for the same purpose (ignoring invalid interrupts).
For cards that are not able to stop all interrupts (or we don't know a way
to do that in software, at least) run the clearirq callback even when
ignoring an interrupt because we are not enabled. Otherwise the card would
stop interrupting.
Reserve a driver specific callout handle and an int value in the generic
isic_softc to allow card drivers to implement fancy blinkenlights.
(de)activate for pcmcia cards.
Implement detach/(de)activate for PCI cards.
Clean up internal state (free call-descriptors) if a controller is
detached while it has open connections.
B-channel and D-channel drivers separately) split the Fritz!PCI card
driver out of the isic driver.
The new device is called "ifpci" and uses the same D-channel driver as the
isic devices, but has it's own B-channel driver.
martin