[libgpiod][PATCH 0/5] core: provide information about the parent chip in line requests

[Bartosz Golaszewski <brgl@bgdev.pl>]

From: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

While working on the DBus API, it occurred to me that while we can obtain
the list of requested offsets from a line request, this information lacks
context if we cannot get any information about the parent chip on which
the request was made.

We cannot reference the chip in any way as its lifetime is disconnected
from the request but we can at least provide the path to the character
device used to open it as a way of providing some context for the offsets.

This series adds a new getter for struct gpiod_line_request and wrappers
for it for all bindings. This will be used in the upcoming DBus GPIO
manager code.

Bartosz Golaszewski (5):
  core: provide gpiod_line_request_get_chip_path()
  tests: add a test-case for gpiod_line_request_get_chip_path()
  bindings: cxx: provide line_request::chip_path()
  bindings: python: provide the chip_path property in line_request
  bindings: rust: provide LineRequest::chip_path()

 bindings/cxx/gpiodcxx/line-request.hpp       |  7 +++++++
 bindings/cxx/line-request.cpp                | 10 +++++++++-
 bindings/cxx/tests/tests-line-request.cpp    |  6 ++++--
 bindings/python/gpiod/chip.py                |  1 +
 bindings/python/gpiod/line_request.py        | 12 +++++++++--
 bindings/python/tests/tests_line_request.py  | 13 +++++++-----
 bindings/rust/libgpiod/src/line_request.rs   | 12 +++++++++++
 bindings/rust/libgpiod/tests/line_request.rs | 13 ++++++++++++
 include/gpiod.h                              |  9 +++++++++
 lib/chip.c                                   |  2 +-
 lib/internal.h                               |  3 ++-
 lib/line-request.c                           | 20 ++++++++++++++++++-
 tests/tests-line-request.c                   | 21 ++++++++++++++++++++
 13 files changed, 116 insertions(+), 13 deletions(-)

-- 
2.39.2