June 2026 performance summary for analogdevicesinc/libiio. Delivered core data model improvements with immutability, expanded C# build integration, and strengthened documentation CI—collectively delivering safer APIs, faster lookups, and more reliable docs deployment, aligning with CI/CD best practices and developer experience goals.

May 2026 monthly summary focusing on portability, robustness, and developer productivity across libiio and pyadi-iio. The work delivered improved cross‑platform support, multi‑buffer capabilities, and enhanced bindings and tests, aligning with business goals of stability, performance, and faster onboarding for device developers. Key features delivered: - EMU backend: XML context metadata parsing implemented to read version and description from XML and gracefully default when missing (commit 596daa6cf8b4b601896c19368c98f54e8e1738d6). - Buffer naming: EMU now uses device names for buffer filenames (e.g., ad9361-phy) where available (commit f70c1384ca378e2150e6f2e027b94498632de17b). - Local/prefix backend params: Forward parameters to local and prefix backends to preserve default_params behaviors in XML generation (commit 5e32d5deff303ba7b0aceaab1318b9f3f7b8eaf3). - Cross‑platform IO: Added iio_fopen() wrapper and migrated code to use it across emu, iio_attr, and gen_code to eliminate MSVC-specific fopen/#ifdef blocks (commits e93496c238d8224d439fa48c74a4727d6914e21c and 4cc1ac78fafae04533d90c7f973efd7a38b88dd2). - Multi‑buffer support and codegen: Enabled multi-buffer handling in EMU, extended iio_attr and gen_code to support buffer_index, and added Python/CPP/C# bindings for buffer scan element access to reflect per‑buffer channels (EMU: aa50c16e7b8ea6eb518f051c33a2345c38acce98; iio_attr: 85e9c88d2188486c66a3e79195f91cbcbc342a48; gen_code: 278a9999f2edce1956d4539caa3c959ffc6f54c6; bindings: 4ab5e9c99a45ec4e37dcbdca36190827e9e68c2e, f33c9132c85ab5c96f0317429bfcfb130b7aa5d8, 6c117cda8b718af9b6f4428a15858cdd66553b7d). - Bindings improvements: Exposed iio_buffer_get_scan_element APIs in Python, C#, and C++ to allow enumeration of channels per buffer (Python: 4ab5e9c99a45ec4e37dcbdca36190827e9e68c2e; C#: f33c9132c85ab5c96f0317429bfcfb130b7aa5d8; C++: 6c117cda8b718af9b6f4428a15858cdd66553b7d). - CI/tests and docs: Enabled API tests against the emu backend in CI; added test suite documentation and updated CMake feature summaries to include EMU. - CI tests: 823c4f2af1d3074a8a54254c460198367926e553 - Test docs: 16b2daf42fa839120dfcf7301db1148f8fe4f030 - CMake: cd7c46527f95f36d9ec6bef1f8507551ef50bda6 - Codespell: 75f728b7549dd7c951c7455b4246be64dfc44302 - Test infra cleanup: 9cb6c52d048c42a73836bd7613a14bef746fde33 Major bugs fixed: - MSVC build warnings: Include io.h and use fopen_s() on MSVC builds to suppress warnings (commit d5b6e7506e38e3284bb522f43d47ce32a62ea770). - FreeBSD compatibility: Replace ENODATA with EIO to ensure compatibility (commit 0ac657ef153df76bc8c4aa554691f05e68efc348). - Dead prefix-URI path: Remove unused path logic in handle_common_opts to improve code clarity and maintainability (commit b10c0cf4bafd42b28676f3469c2458879e9147fa). - Test infra: Remove redundant pluto.xml and update C# bindings to use fmcomms3.xml for broader coverage (commit 9cb6c52d048c42a73836bd7613a14bef746fde33). - CI: Ensure tests run with emu backend in CI to validate API stability against emulated devices (commit 823c4f2af1d3074a8a54254c460198367926e553). Overall impact and accomplishments: - Improved portability and reliability across Windows, FreeBSD, and Unix-like environments, reducing platform-specific bugs and maintenance burden. - Expanded multi-buffer capabilities and per-buffer scan element access, enabling more realistic and efficient buffer management for devices in both C and Python workflows. - Strengthened CI coverage with emu-based API tests, leading to faster detection of regressions and more robust APIs prior to release. - Strengthened developer experience with a unified cross-platform IO API (iio_fopen), removing scattered MSVC-specific code paths and enabling simpler future extensions. - Expanded documentation and onboarding material, helping new contributors and customers understand test suites and usage patterns. Technologies and skills demonstrated: - C/CMake, MSVC, POSIX, FreeBSD compatibility, Windows file IO nuances (fopen vs fopen_s) - Cross-platform library development and wrapper patterns (iio_fopen, generic wrappers) - Multi-buffer design and code generation patterns in iio_attr and gen_code - Python/C#/C++ bindings for iio_buffer APIs and scan element introspection - XML parsing, EMU backend enhancements, and test automation in CI

April 2026: Completed a set of core libiio improvements that strengthen testing fidelity, reliability, and portability. Key wins include a full emulation backend with XML-based context creation, in-memory DOM attribute access, and per-device register I/O; enhanced buffer handling with generated buffer attributes and file-based RX/TX streaming; and substantial API stability fixes to ensure compiler safety, proper API usage, and reduced log noise. Build and tooling improvements enable opt-in emulation and shared XML discovery, improving cross-platform portability (including Zephyr). Collectively, these changes deliver a robust test harness that accelerates hardware-in-the-loop validation, reduces integration risk, and improves code quality.

March 2026: Delivered a major enhancement to the IIO XML output for analogdevicesinc/libiio by enabling attribute value serialization with configurable inclusion. Implemented a new CLI option (-e) to include attribute values in the generated XML and extended the context option handling to support a flexible flags mechanism. Added a dedicated context parameter (flags) and a first flag IIO_CTX_XML_INCLUDE_VALUES to control value emission during XML generation. Implemented value caching and cleanup around XML generation (for_each_device_read_attrs and free_all_attrs) to ensure correctness and memory safety. Refactored option handling to support passing flags before context creation, and updated the iio_genxml tool to produce clean XML suitable for piping by removing verbose messages. Updated documentation accordingly.

February 2026 monthly summary for analogdevicesinc/libiio: Delivered a major feature enabling robust attribute management across devices, channels, and buffers. Implemented storage of attribute values via new value arrays and synchronized XML header updates to support value attributes. These changes enhance attribute discovery, debugging, and maintainability, reducing troubleshooting time and enabling smoother integrations with external tooling.