INTRO(7) SysV INTRO(7)
NAME
intro - introduction to special files
DESCRIPTION
This section describes various special files that refer to specific
hardware peripherals and device drivers. STREAMS (see intro(2)) software
drivers, modules, and the STREAMS-generic set of ioctl(2) system calls
are also described.
For hardware related files, the names of the entries are generally
derived from names for the hardware, as opposed to the names of the
special files themselves. Characteristics of both the hardware device
and the corresponding device driver are discussed where applicable.
Disk device file names are in the following format:
/dev/{r}dsk/c#d#s#
where r indicates a raw interface to the disk, the c# indicates the
controller number, d# indicates the device attached to the controller and
s# indicates the section number of the partitioned device.