Manual Pages  — USBCONFIG

usbconfig – configure the USB subsystem

SYNOPSIS DESCRIPTION EXAMPLES SEE ALSO

usbconfig [-u unit] [-a addr] [-i interface_index] [-v] [cmds...]
usbconfig -d [[/dev/]ugen]<unit>.<addr> [-i interface_index] [-v] [cmds...]

The usbconfig utility is used to configure and dump information about the USB subsystem.

The options are as follows:

-u unit
	Limit device range to USB devices connected to the given USBUS unit.
-a addr
	Limit device range to the given USB device index. Should only be used in conjunction with the unit argument.
-d [[/dev/]ugen]<unit>.<addr>
	Limit device range to USB devices connected to the given unit and address. The unit and address coordinates may be prefixed by the lowercased word "ugen", or the full path name /dev/ugen.
-h
	Show help and available commands.
-i interface_index
	Specify interface index as indicated by the command description. If this argument is not specified a value of zero will be used for the interface index.
-v
	Shortcut to activate the dump_device_desc, dump_curr_config_desc, and show_ifdrv commands ("verbose mode").

The following commands may be used with usbconfig:

set_config cfg_index
	Choose the configuration for the USB device. Valid values range from zero to the number reported as the bNumConfigurations in dump_device_desc output. The special value of 255 unconfigures the device, detaching the interface drivers and reducing the power consumption to minimum, but without going into power saving mode or detaching from the bus. In some cases, it prevents the device from charging.
set_alt alt_index
	Choose the alternate interface for the selected interface and USB device. Alternative settings for the current configuration are available as the bAlternateSetting in dump_curr_config_desc output. Usually there is no need to adjust this setting. This command uses the -i interface_index option.
set_template template
	Set the global USB device side template. See usb_template(4) for more information.
get_template
	Get the current USB device side template.
add_dev_quirk_vplh vid pid lo_rev hi_rev quirk_name
	Add a quirk by specifying the Vendor ID, Product ID, low and high revision numbers, and the quirk name. See usb_quirk(4) for more information.
remove_dev_quirk_vplh vid pid lo_rev hi_rev quirk_name
	Remove a quirk.
add_quirk quirk_name
	Add quirk for the currently selected USB device.
remove_quirk quirk_name
	Remove a quirk for the currently selected USB device.
dump_all_desc
	Display the device and configuration descriptors.
dump_quirk_names
	Display the list of supported quirk names.
dump_device_quirks
	Display the list of current device quirks.
dump_device_desc
	Display the device descriptor.
dump_curr_config_desc
	Display current configuration descriptor.
dump_all_config_desc
	Display all the configuration descriptors.
dump_string index
	Display string descriptor at selected index.
dump_info
	Display summary information about the device.
dump_stats
	Display USB transfer statistics.
show_ifdrv
	Display the list of interface drivers (such as ukbd(4) or u3g(4)) currently attached to the device.
detach_kernel_driver
	Detach kernel driver for the selected interface and USB device. This command uses the -i interface_index option.
suspend
	Force the device to suspend.
resume
	Force the device to resume.
power_off
	Turn the device off.
power_save
	Turn the automatic suspend and resume on. This is the default for USB hubs.
power_on
	Turn the device on and disable automatic suspend and resume. This is the default for non-hub devices.
reset	Reset the device. This forces the USB stack to reenumerate the bus.
list	List all available USB devices. This is the default if usbconfig is called without specifying a command.
do_request bmReqTyp bReq wVal wIdx wLen data...
	Perform a synchronous control request on the specified device. See libusb20_dev_request_sync(3) for more information.

List all connected USB devices and their attached interface drivers:

    usbconfig show_ifdrv

Dump device and configuration descriptors for device on USB bus 1 at address 2:

    usbconfig ugen1.2 dump_all_desc

Dump HID descriptor for device on USB bus 1 at address 2:

    usbconfig ugen1.2 do_request 0x81 0x06 0x2200 0 0x100

Power off the device on USB bus 1 at address 2:

    usbconfig ugen1.2 power_off