tail head cat sleep
QR code linking to this page

Manual Pages  — USB_TEMPLATE

NAME

usb_template – USB device side templates

CONTENTS

SYNOPSIS

To compile this module into the kernel, place the following line in your kernel configuration file: device usb_template

To load the module at boot time, place the following line in loader.conf(5):

usb_template_load="YES"

DESCRIPTION

The usb_template module implements various USB templates that are needed when programming an USB device side driver. A USB template consists of an USB device descriptor, one or more USB configuration descriptors, one or more USB interface descriptors, one or more USB endpoint descriptors, USB strings and additional USB descriptors. USB templates are selected using the hw.usb.template sysctl and tunable, or by using the usbconfig(8) set_template subcommand. Changing the hw.usb.template sysctl triggers reenumeration by the USB host; changes to other sysctls may not be visible to the host until reenumeration is performed.

Available templates are:
Value Description
0 USB Mass Storage, seecfumass(4)
1 CDC Ethernet, seecdce(4)
2 Media Transfer Protocol (MTP)
3 USB serial port, seeumodem(4)
4 USB audio
5 USB keyboard
6 USB mouse
7 USB phone
8 CDC Ethernet and serial port
9 USB MIDI
10 CDC Ethernet, serial port, and storage
11 CDC Ethernet Emulation Model, seecdceem(4)

SYSCTL VARIABLES

The following variables are available as both sysctl(8) variables and loader(8) tunables:
hw.usb.template
  Currently selected template. Set to -1 to make the device disappear from the USB host point of view.
hw.usb.template_power
  USB bus power consumption in mA at 5V. Must be between 0 and 500. Setting to 0 marks the device as self-powered. Defaults to 500mA.
hw.usb.templates.N
  Configuration for template number N.
hw.usb.templates.N.vendor_id
  16-bit vendor identifier (VID), usually assigned by USB-IF.
hw.usb.templates.N.product_id
  16-bit product identifier (PID).
hw.usb.templates.N.manufacturer
  String containing human-readable manufacturer name.
hw.usb.templates.N.product
  String containing human-readable product name.

SEE ALSO

cfumass(4), usb(4), usfs(4), usbconfig(8)

STANDARDS

The usb_template module complies to the USB 1.0, 2.0 and 3.0 standard.

HISTORY

The usb_template module was written by Hans Petter Selasky <Mt hselasky@FreeBSD.org>.

USB_TEMPLATE (4) August 7, 2019

tail head cat sleep
QR code linking to this page


Please direct any comments about this manual page service to Ben Bullock. Privacy policy.

Unix is a junk OS designed by a committee of PhDs.
— Dave Cutler