RE: [PATCH 1/1] iio: ak8975: Add Ak8975 magnetometer sensor

From: Datta, Shubhrajyoti
Date: Mon Sep 06 2010 - 04:18:15 EST




> -----Original Message-----
> From: linux-iio-owner@xxxxxxxxxxxxxxx [mailto:linux-iio-
> owner@xxxxxxxxxxxxxxx] On Behalf Of achew@xxxxxxxxxx
> Sent: Friday, September 03, 2010 5:11 AM
> To: linux-kernel@xxxxxxxxxxxxxxx; linux-iio@xxxxxxxxxxxxxxx; linux-
> i2c@xxxxxxxxxxxxxxx
> Cc: akpm@xxxxxxxxxxxxxxxxxxxx; khali@xxxxxxxxxxxx; ldewangan@xxxxxxxxxx;
> Andrew Chew
> Subject: [PATCH 1/1] iio: ak8975: Add Ak8975 magnetometer sensor
>
> From: Andrew Chew <achew@xxxxxxxxxx>
>
> This is for the Asahi Kasei AK8975 3-axis magnetometer. It resides within
> the magnetometer section of the IIO subsystem, and implements the raw
> magn_x,y,z attributes, as well as x,y,z factory calibration attributes.
>
Could you help me with the datasheet details.
> Signed-off-by: Andrew Chew <achew@xxxxxxxxxx>
> ---
> drivers/staging/iio/magnetometer/Kconfig | 11 +
> drivers/staging/iio/magnetometer/Makefile | 1 +
> drivers/staging/iio/magnetometer/ak8975.c | 521
> +++++++++++++++++++++++++++++
> 3 files changed, 533 insertions(+), 0 deletions(-)
> create mode 100644 drivers/staging/iio/magnetometer/ak8975.c
>
> diff --git a/drivers/staging/iio/magnetometer/Kconfig
> b/drivers/staging/iio/magnetometer/Kconfig
> index d014450..00e1204 100644
> --- a/drivers/staging/iio/magnetometer/Kconfig
> +++ b/drivers/staging/iio/magnetometer/Kconfig
> @@ -3,6 +3,17 @@
> #
> comment "Magnetometer sensors"
>
> +config SENSORS_AK8975
> + tristate "Asahi Kasei AK8975 3-Axis Magnetometer"
> + default n
Default is anyways n however does no harm.
> + depends on I2C
> + help
> + Say yes here to build support for Asahi Kasei AK8975 3-Axis
> + Magnetometer.
> +
> + To compile this driver as a module, choose M here: the module
> + will be called ak8975.
> +
> config SENSORS_HMC5843
> tristate "Honeywell HMC5843 3-Axis Magnetometer"
> depends on I2C
> diff --git a/drivers/staging/iio/magnetometer/Makefile
> b/drivers/staging/iio/magnetometer/Makefile
> index f9bfb2e..e3dbaa4 100644
> --- a/drivers/staging/iio/magnetometer/Makefile
> +++ b/drivers/staging/iio/magnetometer/Makefile
> @@ -2,4 +2,5 @@
> # Makefile for industrial I/O Magnetometer sensors
> #
>
> +obj-$(CONFIG_SENSORS_AK8975) := ak8975.o

Was the : intentional

> obj-$(CONFIG_SENSORS_HMC5843) += hmc5843.o
> diff --git a/drivers/staging/iio/magnetometer/ak8975.c
> b/drivers/staging/iio/magnetometer/ak8975.c
> new file mode 100644
> index 0000000..ca39840
> --- /dev/null
> +++ b/drivers/staging/iio/magnetometer/ak8975.c
> @@ -0,0 +1,521 @@
> +/*
> + * A sensor driver for the magnetometer AK8975.
--
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