Re: Adding MAX1363 to BBB

[Michael Welling <mwelling@ieee.org>]

On Thu, Aug 27, 2015 at 01:40:24PM -0700, Greg Wilson-Lindberg wrote:
>  
> 
> > -----Original Message-----
> > From: Michael Welling [mailto:mwelling79@gmail.com] On Behalf 
> > Of Michael Welling
> > Sent: Thursday, August 27, 2015 12:16 PM
> > To: Greg Wilson-Lindberg
> > Cc: linux-iio@vger.kernel.org
> > Subject: Re: Adding MAX1363 to BBB
> > 
> > On Thu, Aug 27, 2015 at 12:10:06PM -0700, Greg Wilson-Lindberg wrote:
> > >  
> > > 
> > > > -----Original Message-----
> > > > From: Michael Welling [mailto:mwelling79@gmail.com] On Behalf Of 
> > > > Michael Welling
> > > > Sent: Monday, August 24, 2015 9:55 AM
> > > > To: Greg Wilson-Lindberg
> > > > Cc: linux-iio@vger.kernel.org
> > > > Subject: Re: Adding MAX1363 to BBB
> > > > 
> > > > On Mon, Aug 24, 2015 at 09:26:53AM -0700, Greg 
> > Wilson-Lindberg wrote:
> > > > > I don't know if anybody on this list can answer this, we
> > > > are going to add an IIO compatible Maxim MAX1363 4 channel ADC to 
> > > > our BBB cape and I am not sure how to specify in the dts 
> > file that 
> > > > it is connected to the I2C channel.
> > > > > If anyone can give me suggestions, it would be greatly 
> > appreciated.
> > > > >  
> > > > 
> > > > Give this a try:
> > > > 
> > > > &i2c1 {
> > > > 	status = "okay";
> > > > 
> > > > 	adc@34 {
> > > > 		compatible = "maxim,max1363";
> > > > 		vcc-supply = <&reg_3v3>;
> > > > 		reg = <0x34>;
> > > > 	};
> > > > };
> > > > 
> > > > This assume you have an i2c1 and reg_3v3 defined.
> > > > 
> > > > Here is a real example that looks like it uses the same driver:
> > > > http://lxr.free-electrons.com/source/arch/arm/boot/dts/imx27-p
> > > > hytec-phycard-s-rdk.dts?v=3.14#L56
> > > > 
> > > 
> > > I've got the max1363 installed on a board and it is showing 
> > up as an I2C device, but not as an IIO device. I used your 
> > example above for the dts file.
> > > 
> > > Any thoughts?
> > 
> > Try using the following instead:
> > &i2c1 {
> > 	status = "okay";
> > 
> > 	adc@34 {
> > 		compatible = "max1363";
> > 		vcc-supply = <&reg_3v3>;
> > 		reg = <0x34>;
> > 	};
> > };
> 
> I changed the dts to "max1363", but that didn't get it to show up under iio devices.
> 

Is the driver compiled into the kernel or a module?

> > 
> > > 
> > > > 
> > > > > Greg Wilson-Lindberg
> > > > > Sakura Finetek
> > > > > 310-783-5075
> > > > > --
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> > > > 
> >