I guess the I2C spec does not restricts.(A device to have an address that fits in the first 7 bits, but still requires 10 bit address transactions)
But I don't think their will be any I2C slave doing this. Why a 7 bit slave want to have extra byte for every transaction? Note: I am on vacation with limited e-mail access. I will be back on Nov 26. Thanks, -Bharat > From: [email protected] > Date: Thu, 15 Nov 2012 16:53:59 +0000 > Subject: Re: [PATCH] of_i2c: I2C child node 10-bit client addressing > To: [email protected] > CC: [email protected]; [email protected]; [email protected] > > On Thu, Nov 15, 2012 at 9:35 AM, <[email protected]> wrote: > > From: Bharat Kumar Reddy <[email protected]> > > > > I2C clients which has 10 bit address, struct i2c_board_info, > > member "flags = I2C_CLIENT_TEN" is needed. > > > > Signed-off-by: Bharat Kumar Reddy <[email protected]> > > Did you see my questions from yesterday? > > g. > > > > > diff --git a/drivers/of/of_i2c.c b/drivers/of/of_i2c.c > > index 3550f3b..28c5566 100644 > > --- a/drivers/of/of_i2c.c > > +++ b/drivers/of/of_i2c.c > > @@ -57,6 +57,10 @@ void of_i2c_register_devices(struct i2c_adapter *adap) > > continue; > > } > > > > + /* Support for i2c 10 bit client address */ > > + if ((info.addr > (1 << 7) - 1) && (info.addr <= (1 << 10) - > > 1)) > > + info.flags = I2C_CLIENT_TEN; > > + > > info.irq = irq_of_parse_and_map(node, 0); > > info.of_node = of_node_get(node); > > info.archdata = &dev_ad; > > -- > > 1.7.6 > > > > > > > > -- > Grant Likely, B.Sc., P.Eng. > Secret Lab Technologies Ltd.
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