add pyserial to the package requirements
-rw-r--r-- 44 .gitignore
-rw-r--r-- 710 .gitmodules
-rw-r--r-- 1711 LICENSE
-rw-r--r-- 169 MANIFEST.in
-rw-r--r-- 2526 README
drwxr-xr-x - doc
drwxr-xr-x - litex
-rwxr-xr-x 1319 setup.py
drwxr-xr-x - test