Messages in this thread | | | Date | Mon, 23 Mar 2009 10:03:23 +0100 | From | Daniel Krüger <> | Subject | Re: The Linux Staging tree, what it is and is not. |
| |
david@lang.hm schrieb: > On Fri, 20 Mar 2009, Alan Cox wrote: > >>> information of what to copy to where comes from the object dictionary. >>> But it is possible to extract this information from the objdict and pass >>> it via generic structures (e.g. something like IO vectors) to the PDO >>> module in kernel. The information flow of the configuration data is >>> one-way only, from userspace to kernel. This is what I plan to implement >>> in openPOWERLINK, because the copy information can also be passed to a >>> special hardware like a DMA controller. >> >> Ok so your hardware in fact really is oriented around an mmap type >> interface ? > > what I understand from this thread is that the hardware is a standard > ethernet card.
It may be a standard Ethernet controller. But it could also be a controller with a special hardware acceleration.
cu, Daniel
-- SYS TEC electronic GmbH August-Bebel-Str. 29 D-07973 Greiz
Telefon : +49 (0) 3661 6279 0 Fax : +49 (0) 3661 6279 99 Email : daniel.krueger@systec-electronic.com Internet : http://www.systec-electronic.com
Managing Director : Dipl.-Phys. Siegmar Schmidt Commercial registry : Amtsgericht Jena, HRB 205563
| |