A little help in SCSI Device Drivers

A little help in SCSI Device Drivers

[Nitin Dhingra]

Respected Sir,
I had got your mail from redhat.com and came to know you are 
working under drivers in Linux. I am also working in this field,
I would like you to help me out with one problem as I am stuck here
and couldn't proceed further.

I am working in a project that involves making a low-level device 
driver for a SCSI card (Symbios Logic sym 53c810) and the problem 
that I am facing is with interrupts. There is a kind of a script 
processor in the card to which we give some instructions to interrupt
and the IRQ line 10 is supposed to be interrupted. Now the problem 
is we request irq 10 and provide our ISR entry, but this ISR is never
called infact when we check /proc/interrupts or /proc/stat, there is
"0" value infront of our entry.

I have verified that interrupt has occured in the SCSI as I had 
polled and found out. Now I am not able to get where could be the 
problem as the interrupt is ocuuring from SCSI side and also the card
is working fine that I have checked. 

Could you suggest some possible solution to this?

I would be awaiting your precious suggestion.

Thanks,

Regards,
Nitin Dhingra


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Re: A little help in SCSI Device Drivers

[Peter Samuelson]

[Nitin Dhingra]
> I had got your mail from redhat.com and came to know you are 
> working under drivers in Linux.

What you got was a mailing list of probably tens of thousands of
subscribers.  Some of us are working on drivers, some are not.

> I am working in a project that involves making a low-level device 
> driver for a SCSI card (Symbios Logic sym 53c810)

Is there something wrong with the 3 existing drivers for this chip?

Peter
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