USBCONFIG(8)

NAME
usbconfig - configure the USB subsystem

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

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

The options are as follows:

-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.

-l dump_device_desc
    Show numeral only key=value output as one long line.

-u unit
    Limit device range to USB devices connected to the given USBUS unit.

-v  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.

EXAMPLES
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 -d ugen1.2 dump_all_desc

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

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

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

    usbconfig -d ugen1.2 power_off

SEE ALSO
usb(4), usb_quirk(4), usb_template(4)