Merge pull request #4 from MelvinTo/bugfix

increase buffer size for safety

Merge pull request #3 from MelvinTo/bugfix

support auto disconnecting idle devices

Merge pull request #2 from MelvinTo/bugfix

do not share tx buffer between connections

Merge pull request #1 from MelvinTo/patch

Patch

BUG: fd not closed on error

bug fix

make addr as a pointer

add Address api

hide logs

bug fix