Installing Interrupt Service Routines under OS/2 2.0

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#2099

From: Malathi Ramdas
Date: Thu, 15 Oct 1992 18:33

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   I am writing a charater based instrument control device driver for OS/2 2.0.
I am using the C callable DevHlp functions using drvlib.lib file. I use the SetIRQ 
to install the interrupt service routine. I have followed the procedures as is
stated in the book (Writing OS/2 device drivers in C) and the sample programs. But
For some reason the interrupt service routine is not getting installed. I know
that there is no interrupt conflict and when I check the bits in our 
instrument control board's registers that should have caused the interrupt I
see that they are set. But for some reason the ISR never gets invoked (maybe
b'cos it never got installed). The SetIRQ function which I call during initia
lization time returns without any error indicating that the ISR was installed
successfully. Would any device driver expert know what could be missing in
my device driver that is causing this problem? 
   Thanks
Malti Ramdas

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From: ramdas@natinst.com (Malathi Ramdas)
Newsgroups: comp.os.os2.programmer
Subject: Installing Interrupt Service Routines under OS/2 2.0
Date: 15 Oct 1992 13:33:37 -0500
Organization: National Instruments, Austin, TX
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