libudev API examples
- udev_example1.c: using libudev API we get basic information for network device 'eth0'.
example:
[user@linux ~]$ ./udev_example1 eth0
I: DEVNAME=eth0
I: DEVPATH=/devices/pci0000:00/0000:00:19.0/net/eth0
I: MACADDR=18:03:73:db:c3:31
I: DRIVER=e1000
- udev_example2.c: using libudev API we enumerate all devices under 'block' subsystem that are not 'partitions' or 'loop' devices.
example:
[user@linux ~]$ ./udev_example2
I: DEVNODE=/dev/sda
I: KERNEL=sda
I: DEVPATH=/devices/pci0000:00/0000:00:1f.2/ata1/host0/target0:0:0/0:0:0:0/block/sda
I: DEVTYPE=disk
I: DEVSIZE=500 GB
I: DEVNODE=/dev/sr0
I: KERNEL=sr0
I: DEVPATH=/devices/pci0000:00/0000:00:1f.2/ata2/host1/target1:0:0/1:0:0:0/block/sr0
I: DEVTYPE=disk
I: DEVSIZE=n/a
- udev_example3.c: using libudev API we monitor 'net' subsystem for events.
example:
[user@linux ~]$ ./udev_example3
I: ACTION=remove
I: DEVNAME=net0
I: DEVPATH=/devices/pci0000:00/0000:00:19.0/net/net0
I: MACADDR=(null)
---
I: ACTION=add
I: DEVNAME=net0
I: DEVPATH=/devices/pci0000:00/0000:00:19.0/net/net0
I: MACADDR=d4:be:d9:2b:86:7c
Copyright (C) 2014-2021 Robert Milasan robert@linux-source.org.
uprg is free software made available under the GPL2. For details see the LICENSE file.