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v1-3-0-2022-02-21
v1.3.0 - 2022-02-21

Updates
- Add transfer!/2. This function is the raising version of transfer/2. Thanks to @mnishiguchi for this.

Updates
- Add the :lsb_first option to support SPI transfers that send the least significant bit first rather than the most significant one. If the bit reversal isn't supported by the hardware, a software version is used.
- Add config/1 to return the configuration for an SPI bus reference. This is useful for checking what is actually being used.
- Update transfer/2 to support iodata. This makes the interface more convenient since now you can prepend SPI message headers in your code without having to concatenate binaries.
- Support full pathes being passed to SPI devices in open/2. Previously this resulted in errors, but it was easy to forget.

Updates
- Add max_transfer_size/0 to return the low level maximum size that can be sent at a time. Thanks to @cocoa-xu for this.
Bug fixes
- Properly mark NIF transfer function as IO bound so that the Erlang scheduler schedules it properly.

This release only changes the version number. No code has changed.

This release only has doc and build output cleanup. No code has changed.

Bug fixes
- Add -fPIC to compilation flags to fix build with nerves_system_x86_64 and other environments using the Musl C toolchains

This release doesn't functionally change any code. The only updates are to build files for consistency with other Circuits projects.

Bug fixes
- Fix binary handling in NIF. This fixes segfaults and other errors on Raspbian.

Bug fixes
- Fix file handle leak when SPI bus references were garbage collected.

Bug fixes
- Build C source under the _build directory so that changing targets properly rebuilds the C code as well as the Elixir code.

Initial release to hex.