On Fri, 27 Feb 2009 18:30:36 -0800 David Brownell [off-list ref] wrote:

quoted

ah, OK, twl4030_i2c_read_u8() does i2c I/O.

Can't do that. 

Threaded IRQ handlers *can* do that.  That's the point.

Now, if you were to say "keep waiting a few more years
until some threaded IRQ framework finally merges" ...
the question comes up, "What to do in the meanwhile".
(Ditto, "well, we've been waiting a long time now to
see those threaded IRQs, what's up with them?")

I don't have a clue what you're talking about.  Where is this "threaded
irq handler" implementation of which you speak?  File and line?