lsdev(1m) [hpux man page]

lsdev(1M)																 lsdev(1M)

NAME

       lsdev - list device drivers in the system

SYNOPSIS

       driver | class] block_major] char_major] major] [major ...]

DESCRIPTION

       The  command lists, one pair per line, the major device numbers and driver names of device drivers configured into the system and available
       for invocation via special files.  A in either the block or character column means that a major number does not exist for that type.

       If no arguments are specified, lists all drivers configured into the system.

       If the option is specified, will not print a heading.  This option may be useful when the output of will be used by another program.

       The and options are used to select specific device drivers for output.  If more than one option is specified, all drivers  that	match  the
       criteria  specified  by	those options will be listed.  These search options are divided into two types: name search keys (the and options)
       and major number search keys (the and options).	If both types of options are present, only entries that match both types are printed.  The
       same  type of option may appear more than once on the command line with each occurrence providing an ORing effect of that search type.  The
       and options may not be specified at the same time.

       The ability to process major arguments is provided for compatibility and functions like the option.

   Options
	      List device drivers that match
				  class.

	      List device drivers with the name
				  driver.

	      List device drivers with a block major number of
				  block_major.

	      List device drivers with a character major number of
				  char_major.

	      List device drivers with either a character
				  major number or block major equal to major.

DIAGNOSTICS

       The    and options may not be specified at the same time.

       A major number is malformed or out of range.

EXAMPLES

       To output entries for all drivers in the class:

       To output entries that are in the class that have either a block or character major number of

       To get the character major number of into a shell environment variable:

WARNINGS

       Some device drivers available from the system may be intended for use by other drivers.	Attempting to use them	directly  from	a  special
       file may produce unexpected results.

       A  driver  may be listed even when the hardware requiring the driver is not present.  Attempts to access a driver without the corresponding
       hardware will fail.

       only lists drivers that are configured into the currently executing kernel.  For a complete list of  available  drivers,  please  run  (see
       sam(1M).

DEPENDENCIES

       Since relies on the device driver information provided in a routine, may not list drivers installed by other means.

AUTHOR

       was developed by HP.

SEE ALSO

       sam(1M).

       Section 7 entries related to specific device drivers.

																	 lsdev(1M)

Check Out this Related Man Page

devswmgr(8)						      System Manager's Manual						       devswmgr(8)

NAME

       devswmgr - utility to manage the device switch database

SYNOPSIS

       /sbin/devswmgr [-option [parameter]]

OPTIONS

       Displays the following information about the device switch database:

	      Whether a device switch database was read from the primary file or from a backup file

	      The number of entries that are in the device switch table Displays the major numbers that have been reserved by all drivers, a named
	      driver, or an instance of a named driver.

	      A driver that requires more than one entry in the device switch table uses a unique instance number to reference each of its  device
	      switch  table  entries.	Displays  help	for  the devswmgr command.  Releases all the major numbers for a device driver if just the
	      driver name is specified.  Releases one major number for a device driver if the NAME and the INSTANCENUM of the  driver  are  speci-
	      fied.

DESCRIPTION

       The devswmgr command helps you manage the device switch table by displaying information about the devices drivers in the table.

       You  can  also  use  the  command  to  release device switch table entries.  Typically, you release the entries for a driver after you have
       unloaded the driver and do not plan to reload it later.	Releasing the entries frees them for use by other device drivers.

EXAMPLES

       The following example shows that a device switch table was loaded from the  primary  device  and  that  there  are  70  entries	in  it:  %
       /sbin/devswmgr -display Device switch information
	 device switch database read from primary file
	 device  switch  table has 70 entries The following example shows the major numbers in the device switch table that have been reserved for
       the driver named cam_disk: % /sbin/devswmgr -getnum driver=cam_disk

       Device switch reservation list

						 (*=entry in use)
		   driver name		   instance   major
	 -------------------------------   --------   -----
				cam_disk	  1	 8*

FILES

       The file that manages the device switch databases The primary device switch database file The backup device switch database file

SEE ALSO

       Commands: scsimgr(8)

																       devswmgr(8)

Linux and UNIX Man Pages

lsdev(1m) [hpux man page]

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