PPP support for async serial ports

modulename: ppp_async.ko

configname: CONFIG_PPP_ASYNC

Linux Kernel Configuration
└─>Device Drivers
└─>Network device support
└─>PPP support for async serial ports
In linux kernel since version 2.6.12  
Say Y (or M) here if you want to be able to use PPP over standard
asynchronous serial ports, such as COM1 or COM2 on a PC. If you use
a modem (not a synchronous or ISDN modem) to contact your ISP, you
need this option.

To compile this driver as a module, choose M here.

If unsure, say Y.

source code: