Method: I2C::Dev#write

Defined in:
lib/i2c/backends/i2c-dev.rb

#write(address, *params) ⇒ Object

this tries to lock the coms mutex, unless already held, then sends every param, begining with params[0] If the current param is a Fixnum, it is treated as one byte. If the param is a String, this string will be sent byte by byte. You can use Array#pack to create a string from an array For Fixnum there is a convenient function to_short which transforms the number to a string this way: 12345.to_short == [12345].pack(“s”)



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# File 'lib/i2c/backends/i2c-dev.rb', line 30

def write(address, *params)
  if(@comsMutex.owned?)
    keepLock = true;
  else
    @comsMutex.lock;
  end

  begin
    setup_device(address);
    raw_write(params);
  ensure
    @comsMutex.unlock() unless keepLock;
  end
end