[i2c] [PATCH 4/6]: i2c-pcf: Add a way for bus driver to ask for no smbus quick mode support.

Wolfram Sang w.sang at pengutronix.de
Thu Oct 16 12:46:23 CEST 2008

Hi Jean,

On Thu, Oct 16, 2008 at 12:13:15PM +0200, Jean Delvare wrote:

> > The pcf driver sets the class bit used by FAN and temperature sensors,
> > so the I2C layer goes poking around all of the standard address
> > locations each of those drivers list.
> By setting this class flag in your driver, you ask for these probes.

What about making this more obvious? Something like this?

All the best,



i2c: Make clear what the class field of i2c_adapter is good for

Signed-off-by: Wolfram Sang <w.sang at pengutronix.de>
 include/linux/i2c.h |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Index: linux-2.6/include/linux/i2c.h
--- linux-2.6.orig/include/linux/i2c.h
+++ linux-2.6/include/linux/i2c.h
@@ -345,7 +345,7 @@ struct i2c_algorithm {
 struct i2c_adapter {
 	struct module *owner;
 	unsigned int id;
-	unsigned int class;
+	unsigned int class;		  /* classes to allow probing for */
 	const struct i2c_algorithm *algo; /* the algorithm to access the bus */
 	void *algo_data;

  Dipl.-Ing. Wolfram Sang | http://www.pengutronix.de
 Pengutronix - Linux Solutions for Science and Industry
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