Device Drivers

[Maninder Chawla]

Hi Netters,

I am having a problem writing a device driver for a at&t 3b2, running Unix 2.0.
This is my first attempt to do write a driver.

I get a "PANIC trap occurs" message every time I try to read a text file
after opening in the READ entry point in the device driver. The error message
points to a prblem in MMU (ie memory management unit )

You might think this setup is unusual because this is not a service provided
by the kernel to the driver, but I need to do it.

So my question is why this occurs and what is the way around it?
i.e. how else can I read a file in my device driver.

Thanx

-mani
mani at csun1.cs.uga.edu
or
mani%csun1.cs.uga.edu at gatech.edu