- From: John McKisson <eowaennor_at_elitemail.org>
- Date: Thu, 06 Nov 2003 11:53:24 -0800
I am using an NI PXI-6031E board in an embedded Debian linux system. I have set up asynchronous signal handling, but I'm confused as to how this works. I get a SIGIO every 500 us, which corresponds with my scan time, and I want to be able to read 1 whole scan from the card each time I get this signal. Using the sigio example included with comedilib, I have noticed that when I read from the device, it only returns 6 bytes most of the time (out of a requested 48). It seems that read is only called once before I get an interrupt, so why am I only reading 6 bytes? -John eowaennor_at_elitemail.org -- John McKisson eowaennor_at_elitemail.org -- http://www.fastmail.fm - And now for something completely different…
Received on 2003-11-06Z19:53:24