Microchip MCP251x and MCP25625 SPI CAN controllers

modulename: mcp251x.ko

configname: CONFIG_CAN_MCP251X

Linux Kernel Configuration
└─>Device Drivers
└─>Network device support
└─>CAN Device Drivers
└─>CAN SPI interfaces
└─>Microchip MCP251x and MCP25625 SPI CAN controllers
In linux kernel since version 2.6.33 (release Date: 2010-02-24)  
Driver for the Microchip MCP251x and MCP25625 SPI CAN
controllers.

source code:
drivers/net/can/spi/mcp251x.c