> 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/mos.4.md).

# mos.4

`mos` — Moschip MCS7730/MCS7830/MCS7832 USB 以太网驱动

## 名称

`mos`

## 概要

`要将此驱动编译进内核，请在你的内核配置文件中加入以下行：`

> device uhci device ohci device ehci device usb device miibus device uether device mos

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

```sh
if_mos_load="YES"
```

## 描述

`mos` 驱动为基于 Moschip MCS7730/MCS7830/MCS7832 芯片组的 USB 以太网适配器提供支持。

包含 Moschip MCS7730/MCS7830/MCS7832 芯片组的适配器将以 100Base-TX 和全双工模式运行。

Moschip 内置带 MII 接口的 10/100 以太网 MAC，设计用于与以太网和 HomePNA 收发器配合工作。虽然设计用于与 100Mbps 外设接口，但仅适用于 USB 2.0。现有 USB 1.0 标准规定的最大传输速率为 12Mbps。因此，USB 1.0 用户不应期望使用这些设备实际达到 100Mbps 的速度。

Moschip 支持 64 位多播哈希表、用于站地址的单一完美过滤条目以及混杂模式。数据包通过独立的 USB 批量传输端点进行接收和发送。

有关配置此设备的更多信息，参见 [ifconfig(8)](/man/man8/ifconfig.8.md)。

## 硬件

`mos` 驱动支持的适配器包括：

* Sitecom LN030

## 参见

[altq(4)](/man/man4/altq.4.md), [arp(4)](https://github.com/FreeBSD-Ask/freebsd-man-sc/tree/main/man4/arp.4.md), [miibus(4)](/man/man4/miibus.4.md), [netintro(4)](/man/man4/netintro.4.md), [ng\_ether(4)](/man/man4/ng_ether.4.md), [ifconfig(8)](/man/man8/ifconfig.8.md)

> "ADMtek AN986 data sheet", <http://www.moschip.com/data/products/MCS7830/Data%20Sheet_7830.pdf。>

## 历史

`mos` 设备驱动首次出现于 FreeBSD 8.2。

## 作者

`mos` 驱动由 Rick van der Zwet <info@rickvanderzwet.nl> 编写。


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:

```
GET https://book.bsdcn.org/man/man4/mos.4.md?ask=<question>&goal=<endgoal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.

The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.