> For the complete documentation index, see [llms.txt](https://book.bsdcn.org/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://book.bsdcn.org/man/man4/udl.4.md).

# udl.4

`udl` — DisplayLink DL-120 / DL-160 USB 显示设备驱动

## 名称

`udl`

## 概要

`若要将此驱动编译进内核，请在内核配置文件中加入以下行：`

> device udl device videomode

`或者，要在引导时以模块形式加载驱动，请在 loader.conf(5) 中加入以下行：`

```sh
udl_load="YES"
```

## 硬件

`udl` 驱动支持基于 DisplayLink DL-120 和 DL-160 图形芯片的 USB 显示设备，包括：

* Century Corp. Japan Plus One LCD-8000U
* Century Corp. Japan Plus One LCD-4300U
* DisplayLink USB to DVI
* ForwardVideo EasyCAP008 USB to DVI
* HP USB 2.0 Docking Station (FQ834)
* HP USB Graphics Adapter (NL571)
* IOGEAR USB 2.0 External DVI (GUC2020)
* Koenig CMP-USBVGA10 和 CMP-USBVGA11
* Lenovo 45K5296 USB to DVI
* Lenovo ThinkVision LT1421
* Lilliput UM-70
* Nanovision MiMo UM-710 和 UM-740
* Rextron VCUD60 USB to DVI
* Samsung LD220
* StarTech CONV-USB2DVI
* Sunweit USB to DVI
* Unitek Y-2240 USB to DVI
* VideoHome NBdock1920
* i-tec USB 2.0 Docking Station (USBDVIDOCK)

## 参见

[usb(4)](https://github.com/FreeBSD-Ask/freebsd-man-sc/blob/main/man4/usb.4.md)

## 历史

`udl` 驱动出现于 OpenBSD 4.6 和 FreeBSD 11.0。


---

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