lssf(1M)

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 config to add the appropriate driver to the kernel (see config(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 config input file and a new kernel generated (see config(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 tape1 -H 8.6.1 -b 1600 -a rmt/c2t6d0m. The command lssf rmt/c2t6d0m then produces:

tape1 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

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