PNPDUMP

NAME

pnpdump - Dump ISA Plug-And-Play devices resource information

SYNOPSIS

pnpdump [ [ devs ] readport ]  

DESCRIPTION

pnpdump will scan all the ISA PnP cards, dumping their resource data to stdout.

The output is in a form that can be used by isapnp, except that the actual configuration statements are commented out. See isapnp.conf(5) for details of the format.

By default, pnpdump will reset all the cards into the inactive state, then ISOLATE each one and allocate it a handle (Card Select Number). This process will include trying different readport addresses until a suitable one is found avoiding conflicts with other hardware.

If a single parameter is provided, this will be used as the minimum readport address to start scanning. This may be chosen to avoid an unfortunate conflict.

Resetting the cards may be undesireable, in which case both additional parameters may be supplied:  

Parameters

devs is the number of PnP cards that the BIOS has found,
ISOLATEd and allocated CSNs to in the system. Note that if this is greater than the actual number of cards in the system, pnpdump will stop scanning when it receives a first serial identifier byte of 0xff (this is what happens when there isn't a card with that CSN).

If this parameter is provided, then pnpdump will not ISOLATE each card and assign CSNs, however, the readport provided must be the same as the one the BIOS used. This could be difficult to determine if it is not assigned via a BIOS setup screen.

readport is the address of the readport to use for the
Plug-And-Play access. The number base is determined by the format: a leading 0x implies hex, a leading 0 implies octal, otherwise decimal is assumed.

The address of the readport must be chosen to avoid any conflicts with existing (non Plug and Play) hardware, and must be in the range 0x203..0x3ff.

If the readport is specified without devs, then this is the minimum readport to use when scanning for a suitable one.

Note that for the two parameter option to work, you must have a PnP BIOS which has already carried out the ISOLATION process correctly, and you must know what readport address the BIOS used.  

FILES

/sbin/pnpdump
The executable.
/etc/isapnp.conf
The resting place of the editted output.
 

BUGS

None known about. If you think you have found one, please send a report to isapnp@roestock.demon.co.uk.  

WARNING

This program can reset all your Plug-and-Play devices. Use at your own risk.  

AUTHOR

pnpdump has been written by Peter Fox <fox@roestock.demon.co.uk>, the creator and maintainer of isapnptools.  

AVAILABILITY

The latest version of the sources may be obtained by ftp from ftp://ftp.demon.co.uk/pub/unix/linux/utils
Or follow the pointer from my web page at http://www.roestock.demon.co.uk/isapnptools/  

REFERENCES

Plug and Play ISA Specification, Version 1.0a, May 5, 1994. Available from ftp://ftp.microsoft.com/developer/drg/Plug-and-Play/Pnpspecs  

SEE ALSO

isapnp(8), isapnp.conf(5)