[libgpiod][PATCH 01/16] README: update for libgpiod v2

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From: Bartosz Golaszewski <bartosz.golaszewski@xxxxxxxxxx>

Certain parts of the README file still refer to concepts removed from
libgpiod v2. Update whatever needs updating.

Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@xxxxxxxxxx>
---
 README | 32 ++++++++++++++++----------------
 1 file changed, 16 insertions(+), 16 deletions(-)

diff --git a/README b/README
index d51d701..894fc5d 100644
--- a/README
+++ b/README
@@ -1,5 +1,5 @@
 # SPDX-License-Identifier: CC-BY-SA-4.0
-# SPDX-FileCopyrightText: 2017-2021 Bartosz Golaszewski <bartekgola@xxxxxxxxx>
+# SPDX-FileCopyrightText: 2017-2023 Bartosz Golaszewski <brgl@xxxxxxxx>
 
 libgpiod
 ========
@@ -30,14 +30,10 @@ allow an easy conversion of user scripts to using the character device.
 BUILDING
 --------
 
-This is a pretty standard autotools project. It does not depend on any
-libraries other than the standard C library with GNU extensions.
+This is a pretty standard autotools project. The core C library does not have
+any external dependencies other than the standard C library with GNU extensions.
 
-The autoconf version needed to compile the project is 2.61.
-
-Recent kernel headers are also required for the GPIO user API definitions. For
-the exact version of kernel headers required, please refer to the configure.ac
-contents.
+The command-line tools optionally depend on libedit for the interactive feature.
 
 To build the project (including command-line utilities) run:
 
@@ -51,6 +47,8 @@ arguments to it.
 If building from release tarballs, the configure script is already provided and
 there's no need to invoke autogen.sh.
 
+For all configure features, see: ./configure --help.
+
 TOOLS
 -----
 
@@ -231,10 +229,10 @@ interface.
 
 The minimum kernel version required to run the tests can be checked in the
 tests/gpiod-test.c source file (it's subject to change if new features are
-added to the kernel). The tests work together with the gpio-mockup kernel
-module which must be enabled. NOTE: the module must not be built-in. A helper
-library - libgpiomockup - is included to enable straightforward interaction
-with the module.
+added to the kernel). The tests work together with the gpio-sim kernel which
+must either be built-in or available for loading using kmod. A helper
+library - libgpiosim - is included to enable straightforward interaction with
+the module.
 
 To build the testing executable add the '--enable-tests' option when running
 the configure script. If enabled, the tests will be installed next to
@@ -251,12 +249,12 @@ The gpio-tools programs can be tested separately using the gpio-tools-test.bats
 script. It requires bats[1] to run and assumes that the tested executables are
 in the same directory as the script.
 
-Both C++ and Python bindings also include their own test-suites. Both reuse the
-libgpiomockup library to avoid code duplication when interacting with
-gpio-mockup.
+C++, Rust and Python bindings also include their own test-suites. Both reuse the
+libgpiosim library to avoid code duplication when interacting with gpio-sim.
 
 Python test-suite uses the standard unittest package. C++ tests use an external
-testing framework - Catch2 - which must be installed in the system.
+testing framework - Catch2 - which must be installed in the system. Rust
+bindings use the standard tests module layout and the #[test] attribute.
 
 DOCUMENTATION
 -------------
@@ -268,6 +266,8 @@ doxygen markup blocks. Doxygen documentation can be generated by executing
 Python bindings contain help strings that can be accessed with the help
 builtin.
 
+Rust bindings use rustdoc.
+
 Man pages for command-line programs are generated automatically if gpio-tools
 were selected and help2man is available in the system.
 
-- 
2.37.2




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