I'm using Xircom creditcard ethernet 10/100 on a 10baseT network. It works fine except for two messages:
xirc2ps_cs.c 1.31 1998/12/09 19:32:55 (dd9jn+kvh)
eth0: Xircom: port 0x300, irq 3, hwaddr 00:80:C7:4B:4A:BF
eth0: auto negotation failed; using 10mbs
eth0: media 10BaseT, silicon revision 4
kernel: xirc2ps_cs: eth0: RX drop, too much done
last message repeated 75 times
I have put 'IF_PORT="10baseT"' into "/etc/pcmcia/network.opts" to help it recognize our 10mbs network but it doesn't seem to change anything.