[EMAIL PROTECTED] schrieb am 21.04.01:
> if you do not need the standard serial port driver from linux kernel just
> compile a new kernel witout serial.o.
> I think that the problem is that that both driveres wont to reqeue the
> addres 0x3F8 etc. (comport 0)
>
> A question for the serial driver. ->
> what is the variable "loop" good for in isr_com() interrupt routine?
If it still has the funtion I used it for, it should:
- prevent lock up by exeting even when there are pending irqs.
- improove cpu-time sharing with multiple serial ports by
leaving the isr even with pending irqs.
- reduce latency for our multiport serial-port machine control board.
- allow better shared irq behavior with our hardware.
- on the other hand it allows to make the driver a polling driver
with known maximum process time.
- ... its my way to design such tasks ...
oops, guess the shared irq scheduler never made it into
the open source ...
Jens Michaelsen
>
> Anders Gnistrup
>
> Theo ten Brummelaar wrote:
>
> > Gentlepersons,
> >
> > As part of our development of an RT driver for the Cyclades-Y
> > multi-serial port card I have finally upgraded to RTL3.0, and after a
> > bit of trouble have recompiled my code, for one of our CPUs anyway, and
> > it all seems to work. I am using the API V1 still but will one day
> > upgrade in my copious free time.
> >
> > Some of our CPUs use the rt_com module and that also seems to be OK
> > except for one thing. You need to do the following to load the rt_com
> > module:
> >
> > setserial /dev/ttyS0 uart none
> > insmod rt_com
> >
> > Now, I want these machines to boot up and load whatever they need to
> > make them run, including all the RT modules. With the older version of
> > rt_com I could put
> >
> > insmod rt_com
> >
> > into the rc.local file. This no longer works, mostly I think due to the
> > setserial stuff. If I put both the setserial command and the insmod
> > rt_com command into rc.local it doesn't work.
> >
> > Any suggestions?
> >
> > Theo
> > --
> > Dr. Theo ten Brummelaar
> > The CHARA Array-Georgia State University-Mount Wilson Observatory
> > http://www.chara.gsu.edu/~theo Ph: 626-796-5405 Fax: 626-796-6717
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