From: Jan Kiszka <jan.kiszka@domain.hid>
To: Peter Pastor <peter.pastor@domain.hid>
Cc: xenomai@xenomai.org
Subject: Re: [Xenomai-help] Xenomai and PEAK can bus card problem
Date: Tue, 12 Oct 2010 19:25:40 +0200 [thread overview]
Message-ID: <4CB49A14.3050400@domain.hid> (raw)
In-Reply-To: <AANLkTikwqboZGsSC99yMOQZTm48QoT8C6j+RPi3Wcs=k@domain.hid>
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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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next prev parent reply other threads:[~2010-10-12 17:25 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-10-09 6:44 [Xenomai-help] Xenomai and PEAK can bus card problem Peter Pastor
2010-10-09 8:03 ` Philippe Gerum
2010-10-09 18:09 ` Peter Pastor
2010-10-10 19:30 ` Peter Pastor
2010-10-10 21:28 ` Philippe Gerum
2010-10-11 6:19 ` Peter Pastor
2010-10-11 7:15 ` Gilles Chanteperdrix
2010-10-11 15:59 ` Peter Pastor
2010-10-11 19:10 ` Gilles Chanteperdrix
2010-10-11 19:29 ` Peter Pastor
2010-10-11 19:38 ` Wolfgang Grandegger
2010-10-11 21:23 ` Peter Pastor
2010-10-12 0:09 ` Peter Pastor
2010-10-12 1:55 ` Peter Pastor
2010-10-12 5:59 ` Jan Kiszka
2010-10-12 7:37 ` Wolfgang Grandegger
2010-10-12 15:28 ` Peter Pastor
2010-10-12 17:25 ` Jan Kiszka [this message]
2010-10-13 6:14 ` Peter Pastor
2010-10-13 6:20 ` Gilles Chanteperdrix
2010-10-13 6:31 ` peter.pastor
2010-10-11 21:09 ` Stefan Kisdaroczi
2010-10-11 21:45 ` Gilles Chanteperdrix
2010-10-12 6:38 ` Jan Kiszka
2010-10-09 9:58 ` Gilles Chanteperdrix
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