From mboxrd@z Thu Jan  1 00:00:00 1970
From: daniel.baluta@gmail.com (Daniel Baluta)
Date: Wed, 1 Jun 2016 17:41:17 +0300
Subject: How to enable IIO driver in 3.18 kernel
In-Reply-To: <CACfW1NqS219nOQ=UarWiBGwU4T_bD3zmx0s=YTtyvuJ5xjGZeg@mail.gmail.com>
References: <CACfW1Nqt=Gc8wnj-iM1Qa2_n+YWNtZXWCcTc=aqM9fSquWkBzg@mail.gmail.com>
	<16140.1464754265@turing-police.cc.vt.edu>
	<CACfW1NqS219nOQ=UarWiBGwU4T_bD3zmx0s=YTtyvuJ5xjGZeg@mail.gmail.com>
Message-ID: <CAEnQRZCOJRXjeM71MuiDyqxpjJBj3kFfO5EzN-8FBNnQr3mASA@mail.gmail.com>
To: kernelnewbies@lists.kernelnewbies.org
List-Id: kernelnewbies.lists.kernelnewbies.org

On Wed, Jun 1, 2016 at 5:26 PM, Munagala Naresh
<munagala.nareshbabu@gmail.com> wrote:
> Thanks for the response.
>
> From the "cat /proc/devices", I could see "iio" listed like this.
>
> / # cat /proc/devices
> cat /proc/devices
> Character devices:
>   1 mem
>   4 /dev/vc/0
>   4 tty
>   5 /dev/tty
>   5 /dev/console
>   5 /dev/ptmx
>  ------
> 250 iio
> 251 pps
>  -----
>
> I could see few other deices @ /dev/xxxx. CONFIG_DEVTMPFS is not set in the
> def config. I will try it by adding "CONFIG_DEVTMPFS=y" and
> "CONFIG_DEVTMPFS_MOUNT=y".

Please don't use top posting.

You can look into /sys/bus/iio/devices/iio:device0/dev and get the
MAJOR and MINOR,
then create the device node manually, using:

mknod /dev/iio:device0 c MAJOR MINOR

Not sure why are you mentioning /proc/devices here.

thanks,
Daniel.