Update the Hameg/Rohde&Schwarz HMO driver (hameg-hmo) so that it
is possible to configure the logic threshold for digital signals.
The user can get or set the logic threshold configuration using
the channel group POD0 (and/or POD1 where available), for example:
sigrok-cli --driver hameg-hmo --get logic_threshold -g POD0
sigrok-cli --driver hameg-hmo --config logic_threshold=TTL --set -g POD0
sigrok-cli --driver hameg-hmo --get logic_threshold_custom -g POD0
sigrok-cli --driver hameg-hmo --config logic_threshold_custom=0.7 --set -g POD0
../include/libsigrok/libsigrok.h:653:19: warning: result of ‘1 << 31’ requires 33 bits to represent, but ‘int’ only has 32 bits [-Wshift-overflow=]
SR_CONF_GET = (1 << 31),
^~
[...]
When a meter display 105.2 kΩ, libsigrok will return 105200 Ω
but it is really valuable to know that the last 2 digits are not
significant, so encoding.digits should be set to -2.
This would allow a sigrok client to display 105200 as 105.2 k
instead of 105.200 k.
On the high-end bench multimeters, resistance can be measured with a
kelvin connection as well as the more common two wire method. Provide
a flag which can indicate if four-wire mode is used.
High precision multimeters have a special setting, called "number of
powerline cycles" (NPLC) which determines the integration time of the
ADC in terms of the power line period. Some devices need their NPLC
adjusted from the default value before they can measure at their full
rated precision.
Introduce a new API function sr_session_stopped_callback_set()
which can be used to receive notification when a session stops
running. This allows applications to integrate libsigrok event
processing with their own main loop, instead of blocking in
sr_session_run().
The resource API provides a generic means for accessing resources
that are bundled with sigrok, such as device firmware files. Since
the manner of resource bundling is platform-dependent, users of
libsigrok may override the functions used to open, close and read
a resource. The default implementation accesses resources as files
located in one of the XDG data directories or a directory defined
at compile time.
The need to make this a list no longer applies.
SR_T_MQ is thus a type consisting of a tuple with two elements: the first
item is the MQ (type G_VARIANT_TYPE_UINT32), and the second is the MQ
flags value (G_VARIANT_TYPE_UINT64).
- SR_MQ_MASS: Mass, as measured by scales / balances.
- SR_UNIT_*: Various units of mass.
- SR_MQFLAG_UNSTABLE: A flag denoting that a value has not
yet stabilized (settled). E.g. when placing an object on a scale
it'll take a few moments until a stable reading is available.
Measurement values marked with SR_MQFLAG_UNSTABLE denote that they
are "unsettled", unstable values (not yet stabilized).
The absence of SR_MQFLAG_UNSTABLE denotes that the value is stable.
- SR_CONF_SCALE: A device class for weighing scales / balances.
This type consists of an array, with each item a two-member tuple,
representing an MQ/MQflags pair: the first item is the MQ (type
G_VARIANT_TYPE_UINT32), and the second is the MQ flags value
(G_VARIANT_TYPE_UINT64).
A GVariant of type SR_T_MQLIST can thus always represent more than
one MQ/MQflag pair.
The tables defined with this struct can now be used for information
on items other than config keys.
Functions to access these tables have been renamed sr_key_info_[name_]get.
These take an extra argument, keytype, which should be set to SR_KEY_CONFIG
to get the config key tables. Other key types will be added.
Move the include flags for files in the source tree from
configure.ac to Makefile.am where they belong. Also use
AM_CPPFLAGS instead of CFLAGS/CXXFLAGS to make sure the
files in the build/source tree are always picked up first.
Also, remove the include/libsigrok sub-directory from the
search path, thereby making the <libsigrok/> prefix mandatory
when building libsigrok itself. This matches the convention
already imposed on users of the library.
Frank Stettner
Uwe Hermann
Guido Trentalancia
Andrej Valek
Gerhard Sittig
Aurelien Jacobs
Alexandru Gagniuc
Martin Ling
Tilman Sauerbeck
Daniel Elstner
Bert Vermeulen
Soeren Apel