debug flags.
From Linux: handle an RTL8180 bug. Sometimes the NIC skips from
the middle of the ring to the 0th rx descriptor. Now the driver
resynchronizes.
Handle a receive descriptor underrun or Rx FIFO overflow condition
in the way that the Linux driver does. This kind of seems like
overkill, but whatever.
Protect rtw_ioctl with splnet().
Do not load a tx descriptor with a buffer shorter than 4 bytes.
Handle a transmit timeout less disruptively.
My card now probes as:
rtw0 at cardbus1 dev 0 function 0: Belkin F5D5020v3 802.11b (RTL8180 MAC/BBP)
rtw0: rtw_cardbus_attach mapped 512 bytes mem space
rtw0: interrupting at 10
rtw0: hardware version D
rtw0: SROM version 1.2
rtw0: RF: Philips SA2400A, PA: Philips SA2411
rtw0: Geographic Location USA
rtw0: 802.11 address 00:30:bd:4d:ed:de
rtw0: 11b rates: 1Mbps 2Mbps 5.5Mbps 11Mb
XXX The driver still doesn't actually _work_...
