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From: Bharath Vedartham <linux.bhar@gmail.com>
To: kernelnewbies@kernelnewbies.org
Subject: drivers: iio: Adding channels to the simple_dummy module
Date: Tue, 22 Jan 2019 23:33:18 +0530	[thread overview]
Message-ID: <20190122180318.GA21439@bhar.linux> (raw)

Hey everyone,

I am trying to get started with the IIO subsystem by doing the following tasks:

https://kernelnewbies.org/IIO_tasks

In task 3, which requires us to add 3 channels to the dummy_device, I
have added the structures in the dummy_channels array(which is of type
struct chan_spec), similar to the other channels in the dummy_channels
array.(in file drivers/iio/dummy/iio_simple_dummy.c)

I also added elements to the enum iio_simple_dummy_scan_elements for the
scan_index val.(in iio_simple_dummy.h)

I recompiled the kernel and loaded the modules iio_dummy and
iio_dummy_evgen using modprobe.

is the right approach. I am not able to see any new channels being
added to my /sys/bus/iio/devices/iio:device0/ directory?

printk is not printing to dmesg. I put printk in the probe function

Thank you,
Bharath

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             reply	other threads:[~2019-01-22 18:03 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-01-22 18:03 Bharath Vedartham [this message]
2019-01-23 11:06 ` drivers: iio: Adding channels to the simple_dummy module Himanshu Jha
2019-01-23 17:58   ` Bharath Vedartham
2019-01-24 10:51     ` Himanshu Jha
2019-01-25 11:41       ` Bharath Vedartham
2019-01-25 16:24         ` valdis.kletnieks
2019-01-26  6:42           ` Bharath Vedartham
2019-01-26 18:39             ` valdis.kletnieks

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