doc: improve spi.h doxygen comments layout #1424
Merged
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Doxygen comments for documenting structs have (known) issues,
and the Breathe addon for Sphinx used to create our API docs
has a known issue with forcing line breaks with @n or
<br/>This patch tweaks the comments to use a method used in i2s.h
to use @param comments for the members of a struct, and using
4 leading spaces (as done in i2s.h as well) to create a pre
block for the bit-field layout comments.
Fixes: #1415
Signed-off-by: David B. Kinder [email protected]