[linux-dvb] Re: Nebula installation and nxt6000 fault

[Gerd Knorr <kraxel@bytesex.org>]

Holger Waechtler <holger@convergence.de> writes:

> > I can catch zero-length writes and return -EINVAL, would that help?
> 
> :) yes, -

Ok, I'll fix it that way.

> in any case the i2c driver should never hang just because somebody
> passed invalid messages...

Of course it shouldn't, I was just not sure how to fix that best and
whenever the not-supported zero length writes are in the i2c protocol
specs or if that is actually a bt878 limitation.

> We could initiate a dummy-read and check whether this gets
> acknowledged,

bttv tests for i2c chips (msp34xx, ...) using reads, and it works
pretty well for ages.

  Gerd

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