linsysfs man page on FreeBSD

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LINSYSFS(5)		    BSD File Formats Manual		   LINSYSFS(5)

     linsysfs — Linux system file system

     linsys	     /compat/linux/sys	     linsysfs	     rw 0 0

     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

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

     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 infor‐
	     mation or another directory structure for a PCI bridge.

     Each host node of scsi_host is a directory containing some files and

     proc_name	The Linux registered driver name for these devices.

     device	A symlink to the PCI device directory.

     The most common usage follows:

	   mount -t linsysfs linsys /compat/linux/sys

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

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

     nmount(2), unmount(2), linprocfs(5), pseudofs(9)

     The linsysfs driver first appeared in FreeBSD 6.2.

     The linsysfs driver was derived from linprocfs by Doug Ambrisko.  This
     manual page was edited by Doug Ambrisko, based on the linprocfs(5) manual
     page by Garrett Wollman.

BSD			       February 5, 2007				   BSD

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