Subject: Re: [linux-audio-user] dipping toes in 2.6 waters
From: Rick B (zajelo3_AT_cfl.rr.com)
Date: Sun Aug 08 2004 - 08:28:54 EEST
Lee Revell wrote:
>On Sun, 2004-08-08 at 00:30, Luke Yelavich wrote:
>
>
>>On Sun, Aug 08, 2004 at 02:27:02PM EST, Lee Revell wrote:
>>
>>
>>>This ensures that those interrupts have the highest priority of anything
>>>on the system. The soundcard is important for obvious reasons, and the
>>>RTC is used for midi timing. These are also the only two devices on the
>>>system (other than the timer irq 0 which cannot be made threaded) whose
>>>nature imposes an inherehent real time constraint on the system. For
>>>any other device that can raise an interrupt, we can process it at our
>>>leisure, but if we don't handle the sound card interrupt within the
>>>period time we are hosed.
>>>
>>>
>>Sorry, I haven't really been following the thread, but how do you set interrupts
>>to be non-threaded?
>>
>>
>
>Just echo 0 > /proc/irq/foo/bar/threaded.
>
>root_AT_mindpipe:/home/rlrevell/testresults# find /proc/irq -name threaded -print -a -exec cat {} \;
>/proc/irq/15/ide1/threaded
>1
>/proc/irq/14/ide0/threaded
>1
>/proc/irq/12/uhci_hcd/threaded
>1
>/proc/irq/11/eth0/threaded
>1
>/proc/irq/11/uhci_hcd/threaded
>1
>/proc/irq/10/EMU10K1/threaded
>0
>/proc/irq/10/uhci_hcd/threaded
>1
>/proc/irq/8/rtc/threaded
>0
>/proc/irq/1/i8042/threaded
>1
>
>Lee
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Is there any way to do this on a 2.4 kernel? Like say,
2.4.26-ll.rhfc1.ccrma, or is this already covered with how Fernando
configures the kernel?
Rick B
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