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null(4) -- the null device
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The null device accepts and reads data as any ordinary (and willing) file, but throws it away. The length of the null device is always zero. |
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mac68k/obio(4) -- Mac68k onboard I/O bus device
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The obio interface serves as an abstraction used by the autoconfiguration system to help find and attach devices (e.g. the Ethernet or SCSI controllers) connected to the Macintosh onboard I/O bus. |
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ohci(4) -- USB Open Host Controller driver
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The ohci driver provides support for USB Open Host Controller Interface. |
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oosiop(4) -- Symbios/NCR 53C700 SCSI driver
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The oosiop driver provides support for the Symbios/NCR 53C700 SCSI controller chip. The Symbios/NCR 53C710 SCSI controller is handled by the osiop(4) driver, while the Symbios/NCR 53C8xx PCI SCSI host... |
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sparc64/openprom(4) -- OPENPROM interface
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The file /dev/openprom is an interface to the UltraSPARC OPENPROM. This interface is highly stylized; ioctls are used for all operations. These ioctls refer to ``nodes'', which are simply ``magic'... |
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sparc/openprom(4) -- OPENPROM and EEPROM interface
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The file /dev/openprom is an interface to the SPARC OPENPROM, including the EEPROM area. This interface is highly stylized; ioctls are used for all operations. These ioctls refer to ``nodes'', which... |
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opl(4) -- Yamaha OPL2 and OPL3 FM synthesizer driver
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The opl driver provides support for the Yamaha OPL2 (YM3812) and OPL3 (YMF262) chips. The chips are FM synthesizer and are capable of producing a wide range of (mostly awful) sounds. Access to the dev... |
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options(4) -- miscellaneous kernel configuration options
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This manual page describes a number of miscellaneous kernel configuration options that may be specified in a kernel config file. See config(8) for information on how to configure and build kernels. No... |
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osiop(4) -- Symbios/NCR 53C710 SCSI driver
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The osiop driver provides support for the Symbios/NCR 53C710 SCSI controller chip. The Symbios/NCR 53C700 SCSI controller is handled by the oosiop(4) driver, while the Symbios/NCR 53C8xx PCI SCSI host... |
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pccom(4) -- serial communications interface
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The com and pccom drivers provide support for NS8250-, NS16450-, NS16550-, ST16650-, and TI16750-based EIA RS-232C (CCITT V.28) communications interfaces. The pccom driver (i386-only) also supports th... |
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mvme88k/pcctwo(4) -- PCCchip2 local bus controller
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The pcctwo PCCchip2 ASIC provides an interface to the different local bus-attached I/O devices as found on some of the MVME88k Single-Board Computers. On MVME187 boards it is attached directly to the ... |
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pcdisplay(4) -- PC display adapter driver for wscons
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This driver supports PC display adapter hardware within the wscons(4) console framework. It doesn't provide direct device driver entry points but makes its functions available via the internal wsdisp... |
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pchb(4) -- PCI-Host Bridge
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The pchb driver provides support for PCI-Host adapter-specific functions for the following devices: i450 PCIset (Orion) Supports additional PCI busses. Reliance Computer ROSB4, CNB20HE, CNB20LE Suppor... |
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pci(4) -- introduction to PCI bus support
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The system includes a machine-independent PCI bus subsystem and several machine-independent PCI device drivers. Your system may support additional PCI devices. Drivers for PCI devices not listed here ... |
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pcib(4) -- PCI-ISA bridge
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The pcib driver supports generic PCI-ISA bridges. These devices are largely transparent and provide no user accessible entry points. |
