IO question (hGetLine)

I've written a Haskell program that reads continuously from a character device that provides data line by line and blocks the reader when there's no data available yet. At the moment performance isn't a real issue so I thought I would give hGetLine a try. Unfortunately the program is consuming a lot of cpu power when the input is blocked which is definitely an issue of hGetLine because this wasn't the case when I tested it with # cat /dev/chardev which waits silently until data is available. Any suggestions? Thanks in advance! Gerd _________________________________________________________________ The new MSN 8: advanced junk mail protection and 2 months FREE* http://join.msn.com/?page=features/junkmail