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#
# GENERIC -- Generic kernel configuration file for FreeBSD/i386
#
# For more information on this file, please read the config(5) manual page,
# and/or the handbook section on Kernel Configuration Files:
#
#    http://www.FreeBSD.org/doc/en_US.ISO8859-1/books/handbook/kernelconfig-config.html
#
# The handbook is also available locally in /usr/share/doc/handbook
# if you've installed the doc distribution, otherwise always see the
# FreeBSD World Wide Web server (http://www.FreeBSD.org/) for the
# latest information.
#
# An exhaustive list of options and more detailed explanations of the
# device lines is also present in the ../../conf/NOTES and NOTES files.
# If you are in doubt as to the purpose or necessity of a line, check first
# in NOTES.
#
# $FreeBSD: src/sys/i386/conf/GENERIC,v 1.519.2.12.2.1 2010/12/21 17:09:25 kensmith Exp $

#cpu		I486_CPU
cpu		I586_CPU
#cpu		I686_CPU
ident		GENERIC              // 内核标识,没什么特殊意义『搜来的,我也不懂』

# To statically compile in device wiring instead of /boot/device.hints
#hints		"GENERIC.hints"		# Default places to look for devices.

# Use the following to compile in values accessible to the kernel
# through getenv() (or kenv(1) in userland). The format of the file
# is 'variable=value', see kenv(1)
#
# env		"GENERIC.env"

makeoptions	DEBUG=-g		# Build kernel with gdb(1) debug symbols	// Debug 的什么东西

options 	SCHED_ULE		# ULE scheduler					// ULE调度
options 	PREEMPTION		# Enable kernel thread preemption		// 启用内核线程抢占
options 	INET			# InterNETworking				// IPV4 的网络
options 	INET6			# IPv6 communications protocols			// IPV6 的什么东西
options 	SCTP			# Stream Control Transmission Protocol		// 流控制传输协议
options 	FFS			# Berkeley Fast Filesystem			// Berkeley 快速文件系统
options 	SOFTUPDATES		# Enable FFS soft updates support		// 启用 FFS 软件更新支持
options 	UFS_ACL			# Support for access control lists		// 启用访问列表控制
options 	UFS_DIRHASH		# Improve performance on big directories	// 改进大目录的支持效果
options 	UFS_GJOURNAL		# Enable gjournal-based UFS journaling		// UFS 的日志
options 	MD_ROOT			# MD is a potential root device			// 根设备文件
options 	NFSCLIENT		# Network Filesystem Client			// 网络文件系统客户端
options 	NFSSERVER		# Network Filesystem Server			// 网络文件系统服务端
options 	NFSLOCKD		# Network Lock Manager				// 网络锁定管理器
options 	NFS_ROOT		# NFS usable as /, requires NFSCLIENT		// NFS 为根目录,需要 NFSCLIENT 支持
options 	MSDOSFS			# MSDOS Filesystem				// MSDOS 文件系统
options 	CD9660			# ISO 9660 Filesystem				// 光盘文件系统
options 	PROCFS			# Process filesystem (requires PSEUDOFS)	// 进程文件系统『需要 PSEUDOFS 支持』
options 	PSEUDOFS		# Pseudo-filesystem framework			// 伪文件系统框架
options 	GEOM_PART_GPT		# GUID Partition Tables.			// GUID 分区表
options 	GEOM_LABEL		# Provides labelization				// 什么标签吧 {待定}
options 	COMPAT_43TTY		# BSD 4.3 TTY compat (sgtty)			// BSD 4.3 的 TTY 支持
options 	COMPAT_FREEBSD4		# Compatible with FreeBSD4			// 兼容 FreeBSD4
options 	COMPAT_FREEBSD5		# Compatible with FreeBSD5			// 兼容 FreeBSD5
options 	COMPAT_FREEBSD6		# Compatible with FreeBSD6			// 兼容 FreeBSD6
options 	COMPAT_FREEBSD7		# Compatible with FreeBSD7			// 兼容 FreeBSD7
options 	SCSI_DELAY=5000		# Delay (in ms) before probing SCSI		// 延迟(毫秒),然后探测SCSI
options 	KTRACE			# ktrace(1) support				// 允许调试跟踪内存单元
options 	STACK			# stack(9) support				// stack 支持
options 	SYSVSHM			# SYSV-style shared memory			// SYSV 形式的内存共享
options 	SYSVMSG			# SYSV-style message queues			// SYSV 形式的消息列队
options 	SYSVSEM			# SYSV-style semaphores				// SYSV 信号灯??
options 	P1003_1B_SEMAPHORES	# POSIX-style semaphores			// POSIX 信号灯？？
options 	_KPOSIX_PRIORITY_SCHEDULING # POSIX P1003_1B real-time extensions	// POSIX 的 P1003_1B 实施扩展
options 	PRINTF_BUFR_SIZE=128	# Prevent printf output being interspersed.	// 防止 print 输出被怎么滴
options 	KBD_INSTALL_CDEV	# install a CDEV entry in /dev			// 安装 CDEV 到 /dev
options 	HWPMC_HOOKS		# Necessary kernel hooks for hwpmc(4)		// hwpcm 的关于内核的东西
options 	AUDIT			# Security event auditing			// 安全事件审计
options 	MAC			# TrustedBSD MAC Framework			// 可信任的 MAC 框架
options 	FLOWTABLE		# per-cpu routing cache				// cpu 的什么缓存吧
#options 	KDTRACE_HOOKS		# Kernel DTrace hooks				// 内核的 Dtree 钩子
options 	INCLUDE_CONFIG_FILE     # Include this file in kernel			// 包含这个内核文件

