On Wed, Apr 25, 2007 at 09:28:37AM -0700, Dan Piponi wrote:

What's the easiest way, from Haskell, to open a serial port (under Windows, say) with the correct baud rate and parity, and send data through it? Is there a serial library for Haskell?

Don't know wethere there are some libraries This is just the way I would go.. I did this long ago on Windows but there may be better ways now. Get DevCPP (because it ships with a WinAPI help file) search for COM or special device or openfile .. There you might get a reference to the functions you need to set baudrate etc In general all you need is opening a file with name "COM1" on windows. I think you don't have to do all the ffi stuff yourself. There are windows api bindings already. I'd also recommend http://com0com.sourceforge.net/ . Perhaps try readFile "COM1" and see wether it works. I'd also recommend http://com0com.sourceforge.net/ . Then you can use Windows HyperTerminal to see wether your application produces some output/ send data to your application to test it. I hope I didn't tell you too much rubbish from my memory ;) You can also wait till you get a better response. I hope I didn't tell you too much rubbish from my memory ;) Good luck Marc