[comp.os.os9] Information regarding set/get device status calls

tyler@stpl.UUCP (Tyler IVANCO) (05/23/89)

	We are currently writing a number of device drivers for a 
'030 processor system and have a couple of questions regarding 
OS/9's treatment of the get/set status codes and the stack.

1) What (if any) of the get/set status codes for the devices drivers
   go to the device driver without being processed by the file 
   manager (i.e. to say, the file manager simply passes the function
   call over to the device driver for processing)?

2) Is it possible to guarrentee a minimum stack size when the device
   driver is operating? In the example drivers that we have, the 
   stack size in the module header always reads 0.  Is it possible
   to set this value and does the kernel recognize it?

3) Are there any optical drive drivers out there, does a library of
   pd drivers exist; e.g. National Instruments 488 driver etc?

						Thanks,
							Tyler