IIO mount matrix is supported in kernel version 4.6.
Change mraa_iio_get_mount_matrix to take in one more parameter
‘mount matrix sysfs entry name’, because different sensor driver
may expose different mount matrix sysfs entry.
Following link explain the mount matrix usage and sysfs entry:
https://www.kernel.org/doc/Documentation/ABI/testing/sysfs-bus-iio
Signed-off-by: Lay, Kuan Loon <kuan.loon.lay@intel.com>
Signed-off-by: Brendan Le Foll <brendan.le.foll@intel.com>
As described in issue #91, on Edison setting 0% duty doesn't
disable the PWM on a pin completely.
Therefore we add a couple of Edison-specific _pre functions
and an internal PWM state variable, which we use to toggle PWM
enabled/disabled based on what duty is set for the pin.
Closes#91.
Signed-off-by: Alex Tereschenko <alext.mkrs@gmail.com>
Signed-off-by: Brendan Le Foll <brendan.le.foll@intel.com>
Make better use of unsigned/signed ints, signed ints are preffered unless there
is a good reason not to.
Signed-off-by: Alexandru Timohi <alexandru.timohi@intel.com>
Signed-off-by: Brendan Le Foll <brendan.le.foll@intel.com>
Go through channel array after getting byte mapping to correctly map channel
location. Doing it at the same time as mapping the indexes is unreliable
depending on filename etc...
Signed-off-by: Brendan Le Foll <brendan.le.foll@intel.com>
Partly rollsback f2c4d95c15 which stopped
mraa_i2c_init from switching i2c bus silently. If you don't want this to
happen, you need to use mraa_i2c_init_raw. Closes#497.
Signed-off-by: Brendan Le Foll <brendan.le.foll@intel.com>
This fixes previous broken commit because dev is not defined before
_internal_init but since fp is taken during internal init we need to know the
channel number. This does not affect the internal override API.
Signed-off-by: Brendan Le Foll <brendan.le.foll@intel.com>
Using NPM, this module can be cross-compiled for Android using NDK.
But, when compiling for Android, we need to add glob.c to source files
(as in Android.mk).
Also, re-arranged the layout in binding.gyp for better readability.
Signed-off-by: Robert Chiras <robert.chiras@intel.com>
Signed-off-by: Brendan Le Foll <brendan.le.foll@intel.com>
This commit changes also the _replace function and adds exceptions to the C++
API for errors in AIO read
Signed-off-by: Brendan Le Foll <brendan.le.foll@intel.com>
Enum was deprecated in 0.10.x and causes issues with strict C89 compliance so
is now removed
Signed-off-by: Brendan Le Foll <brendan.le.foll@intel.com>
Edited syslog messages. Changed some return types to used signed and using -1
to indicate errors
Signed-off-by: Martin G Lane-Smith <mlanesmith@gmail.com>
Signed-off-by: Brendan Le Foll <brendan.le.foll@intel.com>
This commit introduces support for Dallas Semiconductor (DS) 1-wire
compliant device support using an available UART device.
The principle of operation is described in the following Application
note by Maxim Electronics:
https://www.maximintegrated.com/en/app-notes/index.mvp/id/214
with help (1-wire search) from:
https://www.maximintegrated.com/en/app-notes/index.mvp/id/187
It has been tested on Galileo 2 and Edison, with 2 DS 1-wire devices,
the DS18B20 and DS2413 connected to the bus. A UPM driver for the
DS2413 is already complete and a PR will be submitted after this one.
It is important that you use a UART with CMOS/TTL level voltages
(3.3v/5v) RX and TX lines. DO NOT use standard RS232 level voltages
or you are going to have a bad day.
In order for this to work, a simple interface circuit, using a single
diode must be constructed:
(forgive my "Asciihematic" :)
-|
U|
A| TX---|<--+
R| |
T| RX-------o--------o 1-wire data bus
-|
The diode on TX is a 1N4148 (cheap and common), with the cathode
connected to TX, and the anode connected to RX and the 1-wire data
line.
The 1-wire data line requires a pull-up resistor, as the DS 1-wire
spec requires. 4.7-5K is typical for DS 1-wire buses.
NOTE: DHT-type (temp/humidity sensor) 1-wire devices ARE NOT DS 1-wire
compliant, and will not work with this code/circuit unfortunately.
Also note, this will use up one of your UARTs, which cannot be used
for any other purpose (ie: to access true UART-type serial devices).
You can however, connect as many DS 1-wire devices as feasible to this
UART, as it will function as a DS 1-wire bus master.
Signed-off-by: Jon Trulson <jtrulson@ics.com>
Signed-off-by: Brendan Le Foll <brendan.le.foll@intel.com>
LIB_SUFFIX is no longer used. Replaced with LIB_INSTALL_DIR
which provides the correct lib dir with arch suffix.
Moved the call to include(GNUInstallDirs) prior to checking the
CMAKE_INSTALL_LIBDIR - which is set by include(GNUInstallDirs).
Tested with cmake 2.8 and cmake 3.5.
Signed-off-by: Noel Eck <noel.eck@intel.com>
Signed-off-by: Brendan Le Foll <brendan.le.foll@intel.com>
We rely on driver-supplied information in mraa_spi_frequency(),
so let's be consistent.
Closes#132.
Signed-off-by: Alex Tereschenko <alext.mkrs@gmail.com>
Signed-off-by: Brendan Le Foll <brendan.le.foll@intel.com>
ioctl() returns -1 on error, or otherwise a value certainly not within the
mraa_result_t enum. Fixes#480.
Signed-off-by: Brendan Le Foll <brendan.le.foll@intel.com>
