From c4f0c6936762ecd6b453275611a785dfdee0d417 Mon Sep 17 00:00:00 2001 From: Lars-Peter Clausen Date: Tue, 20 Nov 2012 13:36:00 +0000 Subject: [PATCH] iio: Add pressure channel type 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 Signed-off-by: Jonathan Cameron --- 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..2e33dc6 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@vger.kernel.org +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@vger.kernel.org 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@vger.kernel.org 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@vger.kernel.org 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@vger.kernel.org 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@vger.kernel.org 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@vger.kernel.org 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@vger.kernel.org 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@vger.kernel.org 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 { -- 2.7.4