Am 12.10.2010 17:28, Peter Pastor wrote: > Hey Jan, Wolfgang, > >> You can't change reality (physical wiring) this way. > Well, I guess you are right ! > >> If you do not need the USB interface, unbind the driver so that the >> Linux IRQ usage ends: > > I might not need the USB interface. At least there are 6 USB ports on the > back, so I hope I do not disable all of them. > However, besides the USB controller > > 00:1a.0 USB Controller [0c03]: Intel Corporation 82801JI (ICH10 Family) USB > UHCI Controller #4 [8086:3a37] > > the IRQ 16 is also shared by > > 05:00.0 SCSI storage controller [0100]: LSI Logic / Symbios Logic SAS1068E > PCI-Express Fusion-MPT SAS [1000:0058] (rev 08)
Then you might be lost if you can't live without that controller as well or flip PCI slots (see FAQ link below). > > which I guess I cannot simply unbind from the PCI bus... (check lspci.txt > attached) > > Also, I did a > > # echo 0000:00:1a.0 > /sys/bus/pci/drivers/ehci_hcd/unbind > > but it does work for me... --> bash: echo: write error: No such device > Do I have to have PCI hot-plugging enabled or some such ? No. Check what /sys/bus/pci/devices contains, which directory points to your USB controller. > > Also, I have seen in > /usr/src/xenomai-2.5.5.1/doc/generated/html/life-with-adeos that there > methods to share interrupts even between domains. So my question is, is > there an option that allows me to do so ? Is that recommended ? > Unfortunately, I am stuck to use this particular motherboard. Please see http://www.xenomai.org/index.php/FAQs#What_can_I_do_if_Xenomai_and_Linux_devices_share_the_same_IRQ.3F and recent discussions on this list (or xenomai-devel, google will help). Jan
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