NAME
lssf — list a special file
SYNOPSIS
/sbin/lssf
special_file ...
DESCRIPTION
lssf
lists information about a special file.
For each
special_file
name,
lssf
determines the major number of the special file and
whether it is block or character (using
stat(2)).
It then scans the system for the device
that is associated with the special file.
When the device is found,
the minor number of the special file is decoded.
A mnemonic description of the minor number
is printed on standard output along with the hardware path
(i.e., address) of the device.
Mnemonics used to describe the fields
are closely related to the options used with
mksf
(see
mksf(1M)).
DIAGNOSTICS
Most diagnostic messages from
lssf
are self explanatory.
Listed below are some messages deserving further clarification.
Warnings allow
lssf
to continue.
Warnings
- No such device in the system
There is no information about the device in the kernel.
The special file is not usable.
Use
rmsf
to remove the special file (see
rmsf(1M)).
- Character major <major> is not in the kernel
- Block major <major> is not in the kernel
The major number associated with the special file is not in the kernel.
Use
kcmodule
to add the appropriate driver to the kernel (see
kcmodule(1M)).
- Device driver <name> is not in the kernel
- Device class <name> is not in the kernel
The indicated device driver or device class
is not present in the kernel.
An
open()
of a special file pointing to an unusable device fails.
To make the device usable,
the appropriate device driver and/or device class must be added to the
kernel using
kcmodule(1M)).
If the device is no longer needed,
rmsf
should be used to remove the special files and update
/etc/ioconfig.
- <special_file> is not a special file
The file is not associated with an I/O device.
EXAMPLES
Suppose a special file is created with the command
mksf -d tape2 -H 8.6.1 -b 1600 -a rmt/c2t6d0m.
The command
lssf rmt/c2t6d0m
then produces:
tape2 instance 2 bpi 1600 att address 8.6.1 rmt/c2t6d0m
AUTHOR
lssf
was developed by HP.
FILES
- /dev/config
I/O system special file
- /etc/ioconfig
I/O system configuration database
