Write a single byte via SPI

Safe extractors

Helper: clamp float to 0..1

Clean up the r1 register after a series of *LEAVING_R1_DIRTY calls (no-op for ATtiny C implementations)

For testing: clear all tasks

@brief Create mock peripheral as shared_ptr

@brief Reset mock state between tests

Made public for testing with UCS7604Controller which uses composition

Pulses 7,6,5,4 of v (byte j = bit (7-j)). Depends only on the high nibble.

Pulses 3,2,1,0 of v (byte j = bit (3-j)). Depends only on the low nibble.

Helper: wrap a C string as a span for feed()

16-bit easing functions

Parse CLI args, validate modes, build JSON-RPC command list. Pure computation — no hardware I/O. Returns RunContext on success, int exit code

Reinterpret u32 as i32 for readability

Check if Promise is valid

Get an option value from a section. Args: section: Section name option: Option name fallback: De

@brief Check if channel data is currently in use by the driver @return true if driver is transmitting this data, false otherwise

Check if Promise is completed (resolved or rejected)

Check if any holder exists for this lock. Args: lock_name: Name identifying the lock Returns: True if any pr

Size of the bitset_fixed (number of bits).

Create a default UART test configuration at 4.0 Mbps

Capacity

@brief Default constructor - creates an empty queue

Terminate the process.

Helper: run check_needs_update with default include pattern.

Helper function to calculate average color difference between two frames

Check the file content and return any issues found. Args: file_content: FileContent object containing path, content, and lines

Helper to create a pixel in BGR wire order

Add an element to the end of the vector

Wait for driver to become READY; returns false on timeout