1.\" Copyright (c) 2020 Vladimir Kondratyev <wulf@FreeBSD.org> 2.\" 3.\" Redistribution and use in source and binary forms, with or without 4.\" modification, are permitted provided that the following conditions 5.\" are met: 6.\" 1. Redistributions of source code must retain the above copyright 7.\" notice, this list of conditions and the following disclaimer. 8.\" 2. Redistributions in binary form must reproduce the above copyright 9.\" notice, this list of conditions and the following disclaimer in the 10.\" documentation and/or other materials provided with the distribution. 11.\" 12.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 13.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 14.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 15.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 16.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 17.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 18.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 19.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 20.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 21.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 22.\" SUCH DAMAGE. 23.\" 24.Dd October 2, 2025 25.Dt USBHID 4 26.Os 27.Sh NAME 28.Nm usbhid 29.Nd USB HID transport driver 30.Sh SYNOPSIS 31To compile this driver into the kernel, 32place the following lines in your 33kernel configuration file: 34.Bd -ragged -offset indent 35.Cd "device usbhid" 36.Ed 37.Pp 38Alternatively, to load the driver as a 39module at boot time, place the following line in 40.Xr loader.conf 5 : 41.Bd -literal -offset indent 42usbhid_load="YES" 43.Ed 44.Sh DESCRIPTION 45The 46.Nm 47driver provides a interface to USB Human Interface Devices (HIDs). 48.Sh SYSCTL VARIABLES 49The following variables are available as both 50.Xr sysctl 8 51variables and 52.Xr loader 8 53tunables: 54.Bl -tag -width indent 55.It Va hw.usb.usbhid.enable 56Enable 57.Nm 58and make its priority greater than other USB HID drivers, such as 59.Xr ukbd 4 , 60.Xr ums 4 , 61and 62.Xr uhid 4 . 63Default is 1. 64.El 65.Bl -tag -width indent 66.It Va hw.usb.usbhid.debug 67Debug output level, where 0 is debugging disabled and larger values increase 68debug message verbosity. 69Default is 0. 70Debug messages are printed on the system console and can be viewed using 71.Xr dmesg 8 . 72.El 73.Sh SEE ALSO 74.Xr ehci 4 , 75.Xr hkbd 4 , 76.Xr hms 4 , 77.Xr ohci 4 , 78.Xr uhci 4 , 79.Xr usb 4 , 80.Xr xhci 4 , 81.Xr usbconfig 8 82.Sh HISTORY 83The 84.Nm 85driver first appeared in 86.Fx 13.0 . 87It was enabled by default in 88.Fx 15.0 . 89.Sh AUTHORS 90.An -nosplit 91The 92.Nm 93driver was written by 94.An Vladimir Kondratyev Aq Mt wulf@FreeBSD.org . 95