Jason R Thorpe wrote:

> You can already mark the device as unusable!  Take the case of an Ethernet
> device, for example.  If the attach fails, don't call if_attach().  That
> will nicely prevent the device from being used.

I'd prefer if the general device framework kept track of if the device is
functional.  That way I don't have to have my own flag in the driver and
test it on every entry point to the driver.
The autoconf code could also print a consistent message for non-functioning
devices.

But it's a minor issue, I don't have a real problem with the current approach.
I just think it could be slightly improved.


--

        -- Lennart