On 11/20/2012 01:36 PM, Lars-Peter Clausen wrote:
> This patch adds support for a new IIO channel type for pressure measurements.
> This can for example be used for barometric pressure sensors.
>
> Signed-off-by: Lars-Peter Clausen <lars@xxxxxxxxxx>
Whilst we have had quite a few pressure drivers mentioned, it is nice
to finally see one turn up!
added to togreg branch of iio.git
> ---
> Documentation/ABI/testing/sysfs-bus-iio | 24 ++++++++++++++++++++++++
> drivers/iio/industrialio-core.c | 1 +
> include/linux/iio/types.h | 1 +
> 3 files changed, 26 insertions(+)
>
> diff --git a/Documentation/ABI/testing/sysfs-bus-iio b/Documentation/ABI/testing/sysfs-bus-iio
> index 2f06d40..f08d0f7 100644
> --- a/Documentation/ABI/testing/sysfs-bus-iio
> +++ b/Documentation/ABI/testing/sysfs-bus-iio
> @@ -189,6 +189,14 @@ Description:
> A computed peak value based on the sum squared magnitude of
> the underlying value in the specified directions.
>
> +What: /sys/bus/iio/devices/iio:deviceX/in_pressureY_raw
> +What: /sys/bus/iio/devices/iio:deviceX/in_pressure_raw
> +KernelVersion: 3.8
> +Contact: linux-iio@xxxxxxxxxxxxxxx
> +Description:
> + Raw pressure measurement from channel Y. Units after
> + application of scale and offset are kilopascal.
> +
> What: /sys/bus/iio/devices/iio:deviceX/in_accel_offset
> What: /sys/bus/iio/devices/iio:deviceX/in_accel_x_offset
> What: /sys/bus/iio/devices/iio:deviceX/in_accel_y_offset
> @@ -197,6 +205,8 @@ What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_offset
> What: /sys/bus/iio/devices/iio:deviceX/in_voltage_offset
> What: /sys/bus/iio/devices/iio:deviceX/in_tempY_offset
> What: /sys/bus/iio/devices/iio:deviceX/in_temp_offset
> +What: /sys/bus/iio/devices/iio:deviceX/in_pressureY_offset
> +What: /sys/bus/iio/devices/iio:deviceX/in_pressure_offset
> KernelVersion: 2.6.35
> Contact: linux-iio@xxxxxxxxxxxxxxx
> Description:
> @@ -226,6 +236,8 @@ What: /sys/bus/iio/devices/iio:deviceX/in_magn_scale
> What: /sys/bus/iio/devices/iio:deviceX/in_magn_x_scale
> What: /sys/bus/iio/devices/iio:deviceX/in_magn_y_scale
> What: /sys/bus/iio/devices/iio:deviceX/in_magn_z_scale
> +What: /sys/bus/iio/devices/iio:deviceX/in_pressureY_scale
> +What: /sys/bus/iio/devices/iio:deviceX/in_pressure_scale
> KernelVersion: 2.6.35
> Contact: linux-iio@xxxxxxxxxxxxxxx
> Description:
> @@ -245,6 +257,8 @@ What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_y_calibbias
> What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_z_calibbias
> What: /sys/bus/iio/devices/iio:deviceX/in_illuminance0_calibbias
> What: /sys/bus/iio/devices/iio:deviceX/in_proximity0_calibbias
> +What: /sys/bus/iio/devices/iio:deviceX/in_pressureY_calibbias
> +What: /sys/bus/iio/devices/iio:deviceX/in_pressure_calibbias
> KernelVersion: 2.6.35
> Contact: linux-iio@xxxxxxxxxxxxxxx
> Description:
> @@ -262,6 +276,8 @@ What /sys/bus/iio/devices/iio:deviceX/in_anglvel_y_calibscale
