Add in linsysfs. A linux 2.6 like sys filesystem to pacify the Linux

LSI MegaRAID SAS utility.

Sponsored by:		IronPort Systems
Man page help from:	brueffer

2 files changed, 87 insertions, 0 deletions

diff --git a/share/man/man5/Makefile b/share/man/man5/Makefile
index ec779069f561..d86b7cc5c328 100644
--- a/share/man/man5/Makefile
+++ b/share/man/man5/Makefile
@@ -32,6 +32,7 @@ MAN=	acct.5 \
 	libmap.conf.5 \
 	link.5 \
 	linprocfs.5 \
+	linsysfs.5 \
 	mailer.conf.5 \
 	make.conf.5 \
 	moduli.5 \
diff --git a/share/man/man5/linsysfs.5 b/share/man/man5/linsysfs.5
new file mode 100644
index 000000000000..8a32bb179304
--- /dev/null
+++ b/share/man/man5/linsysfs.5
@@ -0,0 +1,86 @@
+.\" Written by Garrett Wollman
+.\" This file is in the public domain.
+.\"
+.\" $FreeBSD$
+.\"
+.Dd May 6, 2006
+.Dt LINSYSFS 5
+.Os
+.Sh NAME
+.Nm linsysfs
+.Nd Linux system file system
+.Sh SYNOPSIS
+.Bd -literal
+linsys		/compat/linux/sys	linsysfs	rw 0 0
+.Ed
+.Sh DESCRIPTION
+The Linux system file system, or
+.Nm ,
+emulates a subset of the Linux sys file system and is required for
+the complete operation of some Linux binaries.
+.Pp
+The
+.Nm
+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 hierachy.
+PCI storage devices are listed in the scsi_host class with a device sym-link
+to the PCI directories of the devices.
+.Pp
+Each device node is a directory containing some files and directories:
+.Bl -tag -width status
+.It Pa host
+A place holder for storage
+.Pa host
+information.
+.It Pa pci_id
+A directory for the
+.Pa pci_id
+that contains either the device information or another directory structure
+for a PCI bridge.
+.El
+.Pp
+Each host node of scsi_host is a directory containing some files and directories:
+.Bl -tag -width proc_name
+.It Pa proc_name
+The Linux registered driver name for these devices.
+.It Pa device
+A sym-link to the PCI
+.Pa device
+directory.
+.El
+.Sh FILES
+.Bl -tag -width /compat/linux/sys/devices/pci0000:00 -compact
+.It Pa /compat/linux/sys
+The normal mount point for the
+.Nm .
+.It Pa /compat/linux/sys/class/scsi_host
+The storage host node.
+.It Pa /compat/linux/sys/devices/pci0000:00
+The PCI device hierarchy node.
+.El
+.Sh SEE ALSO
+.Xr mount 2 ,
+.Xr unmount 2 ,
+.Xr linprocfs 5 ,
+.Xr procfs 5 ,
+.Xr pseudofs 9
+.Sh HISTORY
+The
+.Nm
+first appeared in
+.Fx 7.0 .
+.Sh AUTHORS
+.An -nosplit
+The
+.Nm
+was derived from
+.Nm linprocfs
+by
+.An Doug Ambrisko .
+This manual page was edited by
+.An Doug Ambrisko ,
+based on the
+.Xr linprocfs 5
+manual page by
+.An Garrett Wollman .