options 	KDB			# Kernel debugger related code			// 内核调试器相关代码
options 	KDB_TRACE		# Print a stack trace for a panic		// print什么的

# To make an SMP kernel, the next two lines are needed
options 	SMP			# Symmetric MultiProcessor Kernel		// 多核处理器的内核支持吧
device		apic			# I/O APIC					// APIC 什么的

# CPU frequency control							CPU频率控制
device		cpufreq									// CPU频率控制

# Bus support.								总线控制
device		acpi
device		eisa
device		pci

# Floppy drives								软驱驱动
device		fdc									// 一般没什么机器还配置软驱了,注释掉好了

# ATA and ATAPI devices		ATA和ATAPI设备
device		ata
device		atadisk		# ATA disk drives					// ATA 磁盘驱动器
device		ataraid		# ATA RAID drives					// ATA RAID 驱动器
device		atapicd		# ATAPI CDROM drives					// ATAPI CD - ROM 驱动器
device		atapifd		# ATAPI floppy drives					// ATAPI 软盘驱动器
device		atapist		# ATAPI tape drives					// ATAPI 磁带机
options 	ATA_STATIC_ID	# Static device numbering				// 静态设备编号

# SCSI Controllers							SCSI 控制器
device		ahb		# EISA AHA1742 family					// EISA AHA1742 系列
device		ahc		# AHA2940 and onboard AIC7xxx devices			// AHA2940 和 AIC7xxx 驱动
options 	AHC_REG_PRETTY_PRINT	# Print register bitfields in debug
					# output.  Adds ~128k to driver.		// 打印什么东西的
device		ahd		# AHA39320/29320 and onboard AIC79xx devices		// AHA39320/29320 和 AIC79xx 驱动
options 	AHD_REG_PRETTY_PRINT	# Print register bitfields in debug
					# output.  Adds ~215k to driver.		// 给出容易阅读的寄存器值，用于帮助调试 『搜索来的』
device		amd		# AMD 53C974 (Tekram DC-390(T))
device		hptiop		# Highpoint RocketRaid 3xxx series
device		isp		# Qlogic family
#device		ispfw		# Firmware for QLogic HBAs- normally a module		// 什么的模块
device		mpt		# LSI-Logic MPT-Fusion
#device		ncr		# NCR/Symbios Logic
device		sym		# NCR/Symbios Logic (newer chipsets + those of `ncr')
device		trm		# Tekram DC395U/UW/F DC315U adapters

device		adv		# Advansys SCSI adapters				// Advansys SCSI适配器
device		adw		# Advansys wide SCSI adapters				// 加了一个 wide 就有点不懂了,应该是SCSI适配器相关的 ???
device		aha		# Adaptec 154x SCSI adapters				// 154x 的 SCSI 适配器 ???
device		aic		# Adaptec 15[012]x SCSI adapters, AIC-6[23]60.		// 15[012]x 的 SCSI 适配器 ???
device		bt		# Buslogic/Mylex MultiMaster SCSI adapters		// 多重 SCSI 适配器 ???

