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How to enable/disable INTx emulation OSS v4.2 CentOS 5.8
Posted: Wed Sep 19, 2012 7:22 pm
by dogbertwrldrulr
Hello,
Can someone please tell me the commands to enable or disable INTx emulation on an audio card driver? Or any PCI device for that matter?
As stated in the subject I am using CentOS 5.8 and OSS v4.2 (2007 sources) and the audio device I am using is an M-Audio Delta 1010lt card.
Thanks!
Re: How to enable/disable INTx emulation OSS v4.2 CentOS 5.8
Posted: Thu Sep 20, 2012 11:35 am
by cladisch
In a Linux driver, this would be the pci_disable/enable_msi() functions.
They work only on devices that actually support MSIs; the Delta 1010LT is way too old for that.
Why are you interested in INTx emulation?
Re: How to enable/disable INTx emulation OSS v4.2 CentOS 5.8
Posted: Thu Sep 20, 2012 1:45 pm
by dogbertwrldrulr
Im not interested in it, but I am seeing that INTx (actuall DisINTx-) is one of the control parameters on my card (via lspci) and I dont think it should be. I have a second configuration that works and it does not list INTx as a control parameter so I was wondering how to disable it so I could get a matching configuration. The 2 setups have different hardware setups which I believe is the underlying problem, this was just something to try out.
Re: How to enable/disable INTx emulation OSS v4.2 CentOS 5.8
Posted: Thu Sep 20, 2012 2:15 pm
by cladisch
All PCI 2.3 devices have the DisINTx bit. Older lspci versions might not show it.