IDCHECK(ADM) UNIX System V
Name
idcheck - returns selected information
Syntax
/etc/conf/bin/idcheck
Description
This command returns selected information about the system
configuration. It is useful in add-on device Driver
Software Package (DSP) installation scripts to determine if
a particular device driver has already been installed, or to
verify that a particular interrupt vector, I/O address or
other selectable parameter is in fact available for use.
The various forms are:
idcheck -p device-name [-i dir] [-r]
idcheck -v vector [-i dir] [-r]
idcheck -d dma-channel [-i dir] [-r]
idcheck -a -l lower_address -u upper_address [-i dir]
[-r]
idcheck -c -l lower_address -u upper_address [-i dir]
[-r]
This command scans the System and Master modules and
returns:
100 if an error occurs.
0 if no conflict exists.
a positive number greater than 0 and less than 100 if a
conflict exists.
The command line options are:
-r Report device name of any conflicting
device on stdout.
-p device-name This option checks for the existence of
four different components of the DSP. The
exit code is the addition of the return
codes from the four checks.
Add 1 to the exit code if the DSP directory
under /etc/conf/pack.d exists.
Add 2 to the exit code if the Master module
has been installed.
Add 4 to the exit code if the System module
has been installed.
Add 8 to the exit code if the Kernel was
built with the System module.
Add 16 to the exit code if a Driver.o is
part of the DSP (vs. a stubs.c file).
-v vector Returns ``type'' field of device that is
using the vector specified (i.e., another
DSP is already using the vector).
-d dma-channel Returns 1 if the dma channel specified is
being used.
-a This option checks whether the IOA region
bounded by ``lower'' and ``upper'' conflict
with another DSP (``lower'' and ``upper''
are specified with the -l and -u options).
The exit code is based on the first
conflicting device found.
The exit code is 1 if the IOA region
overlaps with another device.
The exit code is 2 if the IOA region
overlaps with another device and that
device has the 'O' option specified in the
type field of the Master module. The 'O'
option permits a driver to overlap the IOA
region of another driver.
-c Returns 1 if the CMA region bounded by
"lower" and "upper" conflict with another
DSP ("lower" and "upper" are specified with
the -l and -u options).
-l address Lower bound of address range specified in
hex. The leading 0x should not be
included.
-u address Upper bound of address range specified in
hex. The leading 0x should not be
included.
-i dir Specifies the directory in which the ID
files sdevice and mdevice reside. The
default directory is /etc/conf/cf.d.
Diagnostics
There are no error messages or checks for valid arguments to
options. idcheck interprets these arguments using the rules
of scanf(S) and queries the sdevice and mdevice files. For
example, if a letter is used in the place of a digit,
scanf(S) will translate the letter to 0. idcheck will then
use this value in its query.
See Also
idinstall(ADM), mdevice(F), sdevice(F)
(printed 8/23/89) IDCHECK(ADM)