xref: /freebsd/share/man/man4/usb_template.4 (revision 206b73d0)
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26.Dd August 7, 2019
27.Dt USB_TEMPLATE 4
28.Os
29.
30.Sh NAME
31.
32.
33.Nm usb_template
34.
35.Nd "USB device side templates"
36.
37.
38.Sh SYNOPSIS
39To compile this module into the kernel, place the following line in
40your kernel configuration file:
41.Bd -ragged -offset indent
42.Cd "device usb_template"
43.Ed
44.Pp
45To load the module at boot time, place the following line in
46.Xr loader.conf 5 :
47.Bd -literal -offset indent
48usb_template_load="YES"
49.Ed
50.
51.Sh DESCRIPTION
52The
53.Nm
54module implements various USB templates that are needed when
55programming an USB device side driver.
56.
57A USB template consists of an USB device descriptor, one or more USB
58configuration descriptors, one or more USB interface descriptors, one
59or more USB endpoint descriptors, USB strings and additional USB
60descriptors.
61.
62USB templates are selected using the
63.Va hw.usb.template
64sysctl and tunable,
65or by using the
66.Xr usbconfig 8
67.Cm set_template
68subcommand.
69Changing the
70.Va hw.usb.template
71sysctl triggers reenumeration by the USB host; changes to other sysctls
72may not be visible to the host until reenumeration is performed.
73.Pp
74Available templates are:
75.Bl -column -offset 3n "Value"
76.It Em Value Ta Em Description
77.It Dv 0 Ta USB Mass Storage, see
78.Xr cfumass 4
79.It Dv 1 Ta CDC Ethernet, see
80.Xr cdce 4
81.It Dv 2 Ta Media Transfer Protocol (MTP)
82.It Dv 3 Ta USB serial port, see
83.Xr umodem 4
84.It Dv 4 Ta USB audio
85.It Dv 5 Ta USB keyboard
86.It Dv 6 Ta USB mouse
87.It Dv 7 Ta USB phone
88.It Dv 8 Ta CDC Ethernet and serial port
89.It Dv 9 Ta USB MIDI
90.It Dv 10 Ta CDC Ethernet, serial port, and storage
91.It Dv 11 Ta CDC Ethernet Emulation Model, see
92.Xr cdceem 4
93.El
94.
95.Sh SYSCTL VARIABLES
96The following variables are available as both
97.Xr sysctl 8
98variables and
99.Xr loader 8
100tunables:
101.Bl -tag -width indent
102.It Va hw.usb.template
103Currently selected template.
104Set to -1 to make the device disappear from the USB host point of view.
105.It Va hw.usb.template_power
106USB bus power consumption in mA at 5V.
107Must be between 0 and 500.
108Setting to 0 marks the device as self-powered.
109Defaults to 500mA.
110.It Va hw.usb.templates.N
111Configuration for template number
112.Va N .
113.It Va hw.usb.templates.N.vendor_id
11416-bit vendor identifier (VID), usually assigned by USB-IF.
115.It Va hw.usb.templates.N.product_id
11616-bit product identifier (PID).
117.It Va hw.usb.templates.N.manufacturer
118String containing human-readable manufacturer name.
119.It Va hw.usb.templates.N.product
120String containing human-readable product name.
121.El
122.Sh SEE ALSO
123.Xr cfumass 4 ,
124.Xr usb 4 ,
125.Xr usfs 4 ,
126.Xr usbconfig 8
127.Sh STANDARDS
128The
129.Nm
130module complies to the USB 1.0, 2.0 and 3.0 standard.
131.Sh HISTORY
132The
133.Nm
134module was written by
135.An Hans Petter Selasky Aq Mt hselasky@FreeBSD.org .
136