async input & call back for NI ATMIO 16 board

Hi all,

  I am having some problems with using ni_atmio16d driver . (old NI ATMIO 16 
board).
I am unable to use the asynchronous cmd & callback utility. While doing async 
input, the call back function is never called after EOS and the data filed in 
the buffer is always zero.  

The command test as well as command calls return zero successfully. Also the 
callback register command returned zero successfully.

 ( Strangely it sets the analog output to -10 v when I rmmod my module.) This 
async cmd input also behaves  the same in user space with comedilib.
 I dont have any problem with insn and other sync read/write functions.

  Any hints on how to approach this problem would be much apprecited.
  I thank you for your help .

Thanks,
aravind.

Received on 2003-08-04Z20:48:49