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| Started by | Matt Ranostay <mranostay@gmail.com> |
|---|---|
| First post | 2015-09-07 04:40 +0200 |
| Last post | 2015-09-07 04:50 +0200 |
| Articles | 3 — 1 participant |
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[RFC v2 0/4] iio: new chemical sensor framework and channel types Matt Ranostay <mranostay@gmail.com> - 2015-09-07 04:40 +0200
[RFC v2 1/4] iio: chemical: Add IIO_CONCENTRATION channel type Matt Ranostay <mranostay@gmail.com> - 2015-09-07 04:40 +0200
[RFC v2 2/4] iio: resistance: add IIO_RESISTANCE channel type Matt Ranostay <mranostay@gmail.com> - 2015-09-07 04:50 +0200
| From | Matt Ranostay <mranostay@gmail.com> |
|---|---|
| Date | 2015-09-07 04:40 +0200 |
| Subject | [RFC v2 0/4] iio: new chemical sensor framework and channel types |
| Message-ID | <q5UvE-Hs-5@gated-at.bofh.it> |
Changes from RFC v1: * Removed IIO_MOD_PPM/PPB modifiers * Fixed issues with driver that would have caused null readings * Return IIO_VAL_INT_PLUS_MICRO/IIO_VAL_INT_PLUS_NANO for CO2 and VOC channel readings * Return IIO_VAL_INT_PLUS_MICRO for IIO_CHAN_INFO_OFFSET * Add sysfs-bus-iio-chemical-vz89x documentation Matt Ranostay (4): iio: chemical: Add IIO_CONCENTRATION channel type iio: resistance: add IIO_RESISTANCE channel type devicetree: add SGX Sensortech vendor id iio: chemical: add SGX VZ89x VOC sensor support Documentation/ABI/testing/sysfs-bus-iio | 14 ++ .../ABI/testing/sysfs-bus-iio-chemical-vz89x | 30 +++ .../devicetree/bindings/i2c/trivial-devices.txt | 1 + .../devicetree/bindings/vendor-prefixes.txt | 1 + drivers/iio/Kconfig | 1 + drivers/iio/Makefile | 1 + drivers/iio/chemical/Makefile | 6 + drivers/iio/chemical/vz89x.c | 236 +++++++++++++++++++++ drivers/iio/industrialio-core.c | 2 + include/uapi/linux/iio/types.h | 2 + 10 files changed, 294 insertions(+) create mode 100644 Documentation/ABI/testing/sysfs-bus-iio-chemical-vz89x create mode 100644 drivers/iio/chemical/Makefile create mode 100644 drivers/iio/chemical/vz89x.c -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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| From | Matt Ranostay <mranostay@gmail.com> |
|---|---|
| Date | 2015-09-07 04:40 +0200 |
| Subject | [RFC v2 1/4] iio: chemical: Add IIO_CONCENTRATION channel type |
| Message-ID | <q5UvE-Hs-9@gated-at.bofh.it> |
| In reply to | #1219900 |
There are air quality sensors that report data back in parts per million
of VOC (Volatile Organic Compounds) which are usually indexed from CO2
or another common pollutant.
This patchset adds an IIO_CONCENTRATION type that returns a percentage
of substance because no other channels types fit this use case.
Signed-off-by: Matt Ranostay <mranostay@gmail.com>
---
Documentation/ABI/testing/sysfs-bus-iio | 7 +++++++
drivers/iio/industrialio-core.c | 1 +
include/uapi/linux/iio/types.h | 1 +
3 files changed, 9 insertions(+)
diff --git a/Documentation/ABI/testing/sysfs-bus-iio b/Documentation/ABI/testing/sysfs-bus-iio
index 42d360f..48080b7 100644
--- a/Documentation/ABI/testing/sysfs-bus-iio
+++ b/Documentation/ABI/testing/sysfs-bus-iio
@@ -1459,3 +1459,10 @@ Description:
measurements and return the average value as output data. Each
value resulted from <type>[_name]_oversampling_ratio measurements
is considered as one sample for <type>[_name]_sampling_frequency.
