Hi

My e1000 NIC and another card (Arcnet PCI card) shares the same
interrupt. I am busy writing a RTDM driver for the Arcnet card. As I
understand it is possible to share interrupts between real-time device
drivers?

Anyways, I changed the rt_e1000 driver's rtdm_irq_request() call to
pass the RTDM_IRQTYPE_SHARED flag, and did the same to my Arcnet
driver. The Arcnet ISR returns RTDM_IRQ_NONE when it is not its
interrupt (it seems as though the rt_e1000 also does this correctly?)

When I insert the first of the two drivers, everything seems OK.
However, when I insert the second driver (the order doesn't seem to
matter), rtdm_irq_request() returns -EBUSY. Are there perhaps some
steps that I am missing to get shared interrupts working?

(I am using RTnet 0.9.6 and RTAI 3.4)

Thanks
Thinus Viljoen

-------------------------------------------------------------------------
Take Surveys. Earn Cash. Influence the Future of IT
Join SourceForge.net's Techsay panel and you'll get the chance to share your
opinions on IT & business topics through brief surveys-and earn cash
http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV
_______________________________________________
RTnet-users mailing list
RTnet-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/rtnet-users

Reply via email to