Wrong number of arguments

[markf]

I'm having trouble (and appear to be the only one doing so) using serialport with ruby 1.8.6/1.8.7. I've tried on two installations - one Linux (2.6.26) the other OS X and I'm having the same behavior on both. For starters, I've built the binary in ext/native appropriately on both (and I know it works as I had some slight changes to the text of the tty ports). Then I see something like the following on both installations:

irb(main):001:0> require 'rubygems'
=> true
irb(main):002:0> require 'serialport'
=> true
irb(main):003:0> sp = SerialPort.new("/dev/ttyUSB1", 9600)
TypeError: can't convert String into Integer
    from (irb):3:in `initialize'
from (irb):3:in `new'
from (irb):3

Passing a string should work, I thought, but I can easily work around that - so far did it using the C piece

irb(main):004:0> sp = SerialPort.new(1, 4800, 8, 1, SerialPort::NONE)
ArgumentError: wrong number of arguments (5 for 2)
from (irb):4:in `initialize'
from (irb):4:in `new'
from (irb):4
from :0

This part is the issue. It isn't allowing me to send more than 2 arguments; that is, it doesn't seem to be allowing me to use the variable argument list *params. However, if I do 2 or less, I have success. Surely I'm doing something silly here, but from what I can tell, this is in line with all of the examples. The included miniterm.rb has the same issue.

irb(main):005:0> sp = SerialPort.new(1)
=> #<SerialPort:0x7f95cd51f648>
irb(main):006:0> sp = SerialPort.new(1,4800)
=> #<SerialPort:0x7f95cd50db50>

Surely I'm doing something wrong (consistently) as this is showing up wherever I install.

The issue exists with the serialport-1.0.1 and 1.0.2 gems as well as historical ruby-serialport gems.

[markf]

More information:

From my installed serialport.rb:

def SerialPort::new(port, *params)
   sp = create(port)
   begin
      sp.set_modem_params(*params)
   rescue
      sp.close
      raise
   end
   return sp
end

Looks right to me.

[hparra]

Does the same behavior occur with Serialport.open?

[hparra]

Are you building this through ruby gems? Version? Mac OS X version (10.6)? 64-bit?

[markf]

Same behavior exists with Serialport.open:

irb(main):003:0> sp = SerialPort.open("/dev/ttyUSB1", 4800, 8, 1)
ArgumentError: wrong number of arguments (4 for 2)
from (irb):3:in `initialize'
from (irb):3:in `open'
from (irb):3
from :0

Building through ruby gems on both platforms.

Mac OS X version is 10.6.3.

[markf]

Messing around a bit more with this today and explicitly directed Ruby to the location of serialport.rb (require '/path/serialport.rb'), and it worked as expected. Not sure exactly what it might be seeing with just require 'serialport' but obviously picking something else up. Either way, closing this issue.