213 lines
6.4 KiB
Groff
213 lines
6.4 KiB
Groff
.\" $NetBSD: usbhidctl.1,v 1.15 2002/09/30 11:09:15 grant Exp $
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.\"
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.\" Copyright (c) 2001 The NetBSD Foundation, Inc.
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.\" All rights reserved.
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.\"
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.\" This code is derived from software contributed to The NetBSD Foundation
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.\" by David Sainty <David.Sainty@dtsp.co.nz>
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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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.\" 3. All advertising materials mentioning features or use of this software
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.\" must display the following acknowledgement:
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.\" This product includes software developed by the NetBSD
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.\" Foundation, Inc. and its contributors.
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.\" 4. Neither the name of The NetBSD Foundation nor the names of its
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.\" contributors may be used to endorse or promote products derived
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.\" from this software without specific prior written permission.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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.\" ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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.\" TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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.\" PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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.\" BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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.\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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.\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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.\" INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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.\" CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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.\" POSSIBILITY OF SUCH DAMAGE.
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.\"
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.Dd August 27, 2000
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.Dt USBHIDCTL 1
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.Os
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.Sh NAME
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.Nm usbhidctl
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.Nd manipulate USB HID devices
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.Sh SYNOPSIS
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.Nm ""
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.Fl f Ar device
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.Op Fl t Ar table
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.Op Fl l
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.Op Fl v
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.Fl a
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.Nm ""
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.Fl f Ar device
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.Op Fl t Ar table
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.Op Fl v
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.Fl r
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.Nm ""
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.Fl f Ar device
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.Op Fl t Ar table
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.Op Fl l
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.Op Fl n
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.Op Fl v
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.Op Ar item ...
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.Nm ""
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.Fl f Ar device
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.Op Fl t Ar table
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.Fl w
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.Op Ar item=value ...
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.Sh DESCRIPTION
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.Nm
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can be used to output or modify the state of a USB HID (Human Interface
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Device).
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If a list of items is present on the command line, then
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.Nm
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prints the current value of those items for the specified device.
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If the
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.Fl w
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flag is specified
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.Nm
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attempts to set the specified items to the given values.
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.Pp
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The options are as follows:
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.Bl -tag -width Ds
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.It Fl a
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Show all items and their current values.
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This option fails if the device does not support the GET_REPORT command.
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.It Fl f Ar device
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Specify a path name for the device to operate on.
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If
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.Ar device
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is numeric, it is taken to be the USB HID device number.
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If it is a relative
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path, it is taken to be the name of the device under
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.Pa /dev .
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An absolute path is taken to be the literal device pathname.
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.It Fl l
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Loop and dump the device data every time it changes.
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Only 'input' items are displayed in this mode.
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.It Fl n
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Suppress printing of the item name when querying specific items.
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Only output the current value.
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.It Fl r
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Dump the USB HID report descriptor.
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.It Fl t Ar table
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Specify a path name for the HID usage table file.
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.It Fl v
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Be verbose.
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Repeating this option increases verbosity.
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.It Fl w
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Change item values.
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Only 'output' and 'feature' kinds can be set with this
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option.
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.El
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.Sh FILES
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.Pa /usr/share/misc/usb_hid_usages
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The default HID usage table.
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.Sh SYNTAX
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.Nm
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parses the names of items specified on the command line against the human
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interface items reported by the USB device.
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Each human interface item is
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mapped from its native form to a human readable name, using the HID usage
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table file.
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Command line items are compared with the generated item names,
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and the USB HID device is operated on when a match is found.
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.Pp
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Each human interface item is named by the
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.Qq page
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it appears in, the
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.Qq usage
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within that page, and the list of
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.Qq collections
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containing the item.
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Each collection in turn is also identified by page, and
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the usage within that page.
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.Pp
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On the
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.Nm
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command line the page name is separated from the usage name with the character
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.Cm So : Sc .
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The collections are separated by the character
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.Cm So . Sc .
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.Pp
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As an alternative notation in items on the command line, the native numeric
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value for the page name or usage can be used instead of the full human
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readable page name or usage name.
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Numeric values can be specified in decimal,
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octal or hexadecimal.
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.Sh EXAMPLES
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On a standard USB mouse the item
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.Dl Generic_Desktop:Mouse.Generic_Desktop:Pointer.Button:Button_2
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reflects the current status of button 2.
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The
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.Qq button 2
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item is encapsulated within two collections, the
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.Qq Mouse
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collection in the
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.Qq Generic Desktop
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page, and the
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.Qq Pointer
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collection in the
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.Qq Generic Desktop
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page.
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The item itself is the usage
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.Qq Button_2
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in the
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.Qq Button
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page.
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.Pp
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An item can generally be named by omitting one or more of the page names.
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For example the
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.Qq button 2
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item would usually just be referred to on the command line as:
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.Dl usbhidctl -f /dev/mouse Mouse.Pointer.Button_2
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.Pp
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Items can also be named by referring to parts of the item name with the
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numeric representation of the native HID usage identifiers.
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This is most
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useful when items are missing from the HID usage table.
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The page identifier for the
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.Qq Generic Desktop
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page is 1, and the usage identifier for the usage
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.Qq Button_2
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is 2, so the following can be used to refer to the
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.Qq button 2
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item:
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.Dl usbhidctl -f /dev/mouse 1:Mouse.1:Pointer.Button:2
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.Pp
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Devices with human interface outputs can be manipulated with the
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.Fl w
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option.
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For example, some USB mice have a Light Emitting Diode under software
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control as usage 2 under page 0xffff, in the
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.Qq Mouse
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collection.
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The following can be used to switch this LED off:
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.Dl usbhidctl -f /dev/mouse -w Mouse.0xffff:2=0
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.Sh SEE ALSO
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.Xr usbhidaction 1 ,
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.Xr usbhid 3 ,
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.Xr uhid 4 ,
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.Xr usb 4
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.Sh HISTORY
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The
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.Nm
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command first appeared in
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.Nx 1.4 .
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.Sh AUTHORS
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.An David Sainty Aq David.Sainty@dtsp.co.nz
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.Sh BUGS
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Some USB HID devices report multiple items with exactly the same usage
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identifiers.
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The current naming scheme does not provide the means to specify
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which of a set of identically named items you are referring to.
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