instrument-control >> Low level I/O functions
Serial
  serial
  @octave_serial/fopen
  @octave_serial/fclose
  @octave_serial/get
  @octave_serial/set
  srl_read
  srl_write
  @octave_serial/srl_baudrate
  @octave_serial/srl_bytesize
  @octave_serial/srl_flush
  @octave_serial/srl_parity
  @octave_serial/srl_stopbits
  @octave_serial/srl_timeout
  @octave_serial/srl_close
I2C
  i2c
  @octave_i2c/fopen
  @octave_i2c/fclose
  i2c_addr
  i2c_read
  i2c_write
  i2c_close
Parallel
  parallel
  pp_datadir
  pp_data
  pp_ctrl
  pp_stat
  pp_close
TCP
  tcp
  @octave_tcpip/fopen
  @octave_tcpip/fclose
  tcp_read
  tcp_write
  tcp_timeout
  tcp_close
USBTMC
  usbtmc
  @octave_usbtmc/fopen
  @octave_usbtmc/fclose
  usbtmc_read
  usbtmc_write
  usbtmc_close
GPIB
  gpib
  gpib_read
  gpib_write
  gpib_timeout
  gpib_close
  @octave_gpib/fopen
  @octave_gpib/fclose
  @octave_gpib/fread
  @octave_gpib/fwrite
  @octave_gpib/fprintf
  @octave_gpib/fscanf
  spoll
  trigger
  clrdevice
VXI11
  vxi11
  @octave_vxi11/fopen
  @octave_vxi11/fclose
  vxi11_read
  vxi11_write
  vxi11_close
General
  instrhwinfo
