MEM(4) - Device Drivers Manual (macppc) # MEM(4) - Device Drivers Manual (macppc) NAME # mem, kmem - memory files DESCRIPTION # The file /dev/mem is an interface to the physical memory of the computer. Byte offsets in this file are interpreted as physical memory addresses. Reading and writing this file is equivalent to reading and writing memory itself. An error will be returned if an attempt is made to reference an offset outside of /dev/mem. ...
MEM(4) - Device Drivers Manual (sparc64) # MEM(4) - Device Drivers Manual (sparc64) NAME # mem, kmem - memory files DESCRIPTION # The file /dev/mem is an interface to the physical memory of the computer. Byte offsets in this file are interpreted as physical memory addresses. Reading and writing this file is equivalent to reading and writing memory itself. An error will be returned if an attempt is made to reference an offset outside of /dev/mem. ...
RC(8) - System Manager’s Manual # RC(8) - System Manager’s Manual NAME # rc, rc.firsttime, rc.local, rc.securelevel - command scripts for system startup DESCRIPTION # rc is the command script that is invoked by init(8) when the system starts up. It performs system housekeeping chores and starts up system daemons. Additionally, rc is intricately tied to the netstart(8) script, which runs commands and daemons pertaining to the network. rc is also used to execute any rc. ...
SECURELEVEL(7) - Miscellaneous Information Manual # SECURELEVEL(7) - Miscellaneous Information Manual NAME # securelevel - securelevel and its effects DESCRIPTION # The OpenBSD kernel provides four levels of system security: -1 Permanently insecure mode init(8) will not attempt to raise the securelevel may only be set with sysctl(8) while the system is insecure otherwise identical to securelevel 0 0 Insecure mode used during bootstrapping and while the system is single-user all devices may be read or written subject to their permissions system file flags may be cleared with chflags(2) 1 Secure mode ...
XF86(4) - Device Drivers Manual # XF86(4) - Device Drivers Manual NAME # xf86 - X Window System aperture driver SYNOPSIS # option APERTURE DESCRIPTION # On the alpha, amd64, i386, macppc, and sparc64 architectures, the /dev/xf86 driver provides access to the memory and I/O ports of a VGA board and to the PCI configuration registers for use by the X servers when running with a kernel security level greater than 0. ...