Thanks, hangin' in there...
I prefer not using virtual drivers since I will then only support OS 3.2 and
up. That's why!
P.
-----Original Message-----
From: Peter Easton [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, August 02, 2000 11:50 PM
To: Palm Developer Forum
Subject: Re: Two kick ass interrupt questions!
Hi Petrus,
Good luck using non-documented and non-supported API's!
It sounds like you might be better off using a virtual serial driver. Take
a
look at knowledgebase article #1812 for some sample code.
Regards,
Peter Easton
Palm Developer Support
Petrus Wrang� wrote:
> I want to patch SerReceiveISP to be able to act quickly when chars arrive
at
> the serial port. But I want to do it in a shared library so that I can do
my
> work even (especially) when other programs are running. You might ask why
I
> don't use SerSetWakeupHandler, but it seem to disable certain serial
> functions and thus my program will not be compatible with many programs.
So,
> what's my problem? There are two of them actually. First, when I patch the
> SerReceiveISP function, I must save away the old address. But where do I
> save it so that it can be accessed at interrupt time when my
ReceiveISPPatch
> executes and wants to call the original function?
>
> Secondly, I want to do some serious coding when my patch get called. But
> that is not allowed at interrupt level. Fine, just use EvtEnqueueKey!
That's
> what I first thought, but then I must rely on the program currently
running
> to be in its event loop for me to be able to patch the EvtGetEvent (shared
> library, remember! No event loop of my own.) and pick up my custom event.
I
> must get to my routine very fast so I need another way to get out of
> interrupt level and into my code.
>
> I hope I've managed to explain what I'm trying to do.
>
> There are no words to describe how much I would appreciate any help.
>
> Regards
> Petrus Wrang�
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