CRC.ccitt_16

You're seeing just the function ccitt_16, go back to CRC module for more information.

ccitt_16(input)

ccitt_16(binary()) :: number()

Calculates a 16-bit CCITT CRC with the given seed, seed defaults to 0xFFFF if one is not given.

This CCIT method uses a 0x1021 polynomial.

ccitt_16(binary(), number()) :: number()