Re: Threaded irq handler question

[Mark Brown]

On Thu, Apr 22, 2010 at 11:51:06AM +0100, Will Newton wrote:
> On Thu, Apr 22, 2010 at 2:37 AM, Yong Zhang <yong.zhang@xxxxxxxxxxxxx> wrote:

> > Does IRQF_ONESHOT meet your need?

> Almost I think, but I believe if my check handler does not wake the
> thread then I don't get another interrupt ever. I can fix this by
> making my check handler always return WAKE_THREAD, which is slightly
> sub-optimal, but not a big problem.

You shouldn't have a primary IRQ handler at all for I2C type devices
where there's no ability to interact with the chip.

[Sorry, hadn't noticed this subthread.]
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