安装驱动错误 Unknown symbol __uio_register_device (err -2)

我编写了一个uio驱动，在安装的时候出错

insmod: ERROR: could not insert module uio_test.ko: Unknown symbol in module

dmesg查看内核日志

Unknown symbol __uio_register_device (err -2)
Unknown symbol uio_unregister_device (err -2)

modinfo查看驱动依赖uio

filename: /root/uio_test.ko
description: UIOTEST DRIVER
author: YUAN
license: GPL v2
srcversion: FDE0C2D927FC777F2B5947F
alias: pci:v000010EEd00007038svsdbcsci*
depends: uio
retpoline: Y
name: uio_test_drv
vermagic: 5.8.0-38-generic SMP mod_unload

查看内核配置发现uio被配置为了m
CONFIG_UIO=m

所以需要先解决依赖uio的问题，再安装自己的驱动

modprobe uio
insmod uio_test.ko