Re: Mixing AD conversion and DIO writes

On Wed, Mar 16, 2005 at 04:08:37PM +0000, Daniel Nilsson wrote:
> I'm only concerned with input at this time, checking for the number of
> samples received seems reasonable. My only concern with this is error
> handling, which I don't know how to check for. Is it reasonable to think that
> if I'm just waiting in a loop to see if I have sampled all my data that the
> hardware could take some kind of error and stop ? In that case, I'm worrying
> about being stuck in the loop waiting for data forever. Can I check somehow if
> the command is process died due to an error ?

read() returns 0 if the subdevice has stopped normally, or EPIPE if
there was an error.



dave...

Received on 2005-03-19Z18:49:01