From mboxrd@z Thu Jan  1 00:00:00 1970
From: David Brownell <david-b-yBeKhBN/0LDR7s880joybQ@public.gmane.org>
Subject: Re: Two start conditions for PCA9554
Date: Wed, 30 Apr 2008 23:01:56 -0700
Message-ID: <200804302301.56732.david-b@pacbell.net>
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> I have an embedded board with a PCA9554 on it. It's an 8-bit IO expander
> similar to the PCF8574 in mainline.

More like the pca9534 or pca9538.


> Can such a protocol be handled by the i2c subsystem?

Try to tell drivers/gpio/pca953x.c that it's a pca9534;
I think they're register-compatible.

- Dave

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