MAX31855 driver had a wrong position of sign bits causing
invalid reading of negative temperature values. Fixed by
shifting position of sign bit by one bit.
Signed-off-by: Petr Vilím <petr.vilim@proton.me>
As the C language treats 'cases' similar to 'labels' the following
error can also occur when using switch statements when it encounters
a declaration immediately after a label:
drivers/sensor/maxim/ds3231/ds3231.c:77:3: error: a label can only
be part of a statement and a declaration is not a statement
77 | const uint16_t raw_temp = data->raw_temp;
| ^~~~~
Signed-off-by: Stephan Linz <linz@li-pro.net>
This is a squash of all the groundwork needed to
get a functioning driver for the DS3231 with the RTC API.
Signed-off-by: Gergo Vari <work@gergovari.com>
Fixes type mix-match for rtd temperature calculation. Also changes
coefficient array name for clarity.
Signed-off-by: Maxmillion McLaughlin <max@sorcerer.earth>
Links and the manufacturer name are updated from maxim to analog
for the 1-wire subsystem and the related ds18b20 sensor.
After the acquisition of Maxim Integrated the documentation
of these devices has been moved to the analog.com website.
Redirects exist, so they are not broken yet,
but we should not rely on that.
Signed-off-by: Thomas Stranger <thomas.stranger@outlook.com>
When multiple devices are on the bus, and no slave matches
the sent rom, the master receives only ones.
This should be handled explicitly and the error reporting
should not rely on the crc mismatch of the scratchpad.
Note: Make sure that the sensor configuration is loaded to the
eeprom (copy scratchpad), otherwise the resolution will not match
the expectations in case a node looses power and recovers.
As in that case the configuration will not be applied again.
Also the sensor may still report the power on reset value
of +85°C just after the sensor powered up.
Signed-off-by: Thomas Stranger <thomas.stranger@outlook.com>
After each read of the scratchpad the crc of the data
is checked and in case of a mismatch an error is returned.
Signed-off-by: Thomas Stranger <thomas.stranger@outlook.com>
- Move the content of the header file into the source file,
and drop unnecessary includes.
- Also, drop the bus access function.
Signed-off-by: Thomas Stranger <thomas.stranger@outlook.com>
