# 
# ls /sys/bus/platform/drivers/macb/
20030000.ethernet  bind               uevent             unbind
# 
# cd  /sys/bus/platform/drivers/macb/
# 
# ls
20030000.ethernet  bind               uevent             unbind
# 
# echo '20030000.ethernet' > unbind
# 

解绑之后看不到网卡了

# ip a
1: lo:  mtu 65536 qdisc noqueue qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host 
       valid_lft forever preferred_lft forever
3: sit0@NONE:  mtu 1480 qdisc noop qlen 1000
    link/sit 0.0.0.0 brd 0.0.0.0
# 
# echo '20030000.ethernet' > bind

Linux设备与驱动的手动解绑与手动绑定