最近使用BBB板在做CAN相关实验,想在驱动层做DCAN的过滤,但手册中并没有写的很清楚,如何使用过滤,在linux4.2.0内核源码中找到设置CAN Message Objects的相关代码:(drivers/net/can/c_can.c)
但无论怎么设置mask和id,A板使用cansend发送任意CAN帧均能在B板使用candump收到,没有起到过滤作用。请问DCAN的过滤机制究竟是如何实现的?
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