device		ncv		# NCR 53C500						// 应该是某种特定设备的驱动支持
device		nsp		# Workbit Ninja SCSI-3					// 同上
device		stg		# TMC 18C30/18C50					// 同上

# SCSI peripherals		SCSI 外设
device		scbus		# SCSI bus (required for SCSI)				// SCSI 总线 『必须』
device		ch		# SCSI media changers					// SCSI 介质什么的
device		da		# Direct Access (disks)					// 主通道 『磁盘』
device		sa		# Sequential Access (tape etc)				// 次要通道 『磁带等』
device		cd		# CD
device		pass		# Passthrough device (direct SCSI access)		// 磁盘类的
device		ses		# SCSI Environmental Services (and SAF-TE)		// 磁盘类的

# RAID controllers interfaced to the SCSI subsystem			RAID控制器接口的SCSI子系统
device		amr		# AMI MegaRAID
device		arcmsr		# Areca SATA II RAID
device		asr		# DPT SmartRAID V, VI and Adaptec SCSI RAID
device		ciss		# Compaq Smart RAID 5*
device		dpt		# DPT Smartcache III, IV - See NOTES for options
device		hptmv		# Highpoint RocketRAID 182x
device		hptrr		# Highpoint RocketRAID 17xx, 22xx, 23xx, 25xx
device		iir		# Intel Integrated RAID
device		ips		# IBM (Adaptec) ServeRAID
device		mly		# Mylex AcceleRAID/eXtremeRAID
device		twa		# 3ware 9000 series PATA/SATA RAID

# RAID controllers							RAID 控制器
device		aac		# Adaptec FSA RAID
device		aacp		# SCSI passthrough for aac (requires CAM)
device		ida		# Compaq Smart RAID
device		mfi		# LSI MegaRAID SAS
device		mlx		# Mylex DAC960 family
device		pst		# Promise Supertrak SX6000
device		twe		# 3ware ATA RAID

# atkbdc0 controls both the keyboard and the PS/2 mouse			键盘鼠标什么的
device		atkbdc		# AT keyboard controller				// 键盘控制器
device		atkbd		# AT keyboard						// 键盘
device		psm		# PS/2 mouse						// 鼠标

device		kbdmux		# keyboard multiplexer					// 多键盘支持

device		vga		# VGA video card driver					// 显卡支持

device		splash		# Splash screen and screen saver support		// 背景、屏保支持

# syscons is the default console driver, resembling an SCO console
device		sc

device		agp		# support several AGP chipsets				// 多种AGP芯片组支持

# Power management support (see NOTES for more options)			电源管理支持
#device		apm
# Add suspend/resume support for the i8254.						// i8254 的支持
device		pmtimer

# PCCARD (PCMCIA) support						PCCARD(PCMCIA)支持
# PCMCIA and cardbus bridge support					PCMCIA和总线卡的支持
device		cbb		# cardbus (yenta) bridge				// 总线
device		pccard		# PC Card (16-bit) bus					// 16位
device		cardbus		# CardBus (32-bit) bus					// 32位

# Serial (COM) ports							串口设备
device		uart		# Generic UART driver					// 通用驱动

# Parallel port								并口设备
device		ppc
device		ppbus		# Parallel port bus (required)				// 并口总线 『必须』
device		lpt		# Printer						// 并口打印驱动
device		plip		# TCP/IP over parallel					// TCP/IP 相关的
device		ppi		# Parallel port interface device			// 并口设备
#device		vpo		# Requires scbus and da					// 不懂的

# If you've got a "dumb" serial or parallel PCI card that is
# supported by the puc(4) glue driver, uncomment the following
# line to enable it (connects to sio, uart and/or ppc drivers):
#device		puc									// 还是不懂 默认就行了吧

