xref: /freebsd/share/man/man4/ukbd.4 (revision fcb560670601b2a4d87bb31d7531c8dcc37ee71b)
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25.\" $FreeBSD$
26.\"
27.Dd November 22, 2006
28.Dt UKBD 4
29.Os
30.Sh NAME
31.Nm ukbd
32.Nd USB keyboard driver
33.Sh SYNOPSIS
34To compile this driver into the kernel,
35place the following line in your
36kernel configuration file:
37.Bd -ragged -offset indent
38.Cd "device ukbd"
39.Ed
40.Pp
41Alternatively, to load the driver as a
42module at boot time, place the following line in
43.Xr loader.conf 5 :
44.Bd -literal -offset indent
45ukbd_load="YES"
46.Ed
47.Sh DESCRIPTION
48The
49.Nm
50driver provides support for keyboards that attach to the USB port.
51.Xr usb 4
52and one of
53.Xr uhci 4
54or
55.Xr ohci 4
56must be configured in the kernel as well.
57.Sh CONFIGURATION
58By default, the keyboard subsystem does not create the appropriate devices yet.
59Make sure you reconfigure your kernel with the following option in the kernel
60config file:
61.Pp
62.Dl "options KBD_INSTALL_CDEV"
63.Pp
64If both an AT keyboard USB keyboards are used at the same time, the
65AT keyboard will appear as
66.Pa kbd0
67in
68.Pa /dev .
69The USB keyboards will be
70.Pa kbd1 , kbd2 ,
71etc.
72You can see some information about the keyboard with the following command:
73.Pp
74.Dl "kbdcontrol -i < /dev/kbd1"
75.Pp
76or load a keymap with
77.Pp
78.Dl "kbdcontrol -l keymaps/pt.iso < /dev/kbd1"
79.Pp
80See
81.Xr kbdcontrol 1
82for more possible options.
83.Pp
84You can swap console keyboards by using the command
85.Pp
86.Dl "kbdcontrol -k /dev/kbd1"
87.Pp
88From this point on, the first USB keyboard will be the keyboard
89to be used by the console.
90.Pp
91If you want to use a USB keyboard as your default and not use an AT keyboard at
92all, you will have to remove the
93.Cd "device atkbd"
94line from the kernel configuration file.
95Because of the device initialization order,
96the USB keyboard will be detected
97.Em after
98the console driver
99initializes itself and you have to explicitly tell the console
100driver to use the existence of the USB keyboard.
101This can be done in
102one of the following two ways.
103.Pp
104Run the following command as a part of system initialization:
105.Pp
106.Dl "kbdcontrol -k /dev/kbd0 < /dev/ttyv0 > /dev/null"
107.Pp
108(Note that as the USB keyboard is the only keyboard, it is accessed as
109.Pa /dev/kbd0 )
110or otherwise tell the console driver to periodically look for a
111keyboard by setting a flag in the kernel configuration file:
112.Pp
113.Dl "device sc0 at isa? flags 0x100"
114.Pp
115With the above flag, the console driver will try to detect any
116keyboard in the system if it did not detect one while it was
117initialized at boot time.
118.Sh DRIVER CONFIGURATION
119.D1 Cd "options KBD_INSTALL_CDEV"
120.Pp
121Make the keyboards available through a character device in
122.Pa /dev .
123.Pp
124.D1 Cd options UKBD_DFLT_KEYMAP
125.D1 Cd makeoptions UKBD_DFLT_KEYMAP=fr.iso
126.Pp
127The above lines will put the French ISO keymap in the ukbd driver.
128You can specify any keymap in
129.Pa /usr/share/syscons/keymaps
130or
131.Pa /usr/share/vt/keymaps
132(depending on the console driver being used) with this option.
133.Pp
134.D1 Cd "options KBD_DISABLE_KEYMAP_LOADING"
135.Pp
136Do not allow the user to change the keymap.
137Note that these options also affect the AT keyboard driver,
138.Xr atkbd 4 .
139.Sh FILES
140.Bl -tag -width ".Pa /dev/kbd*" -compact
141.It Pa /dev/kbd*
142blocking device nodes
143.El
144.Sh EXAMPLES
145.D1 Cd "device ukbd"
146.Pp
147Add the
148.Nm
149driver to the kernel.
150.Sh SEE ALSO
151.Xr kbdcontrol 1 ,
152.Xr ohci 4 ,
153.Xr syscons 4 ,
154.Xr uhci 4 ,
155.Xr usb 4 ,
156.Xr vt 4 ,
157.Xr config 8
158.Sh AUTHORS
159.An -nosplit
160The
161.Nm
162driver was written by
163.An Lennart Augustsson Aq Mt augustss@cs.chalmers.se
164for
165.Nx
166and was substantially rewritten for
167.Fx
168by
169.An Kazutaka YOKOTA Aq Mt yokota@zodiac.mech.utsunomiya-u.ac.jp .
170.Pp
171This manual page was written by
172.An Nick Hibma Aq Mt n_hibma@FreeBSD.org
173with a large amount of input from
174.An Kazutaka YOKOTA Aq Mt yokota@zodiac.mech.utsunomiya-u.ac.jp .
175