> What /sys/bus/iio/devices/iio:deviceX/in_anglvel_z_calibscale
> what /sys/bus/iio/devices/iio:deviceX/in_illuminance0_calibscale
> what /sys/bus/iio/devices/iio:deviceX/in_proximity0_calibscale
> +What: /sys/bus/iio/devices/iio:deviceX/in_pressureY_calibscale
> +What: /sys/bus/iio/devices/iio:deviceX/in_pressure_calibscale
> KernelVersion: 2.6.35
> Contact: linux-iio@xxxxxxxxxxxxxxx
> Description:
> @@ -275,6 +291,8 @@ What: /sys/.../iio:deviceX/in_voltage-voltage_scale_available
> What: /sys/.../iio:deviceX/out_voltageX_scale_available
> What: /sys/.../iio:deviceX/out_altvoltageX_scale_available
> What: /sys/.../iio:deviceX/in_capacitance_scale_available
> +What: /sys/.../iio:deviceX/in_pressure_scale_available
> +What: /sys/.../iio:deviceX/in_pressureY_scale_available
> KernelVersion: 2.6.35
> Contact: linux-iio@xxxxxxxxxxxxxxx
> Description:
> @@ -694,6 +712,8 @@ What: /sys/.../buffer/scan_elements/in_voltageY_en
> What: /sys/.../buffer/scan_elements/in_voltageY-voltageZ_en
> What: /sys/.../buffer/scan_elements/in_incli_x_en
> What: /sys/.../buffer/scan_elements/in_incli_y_en
> +What: /sys/.../buffer/scan_elements/in_pressureY_en
> +What: /sys/.../buffer/scan_elements/in_pressure_en
> KernelVersion: 2.6.37
> Contact: linux-iio@xxxxxxxxxxxxxxx
> Description:
> @@ -707,6 +727,8 @@ What: /sys/.../buffer/scan_elements/in_voltageY_type
> What: /sys/.../buffer/scan_elements/in_voltage_type
> What: /sys/.../buffer/scan_elements/in_voltageY_supply_type
> What: /sys/.../buffer/scan_elements/in_timestamp_type
> +What: /sys/.../buffer/scan_elements/in_pressureY_type
> +What: /sys/.../buffer/scan_elements/in_pressure_type
> KernelVersion: 2.6.37
> Contact: linux-iio@xxxxxxxxxxxxxxx
> Description:
> @@ -751,6 +773,8 @@ What: /sys/.../buffer/scan_elements/in_magn_z_index
> What: /sys/.../buffer/scan_elements/in_incli_x_index
> What: /sys/.../buffer/scan_elements/in_incli_y_index
> What: /sys/.../buffer/scan_elements/in_timestamp_index
> +What: /sys/.../buffer/scan_elements/in_pressureY_index
> +What: /sys/.../buffer/scan_elements/in_pressure_index
> KernelVersion: 2.6.37
> Contact: linux-iio@xxxxxxxxxxxxxxx
> Description:
> diff --git a/drivers/iio/industrialio-core.c b/drivers/iio/industrialio-core.c
> index 060a404..3dccd6c 100644
> --- a/drivers/iio/industrialio-core.c
> +++ b/drivers/iio/industrialio-core.c
> @@ -65,6 +65,7 @@ static const char * const iio_chan_type_name_spec[] = {
> [IIO_CAPACITANCE] = "capacitance",
> [IIO_ALTVOLTAGE] = "altvoltage",
> [IIO_CCT] = "cct",
> + [IIO_PRESSURE] = "pressure",
> };
>
> static const char * const iio_modifier_names[] = {
> diff --git a/include/linux/iio/types.h b/include/linux/iio/types.h
> index 87b196a..88bf0f0 100644
> --- a/include/linux/iio/types.h
> +++ b/include/linux/iio/types.h
> @@ -28,6 +28,7 @@ enum iio_chan_type {
> IIO_CAPACITANCE,
> IIO_ALTVOLTAGE,
> IIO_CCT,
> + IIO_PRESSURE,
> };
>
> enum iio_modifier {
>
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