Framer Subsystem

configname: CONFIG_FRAMER

Linux Kernel Configuration
└─>Device Drivers
└─>Network device support
└─>Wan interfaces support
└─>Framer Subsystem
In linux kernel since version 6.8 (release Date: 2024-03-10)  
A framer is a component in charge of an E1/T1 line interface.
Connected usually to a TDM bus, it converts TDM frames to/from E1/T1
frames. It also provides information related to the E1/T1 line.
Used with HDLC, the network can be reached through the E1/T1 line.

This framework is designed to provide a generic interface for framer
devices present in the kernel. This layer will have the generic
API by which framer drivers can create framer using the framer
framework and framer users can obtain reference to the framer.
All the users of this framework should select this config.