# PCI Ethernet NICs.							PCI以太网网卡
device		de		# DEC/Intel DC21x4x (``Tulip'')
device		em		# Intel PRO/1000 Gigabit Ethernet Family
device		igb		# Intel PRO/1000 PCIE Server Gigabit Family
device		ixgb		# Intel PRO/10GbE Ethernet Card
device		le		# AMD Am7900 LANCE and Am79C9xx PCnet
device		ti		# Alteon Networks Tigon I/II gigabit Ethernet
device		txp		# 3Com 3cR990 (``Typhoon'')
device		vx		# 3Com 3c590, 3c595 (``Vortex'')

# PCI Ethernet NICs that use the common MII bus controller code.	PCI以太网网卡,使用共同的MII总线控制器
# NOTE: Be sure to keep the 'device miibus' line in order to use these NICs!
device		miibus		# MII bus support
device		ae		# Attansic/Atheros L2 FastEthernet
device		age		# Attansic/Atheros L1 Gigabit Ethernet
device		alc		# Atheros AR8131/AR8132 Ethernet
device		ale		# Atheros AR8121/AR8113/AR8114 Ethernet
device		bce		# Broadcom BCM5706/BCM5708 Gigabit Ethernet
device		bfe		# Broadcom BCM440x 10/100 Ethernet
device		bge		# Broadcom BCM570xx Gigabit Ethernet
device		dc		# DEC/Intel 21143 and various workalikes
device		et		# Agere ET1310 10/100/Gigabit Ethernet
device		fxp		# Intel EtherExpress PRO/100B (82557, 82558)
device		jme		# JMicron JMC250 Gigabit/JMC260 Fast Ethernet
device		lge		# Level 1 LXT1001 gigabit Ethernet
device		msk		# Marvell/SysKonnect Yukon II Gigabit Ethernet
device		nfe		# nVidia nForce MCP on-board Ethernet
device		nge		# NatSemi DP83820 gigabit Ethernet
#device		nve		# nVidia nForce MCP on-board Ethernet Networking
device		pcn		# AMD Am79C97x PCI 10/100 (precedence over 'le')
device		re		# RealTek 8139C+/8169/8169S/8110S
device		rl		# RealTek 8129/8139
device		sf		# Adaptec AIC-6915 (``Starfire'')
device		sge		# Silicon Integrated Systems SiS190/191
device		sis		# Silicon Integrated Systems SiS 900/SiS 7016
device		sk		# SysKonnect SK-984x & SK-982x gigabit Ethernet
device		ste		# Sundance ST201 (D-Link DFE-550TX)
device		stge		# Sundance/Tamarack TC9021 gigabit Ethernet
device		tl		# Texas Instruments ThunderLAN
device		tx		# SMC EtherPower II (83c170 ``EPIC'')
device		vge		# VIA VT612x gigabit Ethernet
device		vr		# VIA Rhine, Rhine II
device		wb		# Winbond W89C840F
device		xl		# 3Com 3c90x (``Boomerang'', ``Cyclone'')

# ISA Ethernet NICs.  pccard NICs included.				ISA以太网网卡,PCCARD网卡包含在其中
device		cs		# Crystal Semiconductor CS89x0 NIC
# 'device ed' requires 'device miibus'					也是网卡类的不过好像很少见
device		ed		# NE[12]000, SMC Ultra, 3c503, DS8390 cards
device		ex		# Intel EtherExpress Pro/10 and Pro/10+
device		ep		# Etherlink III based cards
device		fe		# Fujitsu MB8696x based cards
device		ie		# EtherExpress 8/16, 3C507, StarLAN 10 etc.
device		sn		# SMC's 9000 series of Ethernet chips
device		xe		# Xircom pccard Ethernet

