Function tamp_compute_min_pattern_size 

pub unsafe extern "C" fn tamp_compute_min_pattern_size(
    window: u8,
    literal: u8,
) -> i8

@brief Compute the minimum viable pattern size given window and literal config parameters.

@param[in] window Number of window bits. Valid values are [8, 15]. @param[in] literal Number of literal bits. Valid values are [5, 8].

@return The minimum pattern size in bytes. Either 2 or 3.