Atmel AT91 onchip CAN controller

modulename: at91_can.ko

configname: CONFIG_CAN_AT91

Linux Kernel Configuration
└─>Device Drivers
└─>Network device support
└─>CAN Device Drivers
└─>Atmel AT91 onchip CAN controller
In linux kernel since version 2.6.32 (release Date: 2009-12-02)  
This is a driver for the SoC CAN controller in Atmel's AT91SAM9263
and AT91SAM9X5 processors.

source code:
drivers/net/can/at91_can.c