> The networking stack has a proper interface for network interface statistics, better make use of these. You mean those in /sys/class/net/can0/statistics? I was not aware that custom errors can be added here. By no means I would want the SPI CRC errors appear in rx_crc_errors. The way you used it for the fifo errors is however justified. Or do you talk about the driver statistics reported via the ethtool interface? -- Stefan