Section 4 of the manual describes special files (devices).
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- mfi
- LSI MegaRAID SAS driver
- mfi_linux
- mfi — LSI MegaRAID SAS driver
- mfip
- mfi — LSI MegaRAID SAS driver
- mga
- Matrox video driver
- mgettydefs
- speed and terminal settings used by mgetty
- miff
- MIFF - Magick Image File Format
- miibus
- IEEE 802.3 Media Independent Interface network bus
- mk48txx
- Mostek time-of-day clock driver
- mld
- Multicast Listener Discovery Protocol
- mlx
- Mylex DAC-family RAID driver
- mlx4en
- Mellanox ConnectX-3 10GbE/40GbE network adapter driver
- mlx4ib
- Mellanox ConnectX-3 10GbE/40GbE network adapter driver
- mlx5en
- Mellanox ConnectX-4, ConnectX-4 LX and ConnectX-5 based 100Gb, 50Gb, 40Gb, 25Gb and 10Gb Ethernet adapter driver
- mlx5ib
- Mellanox ConnectX-4 and ConnectX-4 LX based 100Gb, 50Gb, 40Gb, 25Gb and 10Gb network adapter driver
- mlx5io
- IOCTL interface to manage Connect-X 4/5/6 Mellanox network adapters
- mly
- Mylex AcceleRAID/eXtremeRAID family driver
- mmc
- MultiMediaCard and SD Card bus driver
- mmcsd
- MMC and SD memory card driver
- mn
- Siemens Easy321-R1 E1/T1 device driver
- mod_cc
- Modular congestion control
- modesetting
- video driver for framebuffer device
- modulefile
- files containing Tcl code for the Modules package
- mos
- Moschip MCS7730/MCS7830/MCS7832 USB Ethernet driver
- mouse
- serial mouse interface
- mouse
- mouse and pointing device drivers
- mousedrv
- mouse - Xorg mouse input driver
- mpr
- LSI Fusion-MPT 3/3.5 IT/IR 12Gb/s Serial Attached SCSI/SATA/PCIe driver
- mps
- LSI Fusion-MPT 2 IT/IR 6Gb/s Serial Attached SCSI/SATA driver
- mpt
- LSI Fusion-MPT SCSI/Fibre Channel driver
- mrsas
- LSI MegaRAID 6Gb/s and 12Gb/s SAS+SATA RAID controller driver
- mse
- bus and InPort mice driver
- msk
- Marvell/SysKonnect Yukon II Gigabit Ethernet adapter driver
- msr
- x86 CPU MSR access device
- mtio
- FreeBSD magtape interface
- muge
- Microchip LAN78xx USB Gigabit Ethernet driver
- multicast
- Multicast Routing
- mutouch
- Microtouch input driver
- mvs
- Marvell Serial ATA Host Controller driver
- mwl
- Marvell 88W8363 IEEE 802.11n wireless network driver
- mwlfw
- Firmware Module for Marvell 88W8363 Wireless driver
- mwmrc
- the Motif Window Manager Resource Description File
- mx25l
- driver for SpiFlash(tm) compatible non-volatile storage devices
- mxge
- Myricom Myri10GE 10 Gigabit Ethernet adapter driver
- my
- Myson Technology Ethernet PCI driver
- nand
- NAND Flash framework
- nandsim
- NAND Flash simulator driver
- ncr
- NCR 53C8xx SCSI driver
- ncv
- NCR 53C500 based SCSI host adapter driver
- nda
- NVMe Direct Access device driver
- ndis
- NDIS miniport driver wrapper
- neomagic
- Neomagic video driver
- net
- networking — introduction to networking facilities
- net80211
- standard interface to IEEE 802.11 devices
- netdump
- protocol for transmitting kernel dumps to a remote server
- netfpga10g_nf10bmac
- driver for the NetFPGA-10G Embedded CPU Ethernet Core
- netgraph
- graph based kernel networking subsystem
- netintro
- networking — introduction to networking facilities
- netmap
- a framework for fast packet I/O
- netrom
- AF_NETROM - NET/ROM amateur packet radio protocol family
- networking
- introduction to networking facilities
- nfe
- NVIDIA nForce MCP Ethernet driver
- nfsmb
- NVIDIA nForce2/3/4 SMBus 2.0 controller driver
- nfsv4
- NFSv4 — NFS Version 4 Protocol
- ng_UI
- UI netgraph node type
- ng_async
- asynchronous framing netgraph node type
- ng_atmllc
- ATM LLC netgraph node type
- ng_bluetooth
- placeholder for global Bluetooth variables
- ng_bpf
- Berkeley packet filter netgraph node type
- ng_bridge
- Ethernet bridging netgraph node type
- ng_bt3c
- Netgraph node type that is also a 3Com Bluetooth PC card driver
- ng_btsocket
- Bluetooth sockets layer
- ng_car
- Committed Access Rate netgraph node type
- ng_ccatm
- ATM Call Control netgraph node type
- ng_cisco
- Cisco HDLC protocol netgraph node type
- ng_deflate
- Deflate PPP compression (RFC 1979) netgraph node type
- ng_device
- device netgraph node type
- ng_echo
- netgraph echo node type
- ng_eiface
- generic Ethernet interface netgraph node type
- ng_etf
- Ethertype filtering netgraph node type
- ng_ether
- Ethernet netgraph node type
- ng_ether_echo
- netgraph ether_echo node type
- ng_frame_relay
- frame relay netgraph node type
- ng_gif
- generic tunnel interface netgraph node type
- ng_gif_demux
- demultiplexer for packets from ng_gif(4) nodes
- ng_h4
- Netgraph node type that is also an H4 line discipline
- ng_hci
- Netgraph node type that is also a Bluetooth Host Controller Interface (HCI) layer
- ng_hole
- netgraph discard node type
- ng_hub
- packet distribution netgraph node type
- ng_iface
- interface netgraph node type
- ng_ip_input
- netgraph IP input node type
- ng_ipfw
- interface between netgraph and IP firewall
- ng_ksocket
- kernel socket netgraph node type
- ng_l2cap
- Netgraph node type that implements Bluetooth Logical Link Control and Adaptation Protocol (L2CAP)
- ng_l2tp
- L2TP protocol netgraph node type
- ng_lmi
- frame relay LMI protocol netgraph node type
- ng_mppc
- Microsoft MPPC/MPPE compression and encryption netgraph node type
- ng_nat
- NAT netgraph node type
- ng_netflow
- Cisco's NetFlow implementation
- ng_one2many
- packet multiplexing netgraph node type
- ng_patch
- trivial mbuf data modifying netgraph node type