+
+What: /sys/bus/iio/devices/iio:deviceX/in_concentration_raw
+What: /sys/bus/iio/devices/iio:deviceX/in_concentrationX_raw
+KernelVersion: 4.3
+Contact: linux-iio@vger.kernel.org
+Description:
+ Raw (unscaled no offset etc.) precentage reading of a substance.
diff --git a/drivers/iio/industrialio-core.c b/drivers/iio/industrialio-core.c
index b3fcc2c..58a60a1 100644
--- a/drivers/iio/industrialio-core.c
+++ b/drivers/iio/industrialio-core.c
@@ -75,6 +75,7 @@ static const char * const iio_chan_type_name_spec[] = {
[IIO_ENERGY] = "energy",
[IIO_DISTANCE] = "distance",
[IIO_VELOCITY] = "velocity",
+ [IIO_CONCENTRATION] = "concentration",
};
static const char * const iio_modifier_names[] = {
diff --git a/include/uapi/linux/iio/types.h b/include/uapi/linux/iio/types.h
index 2f8b117..c5a0e3f 100644
--- a/include/uapi/linux/iio/types.h
+++ b/include/uapi/linux/iio/types.h
@@ -35,6 +35,7 @@ enum iio_chan_type {
IIO_ENERGY,
IIO_DISTANCE,
IIO_VELOCITY,
+ IIO_CONCENTRATION,
};
enum iio_modifier {
--
1.9.1
--
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| From | Matt Ranostay <mranostay@gmail.com> |
|---|---|
| Date | 2015-09-07 04:50 +0200 |
| Subject | [RFC v2 2/4] iio: resistance: add IIO_RESISTANCE channel type |
| Message-ID | <q5UFk-SF-7@gated-at.bofh.it> |
| In reply to | #1219900 |
Signed-off-by: Matt Ranostay <mranostay@gmail.com>
---
Documentation/ABI/testing/sysfs-bus-iio | 7 +++++++
drivers/iio/industrialio-core.c | 1 +
include/uapi/linux/iio/types.h | 1 +
3 files changed, 9 insertions(+)
diff --git a/Documentation/ABI/testing/sysfs-bus-iio b/Documentation/ABI/testing/sysfs-bus-iio
index 48080b7..0f683ed 100644
--- a/Documentation/ABI/testing/sysfs-bus-iio
+++ b/Documentation/ABI/testing/sysfs-bus-iio
@@ -1466,3 +1466,10 @@ KernelVersion: 4.3
Contact: linux-iio@vger.kernel.org
Description:
Raw (unscaled no offset etc.) precentage reading of a substance.
+
+What: /sys/bus/iio/devices/iio:deviceX/in_resistance_raw
+What: /sys/bus/iio/devices/iio:deviceX/in_resistanceX_raw
+KernelVersion: 4.3
+Contact: linux-iio@vger.kernel.org
+Description:
+ Raw (unscaled no offset etc.) resistance reading in ohms.
diff --git a/drivers/iio/industrialio-core.c b/drivers/iio/industrialio-core.c
index 58a60a1..d61a363 100644
--- a/drivers/iio/industrialio-core.c
+++ b/drivers/iio/industrialio-core.c
@@ -76,6 +76,7 @@ static const char * const iio_chan_type_name_spec[] = {
[IIO_DISTANCE] = "distance",
[IIO_VELOCITY] = "velocity",
[IIO_CONCENTRATION] = "concentration",
+ [IIO_RESISTANCE] = "resistance",
};
static const char * const iio_modifier_names[] = {
diff --git a/include/uapi/linux/iio/types.h b/include/uapi/linux/iio/types.h
index c5a0e3f..d58319c 100644
--- a/include/uapi/linux/iio/types.h
+++ b/include/uapi/linux/iio/types.h
@@ -36,6 +36,7 @@ enum iio_chan_type {
IIO_DISTANCE,
IIO_VELOCITY,
IIO_CONCENTRATION,
+ IIO_RESISTANCE,
};
enum iio_modifier {
--
1.9.1
--
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