xref: /freebsd/share/man/man4/ukbd.4 (revision 1e413cf93298b5b97441a21d9a50fdcd0ee9945e)
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28.\" $FreeBSD$
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30.Dd November 22, 2006
31.Dt UKBD 4
32.Os
33.Sh NAME
34.Nm ukbd
35.Nd USB keyboard driver
36.Sh SYNOPSIS
37To compile this driver into the kernel,
38place the following line in your
39kernel configuration file:
40.Bd -ragged -offset indent
41.Cd "device ukbd"
42.Ed
43.Pp
44Alternatively, to load the driver as a
45module at boot time, place the following line in
46.Xr loader.conf 5 :
47.Bd -literal -offset indent
48ukbd_load="YES"
49.Ed
50.Sh DESCRIPTION
51The
52.Nm
53driver provides support for keyboards that attach to the USB port.
54.Xr usb 4
55and one of
56.Xr uhci 4
57or
58.Xr ohci 4
59must be configured in the kernel as well.
60.Sh CONFIGURATION
61By default, the keyboard subsystem does not create the appropriate devices yet.
62Make sure you reconfigure your kernel with the following option in the kernel
63config file:
64.Pp
65.Dl "options KBD_INSTALL_CDEV"
66.Pp
67If both an AT keyboard USB keyboards are used at the same time, the
68AT keyboard will appear as
69.Pa kbd0
70in
71.Pa /dev .
72The USB keyboards will be
73.Pa kbd1 , kbd2 ,
74etc.
75You can see some information about the keyboard with the following command:
76.Pp
77.Dl "kbdcontrol -i < /dev/kbd1"
78.Pp
79or load a keymap with
80.Pp
81.Dl "kbdcontrol -l keymaps/pt.iso < /dev/kbd1"
82.Pp
83See
84.Xr kbdcontrol 1
85for more possible options.
86.Pp
87You can swap console keyboards by using the command
88.Pp
89.Dl "kbdcontrol -k /dev/kbd1"
90.Pp
91From this point on, the first USB keyboard will be the keyboard
92to be used by the console.
93.Pp
94If you want to use a USB keyboard as your default and not use an AT keyboard at
95all, you will have to remove the
96.Cd "device atkbd"
97line from the kernel configuration file.
98Because of the device initialization order,
99the USB keyboard will be detected
100.Em after
101the console driver
102initializes itself and you have to explicitly tell the console
103driver to use the existence of the USB keyboard.
104This can be done in
105one of the following two ways.
106.Pp
107Run the following command as a part of system initialization:
108.Pp
109.Dl "kbdcontrol -k /dev/kbd0 < /dev/ttyv0 > /dev/null"
110.Pp
111(Note that as the USB keyboard is the only keyboard, it is accessed as
112.Pa /dev/kbd0 )
113or otherwise tell the console driver to periodically look for a
114keyboard by setting a flag in the kernel configuration file:
115.Pp
116.Dl "device sc0 at isa? flags 0x100"
117.Pp
118With the above flag, the console driver will try to detect any
119keyboard in the system if it did not detect one while it was
120initialized at boot time.
121.Sh DRIVER CONFIGURATION
122.D1 Cd "options KBD_INSTALL_CDEV"
123.Pp
124Make the keyboards available through a character device in
125.Pa /dev .
126.Pp
127.D1 Cd options UKBD_DFLT_KEYMAP
128.D1 Cd makeoptions UKBD_DFLT_KEYMAP=fr.iso
129.Pp
130The above lines will put the French ISO keymap in the ukbd driver.
131You can specify any keymap in
132.Pa /usr/share/syscons/keymaps
133with this option.
134.Pp
135.D1 Cd "options KBD_DISABLE_KEYMAP_LOADING"
136.Pp
137Do not allow the user to change the keymap.
138Note that these options also affect the AT keyboard driver,
139.Xr atkbd 4 .
140.Sh FILES
141.Bl -tag -width ".Pa /dev/kbd*" -compact
142.It Pa /dev/kbd*
143blocking device nodes
144.El
145.Sh EXAMPLES
146.D1 Cd "device ukbd"
147.Pp
148Add the
149.Nm
150driver to the kernel.
151.Sh SEE ALSO
152.Xr kbdcontrol 1 ,
153.Xr ohci 4 ,
154.Xr syscons 4 ,
155.Xr uhci 4 ,
156.Xr usb 4 ,
157.Xr config 8
158.Sh AUTHORS
159.An -nosplit
160The
161.Nm
162driver was written by
163.An Lennart Augustsson Aq augustss@cs.chalmers.se
164for
165.Nx
166and was substantially rewritten for
167.Fx
168by
169.An Kazutaka YOKOTA Aq yokota@zodiac.mech.utsunomiya-u.ac.jp .
170.Pp
171This manual page was written by
172.An Nick Hibma Aq n_hibma@FreeBSD.org
173with a large amount of input from
174.An Kazutaka YOKOTA Aq yokota@zodiac.mech.utsunomiya-u.ac.jp .
175