Provide a wrapper around gpiod_line_request_get_chip_name() for C++
bindings and update the tests.
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
We have two functions in the C API that allow users to retrieve a list
of offsets from objects: gpiod_line_request_get_offsets() and
gpiod_line_config_get_offsets(). Even though they serve pretty much the
same purpose, they have different signatures and one of them also
requires the user to free the memory allocated within the libgpiod
library with a non-libgpiod free() function.
Unify them: make them take the array in which to store offsets and the
size of this array. Make them return the number of offsets actually
stored in the array and make them impossible to fail. Change their names
to be more descriptive and in the case of line_config: add a new function
that allows users to get the number of configured offsets.
Update the entire tree to use the new interfaces.
For rust bindings: also unify the line config interface to return a map
of line settings like C++ bindings do instead of having a function to
get settings by offset. A map returned from a single call is easier to
iterate over with a for loop than using an integer and calling the
previous line_settings() method.
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
We explicitly resolve all global C symbols from libgpiod to the top-level
namespace. Fix it wherever its missing (mostly for C enum types).
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
The read_edge_event() family of functions should actually be called
read_edge_events() as they universally allow to read more than one
event. We're converting wait_edge_event() too for consistency.
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Use enum types explicitly across the entire C API. Modern compilers can
catch some bugs with enums and it also helps IDEs and general readability.
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
[Viresh: make rust bindings work with negative enum values]
Co-authored-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
This commit is the result of a squash of all the commits created during
the development of libgpiod v2. This is done to preserve bisectability
of the git tree. It contains significant re-writes of the core C library
as well as C++ and python bindings. The tools have been adjusted to work
with the new API but have not undergone significant changes yet.
This commit contains the bulk of the work on libgpiod v2 but the
development continues with more changes planned.
Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
[Ben: fix format specifier for uint64_t]
Signed-off-by: Ben Hutchings <ben.hutchings@mind.be>
[Viresh: Fix ioctl number for gpiod_line_request_reconfigure_lines()]
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
[Kent: bug fixes, improvements, better pointer contracts, type strictness]
Signed-off-by: Kent Gibson <warthog618@gmail.com>
