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LINSYSFS(4)		     Kernel Interfaces Manual		     LINSYSFS(4)

NAME
     linsysfs -- Linux kernel objects file system

SYNOPSIS
     linsysfs		     /compat/linux/sys	     linsysfs	     rw 0 0

DESCRIPTION
     The  Linux  system file system, or linsysfs, emulates a subset of the Linux
     sys file system and is required for the complete operation  of  some  Linux
     binaries.

     The  linsysfs  provides a two-level view of devices.  At the highest level,
     PCI devices themselves are named, according to their bus, slot and function
     in the system hierarchy.  PCI storage devices are listed in  the  scsi_host
     class with a device symlink to the PCI directories of the devices.

     Each device node is a directory containing some files and directories:

     host    A place holder for storage host information.

     pci_id  A directory for the pci_id that contains either the device informa-
	     tion or another directory structure for a PCI bridge.

     Each host node of scsi_host is a directory containing some files and direc-
     tories:

     proc_name	The Linux registered driver name for these devices.

     device	A symlink to the PCI device directory.

FILES
     /compat/linux/sys			   The normal mount point for linsysfs.
     /compat/linux/sys/class/scsi_host	   The storage host node.
     /compat/linux/sys/devices/pci0000:00  The PCI device hierarchy node.

EXAMPLES
     The most common usage follows:

	   mount -t linsysfs linsysfs /compat/linux/sys

     where /compat/linux/sys is a mount point.

SEE ALSO
     nmount(2), unmount(2), linprocfs(4), linux(4), pseudofs(9)

HISTORY
     The linsysfs driver first appeared in FreeBSD 6.2.

AUTHORS
     The linsysfs driver was derived from linprocfs by Doug Ambrisko.  This man-
     ual page was edited by Doug Ambrisko, based on the linprocfs(4) manual page
     by Garrett Wollman.

FreeBSD 15.1			November 13, 2019		     LINSYSFS(4)

Want to link to this manual page? Use this URL:
<https://man.freebsd.org/cgi/man.cgi?query=linsysfs&manpath=FreeBSD+15.1-RELEASE+and+Ports>

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