Re: com(4) and LSI bug workaround

[Izumi Tsutsui <tsutsui%ceres.dti.ne.jp@localhost>]

> > It looks meaningless that the (*sc_vendor_workaround)() hook function
> > is inside of MD if (sc->sc_type == COM_TYPE_ARMADAXP) statement.
> > 
> > Isn't it simpler to prepare a MD hook function that returns
> > (possible pre-processed) IIR register value that can be used
> > to check if the interrupt for the device is pending or not?
> 
> I performed operation to a com register into com.c.
> I think that it is not so brief to return the value of both IIR(u_char)
> and an error moreover.

Sorry I don't understand what you mean.

Do you think the name of "sc_vendor_workaround" is really appropriate
for the function that is called only in COM_TYPE_ARMADAXP case?

The requirement in the MI interrupt handler is just
"whether interrupts are pending or not," isn't it?

---
Izumi Tsutsui