# Wireless NIC cards							无线网卡支持
device		wlan		# 802.11 support
options 	IEEE80211_DEBUG	# enable debug msgs
options 	IEEE80211_AMPDU_AGE # age frames in AMPDU reorder q's
options 	IEEE80211_SUPPORT_MESH	# enable 802.11s draft support
device		wlan_wep	# 802.11 WEP support
device		wlan_ccmp	# 802.11 CCMP support
device		wlan_tkip	# 802.11 TKIP support
device		wlan_amrr	# AMRR transmit rate control algorithm
device		an		# Aironet 4500/4800 802.11 wireless NICs.
device		ath		# Atheros pci/cardbus NIC's
device		ath_hal		# pci/cardbus chip support
options 	AH_SUPPORT_AR5416	# enable AR5416 tx/rx descriptors
device		ath_rate_sample	# SampleRate tx rate control for ath
device		ral		# Ralink Technology RT2500 wireless NICs.
device		wi		# WaveLAN/Intersil/Symbol 802.11 wireless NICs.
#device		wl		# Older non 802.11 Wavelan wireless NIC.

# Pseudo devices.							伪设备支持
device		loop		# Network loopback					// 网络回环
device		random		# Entropy device					// 不知道什么设备
device		ether		# Ethernet support					// 以太网支持
device		vlan		# 802.1Q VLAN support					// 802.1q VLAN 支持
device		tun		# Packet tunnel.					// PPPoE 好像会用这个设备
device		pty		# BSD-style compatibility pseudo ttys			// BSD风格的伪终端设备
device		md		# Memory "disks"					// 内存盘设备
device		gif		# IPv6 and IPv4 tunneling				// IP4 OR 6 设备的什么
device		faith		# IPv6-to-IPv4 relaying (translation)			// IPV6 转换 IPV4 的什么东西
device		firmware	# firmware assist module				// 

# The `bpf' device enables the Berkeley Packet Filter.
# Be aware of the administrative consequences of enabling this!
# Note that 'bpf' is required for DHCP.
device		bpf		# Berkeley packet filter				// 数据包过滤器??  还是不懂 默认好了

# USB support								USB支持
options 	USB_DEBUG	# enable debug msgs
device		uhci		# UHCI PCI->USB interface
device		ohci		# OHCI PCI->USB interface
device		ehci		# EHCI PCI->USB interface (USB 2.0)
device		usb		# USB Bus (required)
#device		udbp		# USB Double Bulk Pipe devices
device		uhid		# "Human Interface Devices"
device		ukbd		# Keyboard
device		ulpt		# Printer
device		umass		# Disks/Mass storage - Requires scbus and da
device		ums		# Mouse
device		urio		# Diamond Rio 500 MP3 player
# USB Serial devices							USB串行设备
device		u3g		# USB-based 3G modems (Option, Huawei, Sierra)
device		uark		# Technologies ARK3116 based serial adapters
device		ubsa		# Belkin F5U103 and compatible serial adapters
device		uftdi		# For FTDI usb serial adapters
device		uipaq		# Some WinCE based devices
device		uplcom		# Prolific PL-2303 serial adapters
device		uslcom		# SI Labs CP2101/CP2102 serial adapters
device		uvisor		# Visor and Palm devices
device		uvscom		# USB serial support for DDI pocket's PHS
# USB Ethernet, requires miibus						USB以太网,需要miibus
device		aue		# ADMtek USB Ethernet
device		axe		# ASIX Electronics USB Ethernet
device		cdce		# Generic USB over Ethernet
device		cue		# CATC USB Ethernet
device		kue		# Kawasaki LSI USB Ethernet
device		rue		# RealTek RTL8150 USB Ethernet
device		udav		# Davicom DM9601E USB
# USB Wireless								USB无线网卡
device		rum		# Ralink Technology RT2501USB wireless NICs
device		uath		# Atheros AR5523 wireless NICs
device		ural		# Ralink Technology RT2500USB wireless NICs
device		zyd		# ZyDAS zb1211/zb1211b wireless NICs

# FireWire support							防火墙支持
device		firewire	# FireWire bus code
#device		sbp		# SCSI over FireWire (Requires scbus and da)
device		fwe		# Ethernet over FireWire (non-standard!)
device		fwip		# IP over FireWire (RFC 2734,3146)
device		dcons		# Dumb console driver
device		dcons_crom	# Configuration ROM for dcons