Erlang io:formatting a binary to hex

Question

Can I format an Erlang binary so that each byte is written in hex? I.e.,

> io:format(???, [<<255, 16>>]).
<>

Answer 1

bin_to_hex_list(Bin) when is_binary(Bin) ->
  lists:flatten([integer_to_list(X,16) || <> <= Bin]).