Change Log
v0.3.0
-
Changed the function signature of
pifacedigital_wait_for_input().
There was a bug with the old function in that it would return 0 on
both a possible valid interrupt state and a timeout. It was impossible
to determine which caused the blocking function to return. To remedy
this the function now returns a status code and the interrupted input
state is stored at the data pointer provided. This will break existing
code using this library and programs using this function will need to
be updated. It is trivial to update the function call:uint8_t data = pifacedigital_wait_for_input(10, 0);turns to:
uint8_t data; int status = pifacedigital_wait_for_input(&data, 10, 0);