15f4d13e5b
atapicd(4) was replaced by cd(4) with the atacam work done by mav@ and then removed in r249083 X-MFC to: stable/10 MFC after: 2 weeks
139 lines
3.6 KiB
Groff
139 lines
3.6 KiB
Groff
.\" Copyright (c) 2004 Roland Smith <rsmith@xs4all.nl>
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.\" All rights reserved.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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.\" $FreeBSD$
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.\"
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.Dd October 13, 2015
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.Dt DEVFS.CONF 5
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.Os
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.Sh NAME
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.Nm devfs.conf
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.Nd boot-time devfs configuration information
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.Sh DESCRIPTION
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The
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.Nm
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file provides an easy way to set ownership and permissions, or create
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links for devices available at boot.
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.Pp
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It does not work for devices plugged in and out after the system is up
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and running, e.g.\& USB devices.
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See
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.Xr devfs.rules 5
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for setting ownership and permissions for all device nodes, and
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.Xr devd.conf 5
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for actions to be taken when devices are attached or detached.
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.Pp
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Lines starting with a hash sign
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.Pq Ql #
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and empty lines are ignored.
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The lines that specify
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.Nm
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rules consist of three parameters separated by whitespace:
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.Bl -tag -width indent
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.It Ar action
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The action to take for the device.
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The action names are only significant to the first unique character.
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.It Ar devname
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The name of the device created by
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.Xr devfs 5 .
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.It Ar arg
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The argument of the
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.Ar action .
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.El
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.Pp
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The actions currently supported are:
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.Bl -tag -width indent
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.It Ic link
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This action creates a symbolic link named
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.Ar arg
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that points to
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.Ar devname ,
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the name of the device created by
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.Xr devfs 5 .
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.It Ic own
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This action changes the ownership of
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.Ar devname .
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The
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.Ar arg
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parameter must be in the form of an
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.Ar owner Ns : Ns Ar group
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pair, in the same format used by
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.Xr chown 8 .
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.It Ic perm
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This action changes the permissions of
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.Ar devname .
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The
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.Ar arg
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parameter must be a
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.Ar mode
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as explained in
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.Xr chmod 1 .
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.El
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.Sh FILES
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.Bl -tag -compact -width Pa
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.It Pa /etc/devfs.conf
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.It Pa /usr/share/examples/etc/devfs.conf
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.El
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.Sh EXAMPLES
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To create a
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.Pa /dev/cdrom
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link that points to the first
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.Xr SCSI 4
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CD-ROM,
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the following may be added to
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.Nm :
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.Bd -literal -offset indent
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link cd0 cdrom
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.Ed
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.Pp
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Similarly, to link
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.Pa /dev/cdrom
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to the first SCSI CD-ROM device, the following action may be used:
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.Bd -literal -offset indent
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link cd0 cdrom
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.Ed
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.Pp
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To set the owner of a device, the
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.Ic own
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action may be specified:
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.Bd -literal -offset indent
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own cd0 root:cdrom
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.Ed
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.Pp
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To set the permissions of a device, a
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.Ic perm
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action should be used:
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.Bd -literal -offset indent
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perm cd0 0660
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.Ed
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.Sh SEE ALSO
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.Xr chmod 1 ,
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.Xr devd.conf 5 ,
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.Xr devfs 5 ,
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.Xr devfs.rules 5 ,
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.Xr chown 8
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.Sh AUTHORS
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This manual page was written by
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.An Roland Smith Aq Mt rsmith@xs4all.nl .
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