* commit 'a4f7d800':
  Converted python2 code to python3

* commit 'd7898815':
  Select either external(FTSW) or onboard clock source in program_plls_commandline function, which is called by initialize_pcie40.py

Select either external(FTSW) or onboard clock source in program_plls_commandline function, which is called by initialize_pcie40.py

* commit 'eb22ca85':
  Feature: add functions to access fee hw/fw infos

* commit '8981ab48':
  Remove a print() for debugging.
  Revert "Add program_plls_commandline() so that one can program PLLs by"
  Make another script which contains program_plls_commandline(dev) only.
  Add program_plls_commandline() so that one can program PLLs by $ python -c "import pll_status_small; pll_status_small.program_plls_commandline(0)"

This reverts commit 16f7a06f.

$ python -c "import pll_status_small; pll_status_small.program_plls_commandline(0)"

* commit '22d6242d':
  Fix for the memory leak which leads to eventual crash of the linux kernel

Merge pull request #26 in BIDU/software from feature/change_log_message_when_no_device_detected to master

* commit 'b340d4f3':
  Change an error message when No device is detected.

* commit '12e97112':
  exit if invaild ch No. is given

* commit '0a717aa8':
  add write access to pcie40 register in pcie40_regconfig

* commit '9a1ab6a0':
  fix bug to output nevent with 32bit