PPP support for sync tty ports

modulename: ppp_synctty.ko

configname: CONFIG_PPP_SYNC_TTY

Linux Kernel Configuration
└─>Device Drivers
└─>Network device support
└─>PPP support for sync tty ports
In linux kernel since version 2.6.12  
Say Y (or M) here if you want to be able to use PPP over synchronous
(HDLC) tty devices, such as the SyncLink adapter. These devices
are often used for high-speed leased lines like T1/E1.

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

source code: