#### NOTE
The `unix-hotplug` device type is supported for containers.
It supports hotplugging.
Unix hotplug devices make the requested Unix device appear as a device in the container (under `/dev`).
If the device exists on the host system, you can read from it and write to it.
The implementation depends on `systemd-udev` to be run on the host.
## Device options
`unix-hotplug` devices have the following device options:
`gid`
GID of the device owner in the container
[](#device-unix-hotplug-device-conf:gid)
| **Key:** | `gid` |
|--------------|---------|
| **Type:** | integer |
| **Default:** | `0` |
`mode`
Mode of the device in the container
[](#device-unix-hotplug-device-conf:mode)
| **Key:** | `mode` |
|--------------|----------|
| **Type:** | integer |
| **Default:** | `0660` |
`ownership.inherit`
Whether this device inherits ownership (GID and/or UID) from the host
[](#device-unix-hotplug-device-conf:ownership.inherit)
| **Key:** | `ownership.inherit` |
|--------------|-----------------------|
| **Type:** | bool |
| **Default:** | `false` |
`productid`
Product ID of the Unix device
[](#device-unix-hotplug-device-conf:productid)
| **Key:** | `productid` |
|-------------|---------------|
| **Type:** | string |
`required`
Whether this device is required to start the container
[](#device-unix-hotplug-device-conf:required)
| **Key:** | `required` |
|--------------|--------------|
| **Type:** | bool |
| **Default:** | `false` |
The default is `false`, which means that all devices can be hotplugged.
`subsystem`
Subsystem of the Unix device
[](#device-unix-hotplug-device-conf:subsystem)
| **Key:** | `subsystem` |
|-------------|---------------|
| **Type:** | string |
`uid`
UID of the device owner in the container
[](#device-unix-hotplug-device-conf:uid)
| **Key:** | `uid` |
|--------------|---------|
| **Type:** | integer |
| **Default:** | `0` |
`vendorid`
Vendor ID of the Unix device
[](#device-unix-hotplug-device-conf:vendorid)
| **Key:** | `vendorid` |
|-------------|--------------|
| **Type:** | string |
## Configuration examples
Add a `unix-hotplug` device to an instance by specifying its vendor ID, product ID, and/or subsystem:
```none
lxc config device add unix-hotplug vendorid= productid= subsystem=
```
See [Configure devices](https://canonical.com/lxd/docs/default/howto/instances_configure/index.html.md#instances-configure-devices) for more information.