com port created as host-pipe on kernel >= 2.6.23 are not connectable,
so it's not useable.
with kernel < 2.6.23 it works without problems.
tested with virtualbox 1.5 and 1.5.2.
socat -d -d -d /tmp/gps exec:'gpspipe -r'
2007/10/18 19:26:45 socat[5186] I socat by Gerhard Rieger - see www.dest-unreach.org
2007/10/18 19:26:45 socat[5186] I This product includes software developed by the OpenSSL Project for use in the OpenSSL Toolkit. (http://www.openssl.org/)
2007/10/18 19:26:45 socat[5186] I This product includes software written by Tim Hudson (tjh@cryptsoft.com)
2007/10/18 19:26:45 socat[5186] I interpreting address "/tmp/gps" as file name
2007/10/18 19:26:45 socat[5186] I "/tmp/gps" is a socket, connecting to it
2007/10/18 19:26:45 socat[5186] I socket(1, 1, 0) -> 3
2007/10/18 19:26:45 socat[5186] E connect(3, /tmp/gps, 110): Connection refused
2007/10/18 19:26:45 socat[5186] N exit(1)
