Problem registering the Platform ADC driver

[jocke at holstenhof.se]

> Dear Friends,
>
> I am having issue with registering the platform device driver for ADC.
>
> http://pastebin.com/Ym1NTkfL - Link contains the snip code of kernel
> platform device  and driver registration code .
>
> I have build the driver as module. When I load the driver as module, the
> probe function is not called from the driver. Can any one suggest what is
> missing in the code?

As far as I am awayre, this indicates that the platform device is missing.
somehow. Basically, the kernel doesn't know how to handle your new device.

If you in you init function also call "t91_add_device_adc" it might work a
bit better ;-)

For me, I usually set this up in the arch specific board file. There, I
also create device specific data which is then inserted into the driver
once it's loaded. But, that may be too much information at this time :-)

If you take a look at arch/arm/mach-msm/board-msm7x30.c, you will find
"static struct platform_device *devices[] __initdata = {"
This array is used to set up new platform devices. The structure looks
jsut like the one you've created in the top of your code.

Then in msm7x30_init, you will see that all platform devices that are
defined in this struct will be registered via the platform_add_devices()
function call.

To get more information, please take a look at the struct platform_device
structure. It contains some interesting information and user available
pointers that can be used to allocate driver specific configuration data.

>
> I tried to find and study over internet about how to create platform
> device
> driver but in vain.

I recommend to look at a similar driver (i2c drivers basically behave the
same, and quite often, ADC devices also talk i2c), to figure out exactly
how it works.

My knowledge of the English language and my currently available time are
sadly not sufficient to explain this in more detail :-(

Hope this information got you started though.

Brs,
/Jocke!