at offset :     0xf01000
1394b mode capable (>=800Mbit/s)  :     Yes
Platform backend                  :     juju
------ Camera platform-specific information ------
Device filename                   :     /dev/fw1

fps=30 newBandOcc=18124800.000000 bpp=1.000000 bytesPerPacket=1280 maxBytesPerPacket=2560

[INFO]Feature 426 not supported by this camera model.
[INFO]Feature 430 not supported by this camera model.
[INFO]Feature 432 not supported by this camera model.
[INFO]Feature 435 not supported by this camera model.
[INFO]Feature 436 not supported by this camera model.
[INFO]Feature 437 not supported by this camera model.
[INFO]created device <dragonfly2raw>. See C++ class yarp::dev::DragonflyDeviceDriver2Raw for documentation.
yarp: Port /icub/cam/left active at tcp://10.10.1.50:10011
yarp: Setting framerate to: 30[Hz] (thread period 33[ms])

[INFO]created wrapper <grabber>. See C++ class yarp::dev::ServerFrameGrabber for documentation.
yarp: Port /icub/cam/left/quit active at tcp://10.10.1.50:10013
[INFO]device active...
[DEBUG]*** in Capture function, entered if(mUseHardwareTimestamp)...
[DEBUG]*** trying ntohl(*((uint32_t*)m_pFrame->timestamp))...
Segmentation fault