LCD(4) - Device Drivers Manual (luna88k) # LCD(4) - Device Drivers Manual (luna88k) NAME # lcd - front panel LCD display SYNOPSIS # lcd0 at mainbus0 DESCRIPTION # The lcd driver provides access to the front panel LCD display on LUNA-88K. It is accessed using write(2) to print the characters on the LCD. The device has a physical display area of 16 characters x 2 lines and an internal line buffer of 40 characters x 2 lines. ...
MPATH(4) - Device Drivers Manual # MPATH(4) - Device Drivers Manual NAME # mpath - SCSI multipath SYNOPSIS # emc* at scsibus? hds* at scsibus? rdac* at scsibus? sym* at scsibus? mpath0 at root DESCRIPTION # mpath provides access, I/O multiplexing, and failover support to SCSI logical units that can have multiple physical connections to the system. It uses connections presented by path drivers, for example sym(4), as backends to a single device attached to its own scsibus(4). ...
MT(1) - General Commands Manual # MT(1) - General Commands Manual NAME # mt, eject - magnetic tape and removable media manipulating program SYNOPSIS # mt [-f device] command [count] eject [-t] device DESCRIPTION # The mt utility sends commands to a magnetic tape drive. By default, mt performs the requested operation once. Operations may be performed multiple times by specifying count. Note that device must reference a raw (not block) tape device. ...
MTRR(4) - Device Drivers Manual (amd64) # MTRR(4) - Device Drivers Manual (amd64) NAME # mtrr - driver for CPU memory range attributes SYNOPSIS # pseudo-device mtrr 1 DESCRIPTION # The mtrr device provides access to the memory range attributes supported by the MTRRs on AMD64 compatible CPUs. IOCTL INTERFACE # Several architectures allow attributes to be associated with ranges of physical memory. These attributes can be manipulated via ioctl() calls performed on /dev/mem or /dev/xf86. ...
MTRR(4) - Device Drivers Manual (i386) # MTRR(4) - Device Drivers Manual (i386) NAME # mtrr - driver for CPU memory range attributes SYNOPSIS # pseudo-device mtrr 1 DESCRIPTION # The mtrr device provides access to the memory range attributes supported by the MTRRs on Pentiums. IOCTL INTERFACE # Several architectures allow attributes to be associated with ranges of physical memory. These attributes can be manipulated via ioctl() calls performed on /dev/mem or /dev/xf86. ...
NETINTRO(4) - Device Drivers Manual # NETINTRO(4) - Device Drivers Manual NAME # netintro - introduction to networking facilities SYNOPSIS # #include <sys/socket.h> #include <net/route.h> #include <net/if.h> DESCRIPTION # This section is a general introduction to the networking facilities available in the system. Documentation in this part of section 4 is broken up into three areas: protocol families (domains), protocols, and network interfaces. All network protocols are associated with a specific protocol family. ...
OCTBOOT(4) - Device Drivers Manual (octeon) # OCTBOOT(4) - Device Drivers Manual (octeon) NAME # octboot - kernel boot interface SYNOPSIS # pseudo-device octboot DESCRIPTION # The octboot driver provides an ioctl(2) interface for booting into another kernel from the currently running kernel. IOCTL INTERFACE # octboot provides the following ioctl(2) commands, available through <machine/octboot.h>: OBIOC_GETROOTDEV char rootdev[PATH_MAX] Get the name of the current root device. OBIOC_KEXEC struct octboot_kexec_args *args ...
OPENPROM(4) - Device Drivers Manual # OPENPROM(4) - Device Drivers Manual NAME # openprom - OPENPROM interface SYNOPSIS # #include <machine/openpromio.h> DESCRIPTION # The file /dev/openprom is an interface to the OPENPROM. This interface is highly stylized, ioctls are used for all operations. These ioctls refer to “nodes”, which are simply “magic” integer values describing data areas. Occasionally the number 0 may be used or returned instead, as described below. ...
PCEXMEM(4) - Device Drivers Manual (luna88k) # PCEXMEM(4) - Device Drivers Manual (luna88k) NAME # pcexmem, pcexio - NEC PC-9801 extension board slot SYNOPSIS # pcex0 at cbus0 DESCRIPTION # The file /dev/pcexmem is an mmap(2) capable interface to the memory area of the installed board at “NEC PC-9801 extension board slot” on LUNA-88K2. Byte offsets in this file are interpreted as relative memory addresses of the installed board. The range should be between 0x0 and 0xffffff. ...
PCTR(4) - Device Drivers Manual (amd64) # PCTR(4) - Device Drivers Manual (amd64) NAME # pctr - driver for CPU performance counters SYNOPSIS # pseudo-device pctr 1 DESCRIPTION # The pctr device provides access to the performance counters on AMD and Intel brand processors, and to the TSC on others. Intel processors have two 40-bit performance counters which can be programmed to count events such as cache misses, branch target buffer hits, TLB misses, dual-issues, interrupts, pipeline flushes, and more. ...