Thread (3 messages) 3 messages, 3 authors, 2010-09-10

Re: How to define an I2C-to-SPI bridge device ?

From: Anton Vorontsov <hidden>
Date: 2010-09-10 18:27:35
Also in: linux-devicetree

On Fri, Sep 10, 2010 at 08:14:44PM +0200, André Schwarz wrote:
[...]
quoted
Does the device actually generate edge interrupts?  Or is it a level
irq device?  If it is a level irq device, then the correct way to
handle this is to disable the irq line so that the event can be
handled at non-irq context, and then reenable it when finished.
The irq is level-low active.
Will do it via disable/re-enable then.
FYI, In newer kernels you don't have to do it manually, there's
request_threaded_irq() for this.

-- 
Anton Vorontsov
email: cbouatmailru@gmail.com
irc://irc.freenode.net/bd2
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