From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: Stephen Hemminger <shemminger@osdl.org>
Cc: Andrew Morton <akpm@osdl.org>, Linus Torvalds <torvalds@osdl.org>,
linux-kernel@vger.kernel.org
Subject: Re: better leve triggered IRQ management needed
Date: Sat, 29 Apr 2006 22:25:11 +0100 [thread overview]
Message-ID: <1146345911.3302.36.camel@localhost.localdomain> (raw)
In-Reply-To: <20060424114105.113eecac@localhost.localdomain>
On Llu, 2006-04-24 at 11:41 -0700, Stephen Hemminger wrote:
> I am seeing repeated problems with misconfigured systems that have shared IRQ
> devices configured for edge-triggered.
I've been thinking about this a chunk more. The embedded folks have been
having a related argument about SA_EDGE and SA_LEVEL or similar. On some
embedded platforms the driver really has to pass this information
according to the board configuration.
Trying to guess the current IRQ level v edge on a PC is very hard.
Trying to set it correctly from the driver is rather easier.
next prev parent reply other threads:[~2006-04-29 21:14 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-04-24 18:41 better leve triggered IRQ management needed Stephen Hemminger
2006-04-24 18:59 ` linux-os (Dick Johnson)
2006-04-24 19:02 ` Linus Torvalds
2006-04-24 19:08 ` Linus Torvalds
2006-04-24 19:53 ` Arjan van de Ven
2006-04-24 20:16 ` Alan Cox
2006-04-24 20:43 ` Arjan van de Ven
2006-04-24 21:07 ` Linus Torvalds
2006-04-24 21:20 ` Alan Cox
2006-04-24 22:26 ` Linus Torvalds
2006-04-24 21:22 ` [RFC 1/2] irq: record edge-level setting Stephen Hemminger
2006-04-24 21:49 ` Alan Cox
2006-04-24 21:41 ` Stephen Hemminger
2006-04-24 22:34 ` Linus Torvalds
2006-04-24 22:58 ` Stephen Hemminger
[not found] ` <20060424141926.3872f921@localhost.localdomain>
2006-04-24 21:22 ` [RFC 2/2] warn on shared edge-triggered irq Stephen Hemminger
2006-04-25 15:23 ` better leve triggered IRQ management needed Michael Buesch
2006-04-24 19:15 ` Russell King
2006-04-24 20:18 ` Linus Torvalds
2006-04-24 19:25 ` Stephen Hemminger
2006-04-24 19:35 ` linux-os (Dick Johnson)
2006-04-24 20:19 ` Linus Torvalds
2006-04-24 20:50 ` linux-os (Dick Johnson)
2006-04-24 21:09 ` Linus Torvalds
2006-04-29 21:25 ` Alan Cox [this message]
2006-04-29 21:58 ` Linus Torvalds
2006-04-30 4:48 ` Neil Brown
2006-04-30 5:19 ` Linus Torvalds
2006-04-30 6:13 ` Neil Brown
2006-04-30 6:59 ` Linus Torvalds
2006-05-02 5:10 ` Neil Brown
2006-05-02 15:05 ` Linus Torvalds
2006-04-30 7:36 ` Arjan van de Ven
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