貌似是tw6865采集卡的主芯片坏了，很烫，并且pcie一直link failed，就跟没连接采集卡一样，但是没有连接采集卡的时候依旧载入了tw68的驱动，并且映射了video16-20，这是怎么回事？还有video16-20能不能改成video0-4？怎么改？以下是启动log节选
PM driver module loaded
iMX6 PCIe PCIe RC mode imx_pcie_pltfm_probe entering.
PCIE: imx_pcie_pltfm_probe start link up.
link up failed, DB_R0:0x00427400, DB_R1:0x08200000!
IMX PCIe port: link down!
IMX usb wakeup probe
the wakeup pdata is 0xbfd29840
Linux video capture interface: v2.00
TW6868_: v4l2 driver version 2.0.1 loaded
mxc_v4l2_output mxc_v4l2_output.0: V4L2 device registered as video16
mxc_v4l2_output mxc_v4l2_output.0: V4L2 device registered as video17
mxc_v4l2_output mxc_v4l2_output.0: V4L2 device registered as video18
mxc_v4l2_output mxc_v4l2_output.0: V4L2 device registered as video19
mxc_v4l2_output mxc_v4l2_output.0: V4L2 device registered as video20
mag3110 2-000e: check mag3110 chip ID
mag3110 2-000e: read chip ID 0xfffffffb is not equal to 0xc4!
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