请问：1.
ip link set can0 up
flexcan 2090000.can can0: writing ctrl=0xf93e2007
RTNETLINK answers: Connection timed out
2. 在/sys/class/net/can0文件夹下 有 addr_assign_type device link_mode power
addr_len dormant mtu queues
address duplex name_assign_type speed
broadcast flags netdev_group statistics
carrier gro_flush_timeout operstate subsystem
carrier_changes ifalias phys_port_id tx_queue_len
dev_id ifindex phys_port_name type
dev_port iflink phys_switch_id uevent
但是没有 其他网友所提到的 can_bittiming/bitrate 文件
