ball@impression-technology.com said:
> ep0 at pcmcia0 function 0 port 0x330-0x33f: 3Com 3C589 Ethernet ep0:
> MAC address 00:10:4b:a2:66:3e ep0: wrote 0x7ff to TX_AVAIL_THRESH,
> read back 0xfffc. Interface disabled 

Fwiw, this might be not a pcmcia problem. On a PII desktop box I get:
> ep1 at pci0 dev 12 function 0: 3Com 3C900 Ethernet
> ep1: MAC address 00:60:08:57:cc:c4
> ep1: wrote 0x7ff to TX_AVAIL_THRESH, read back 0xfffc. Interface disabled

If I hack the driver to ignore this everything is well.
> ep1: 8KB word-wide FIFO, (undefined) Rx:Tx split, utp/aui/bnc default utp
> ep1: interrupting at irq 11

best regards
Matthias