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From: munagala.nareshbabu@gmail.com (Munagala Naresh)
To: kernelnewbies@lists.kernelnewbies.org
Subject: How to enable IIO driver in 3.18 kernel
Date: Wed, 1 Jun 2016 19:56:12 +0530	[thread overview]
Message-ID: <CACfW1NqS219nOQ=UarWiBGwU4T_bD3zmx0s=YTtyvuJ5xjGZeg@mail.gmail.com> (raw)
In-Reply-To: <16140.1464754265@turing-police.cc.vt.edu>

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".












Thanks,
Naresh

On Wed, Jun 1, 2016 at 9:41 AM, <Valdis.Kletnieks@vt.edu> wrote:

> On Wed, 01 Jun 2016 08:19:20 +0530, Munagala Naresh said:
>
> > We are integrating one sensor driver in to LE platform. After adding
> sensor
> > driver, it is creating device @ /sys/bus/iio/devices/iio:device0,1,2.
>
> > Sensor driver makes use of IIO subsystem framework. We are not seeing iio
> > device creation @ */dev/iio:device0*,1,2
>
> The kernel is creating your device in /sys.  You need to either get udev
> knowing what
> to do to mknod the /dev entry,  or check if your kernel config has:
>
> CONFIG_DEVTMPFS=y
> CONFIG_DEVTMPFS_MOUNT=y
>
> so the kernel takes care of it for you.
>



-- 
Regards
Naresh Babu
09900139337
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  parent reply	other threads:[~2016-06-01 14:26 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-06-01  2:49 How to enable IIO driver in 3.18 kernel Munagala Naresh
2016-06-01  4:11 ` Valdis.Kletnieks at vt.edu
     [not found]   ` <tencent_70035EF62DF5627F0836F8CD@qq.com>
2016-06-01  4:40     ` Valdis.Kletnieks at vt.edu
2016-06-01  5:58       ` =?gb18030?B?RnJhbmtZdQ==?=
2016-06-01  7:02         ` Valdis.Kletnieks at vt.edu
2016-06-01  7:06           ` =?gb18030?B?RnJhbmtZdQ==?=
2016-06-01 14:26   ` Munagala Naresh [this message]
2016-06-01 14:41     ` Daniel Baluta
2016-06-02  4:24       ` Munagala Naresh

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