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.\" $FreeBSD$ 25.\" 26.Dd September 14, 2020 27.Dt HIDBUS 4 28.Os 29.Sh NAME 30.Nm hidbus 31.Nd generic HID bus driver 32.Sh SYNOPSIS 33To compile this driver into the kernel, 34place the following lines in your 35kernel configuration file: 36.Bd -ragged -offset indent 37.Cd "device hidbus" 38.Cd "device hid" 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 45hidbus_load="YES" 46.Ed 47.Sh DESCRIPTION 48The 49.Nm 50driver provides support for multiple HID driver attachments to single HID 51transport backend. 52See 53.Xr iichid 4 54or 55.Xr usbhid 4 . 56.Pp 57Each HID device can have several components, e.g., a keyboard and 58a mouse. 59These components use different report identifiers (a byte) combined into 60groups called collections to distinguish which one data is coming from. 61The 62.Nm 63driver has other drivers attached that handle particular 64kinds of devices and 65.Nm 66broadcasts data to all of them. 67.Sh SYSCTL VARIABLES 68The following variables are available as both 69.Xr sysctl 8 70variables and 71.Xr loader 8 72tunables: 73.Bl -tag -width indent 74.It Va hw.hid.hidbus.debug 75Debug output level, where 0 is debugging disabled and larger values increase 76debug message verbosity. 77Default is 0. 78.El 79.Sh SEE ALSO 80.Xr hconf 4 , 81.Xr hcons 4 , 82.Xr hgame 4 , 83.Xr hidraw 4 , 84.Xr hkbd 4 , 85.Xr hms 4 , 86.Xr hmt 4 , 87.Xr hpen 4 , 88.Xr hsctrl 4 , 89.Xr hskbd 4 , 90.Xr iichid 4 , 91.Xr usbhid 4 92.Sh HISTORY 93The 94.Nm 95driver first appeared in 96.Fx 13.0. 97.Sh AUTHORS 98.An -nosplit 99The 100.Nm 101driver was written by 102.An Vladimir Kondratyev Aq Mt wulf@FreeBSD.org . 103