Linux kernel LIN bus support implemented as TTY line discipline for generic UART conrollers, documentation https://github.com/lin-bus/linux-lin/wiki, based on https://github.com/lin-bus/linux-lin/wiki/sllin-rtlws14-paper.pdf, more CAN related projects http://canbus.pages.fel.cvut.cz/
In latest linux kernel, sllin_ioctl and sllin_hangup has changed, giving compilation with new headers