4a53357f4d
The device list hasn't aged well. All these devices are over a decade old. umass supports thunb drives almost universally, and the list is too long to try to list here. Remove some obsolete advice as well. This isn't the place to talk about how to create FAT filesystems, nor now to mount them. The only advice that's still useful is the rescanning of a multi-slot flash adapater. MFC After: 3 days
119 lines
3.1 KiB
Groff
119 lines
3.1 KiB
Groff
.\" Copyright (c) 1999
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.\" Nick Hibma <n_hibma@FreeBSD.org>. 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 January 27, 2020
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.Dt UMASS 4
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.Os
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.Sh NAME
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.Nm umass
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.Nd USB Mass Storage Devices driver
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.Sh SYNOPSIS
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To compile this driver into the kernel,
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place the following line in your
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kernel configuration file:
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.Bd -ragged -offset indent
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.Cd "device scbus"
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.Cd "device usb"
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.Cd "device umass"
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.Ed
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.Pp
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Alternatively, to load the driver as a
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module at boot time, place the following line in
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.Xr loader.conf 5 :
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.Bd -literal -offset indent
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umass_load="YES"
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.Ed
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.Sh DESCRIPTION
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The
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.Nm
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driver provides support for Mass Storage devices that attach to the USB
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port.
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.Pp
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To use the
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.Nm
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driver,
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.Xr usb 4
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and one of
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.Xr uhci 4
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or
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.Xr ohci 4
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or
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.Xr ehci 4
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or
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.Xr xhci 4
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must be configured in the kernel.
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Additionally, since
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.Nm
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uses the SCSI subsystem and sometimes acts as a SCSI device, it
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requires
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.Xr da 4
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and
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.Xr scbus 4
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to be included in the kernel.
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.Sh EXAMPLES
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.Bd -literal -offset indent
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device umass
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device scbus
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device da
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device pass
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.Ed
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.Pp
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Add the
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.Nm
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driver to the kernel.
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.Pp
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.Bd -literal -offset indent
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camcontrol rescan 0:0:0
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camcontrol rescan 0:0:1
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camcontrol rescan 0:0:2
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camcontrol rescan 0:0:3
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.Ed
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.Pp
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Rescan all slots on a multi-slot flash reader, where the slots map to separate
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LUNs on a single SCSI ID.
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Typically only the first slot will be enabled at boot time.
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This assumes that the flash reader is the first SCSI bus in the system and has 4 slots.
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.Sh SEE ALSO
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.Xr cfumass 4 ,
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.Xr ehci 4 ,
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.Xr ohci 4 ,
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.Xr uhci 4 ,
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.Xr usb 4 ,
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.Xr xhci 4 ,
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.Xr camcontrol 8
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.\".Sh HISTORY
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.Sh AUTHORS
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.An -nosplit
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The
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.Nm
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driver was written by
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.An MAEKAWA Masahide Aq Mt bishop@rr.iij4u.or.jp
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and
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.An Nick Hibma Aq Mt n_hibma@FreeBSD.org .
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.Pp
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This manual page was written by
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.An Nick Hibma Aq Mt n_hibma@FreeBSD.org .
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