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CentOS 7.0 - man page for usb_modeswitch (centos section 1)

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       usb_modeswitch - switch mode of "multi-state" USB devices

       usb_modeswitch [-heWQDIvpVPmM23rwdHSOBGTNALnsRiuagft] [-c filename]

       Several	new USB devices have their proprietary Windows drivers onboard, most of them WWAN
       and WLAN  dongles. When plugged in for the first time, they act like a flash  storage  and
       start  installing  the  Windows	driver from there. If the driver is already installed, it
       makes the storage device disappear and a new device, mainly composite  with  modem  ports,
       shows up.

       On  Linux,  in most cases the drivers are available as kernel modules, such as "usbserial"
       or "option". However, the device initially binds to  "usb-storage"  by  default.  usb_mod-
       eswitch	can then send a provided bulk message (most likely a mass storage command) to the
       device; this message has to be determined by analyzing the actions of the Windows driver.

       In some cases, USB control commands are used for switching. These  cases  are  handled  by
       custom functions, and no bulk message needs to be provided.

       Usually,  the  program is distributed with a set of configurations for many known devices,
       which allows a fully automatic handling of a device upon insertion, made possible by  com-
       bining  usb_modeswitch with the wrapper script usb_modeswitch_dispatcher which is launched
       by the udev daemon.

       Note that usb_modeswitch itself has no specific Linux dependencies.

       This program follows the usual GNU command line syntax, with long  options  starting  with
       two dashes ('--').  A summary of options is included below.

       -h --help Show summary of options.

       -e --version
		 Print version information and exit

       -v --default-vendor NUM
		 Vendor  ID  to  look  for  (mandatory),  usually  given  as hex number (example:
		 0x12d1).  Each USB device is identified by a number officialy	assigned  to  the
		 vendor by the USB association and a number for the respective model (product ID)
		 chosen by the vendor

       -p --default-product NUM
		 Product ID to look for (mandatory)

       -V --target-vendor NUM
		 Target vendor ID. When given will be searched for  and  detected  initially  for
		 information  purposes. If success checking (option -s) is active, providing tar-
		 get IDs (vendor/product) or target class is recommended

       -j --find-mbim
		 Return configuration number with MBIM interface and exit.

       -P --target-product NUM
		 Target product ID

       -b --bus-num NUM

       -g --device-num NUM
		 If bus and device number are provided, the handling of a specific  device  on	a
		 specific  USB	port is guaranteed, in contrast to using only the USB ID. This is
		 important if there are multiple similar devices on a system

       -C --target-class NUM
		 Target Device Class according to the USB specification. Some devices keep  their
		 original  vendor/product  ID  after  successful  switching. To prevent them from
		 being treated again, the device class can be checked.	For unswitched devices it
		 is  always  8 (storage class), for switched modems it is often 0xff (vendor spe-
		 cific). In composite modes, the class of the first interface is watched

       -m --message-endpoint NUM
		 A specific endpoint to use for data transfers. Only for testing  purposes;  usu-
		 ally endpoints are determined from the device attributes

       -M --message-content STRING
		 A bulk message to send as a switching command. Provided as a hexadecimal string

       -2, -3  --message-content2, --message-content3 STRING
		 Additional  bulk messages to send as switching commands. Provided as hexadecimal
		 strings.  When used with  mass  storage  commands,  setting  --need-response  is
		 strongly advised to comply with specifications and to avoid likely errors

       -w --release-delay NUM
		 After	issuing all bulk messages, wait for NUM milliseconds before releasing the
		 interface.  Required for some modems on older systems (especially after an EJECT

       -n --need-response
		 Read  the  response (command status wrapper) to a mass storage command transfer.
		 Some devices have trouble switching if the response is not read; most are disap-
		 pearing  right away. When sending multiple mass storage commands with -2 and -3,
		 this may need to be set to avoid transfer errors

       -r --response-endpoint NUM
		 Try to read the response to a storage command from there if option -n is active.
		 Only  for  testing  purposes;	usually  endpoints are determined from the device

       -d --detach-only
		 Just detach the current driver. This is sufficient for  some  early  devices  to
		 switch  successfully. Otherwise this feature can be used as a 'scalpel' for spe-
		 cial cases, like separating the driver from individual interfaces

       -H --huawei-mode
		 Send a special control message used by older Huawei devices

       -S --sierra-mode
		 Send a special control message used by Sierra devices

       -G --gct-mode
		 Send a special control message used by GCT chipsets

       -T --kobil-mode
		 Send a special control message used by Kobil devices

       -N --sequans-mode
		 Send a special control message used by Sequans chipset

       -A --mobileaction-mode
		 Send a special control message used by the MobileAction device

       -B --qisda-mode
		 Send a special control message used by Qisda devices

       -E --quanta-mode
		 Send a special control message used by Quanta devices

       -F --pantech-mode
		 Send a special control message used by Pantech devices

       -Z --blackberry-mode
		 Send a special control message used by Blackberry devices

       -O --sony-mode
		 Apply a special sequence used by Sony Ericsson devices. Implies option  --check-

       -L --cisco-mode
		 Send a sequence of bulk messages used by Cisco devices

       -R --reset-usb
		 Send  a  USB  reset  command  to  the device. Can be combined with any switching
		 method or stand alone. It is always done as the last step of all device interac-
		 tions.  Few devices need it to complete the switching; apart from that it may be
		 useful during testing

       -c --config-file FILENAME
		 Use a specific config file. If any ID or switching options are given as  command
		 line  parameters, this option is ignored.  In that case all mandatory parameters
		 have to be provided on the command line

       -f --long-config STRING
		 Provide device details in config file syntax as a multiline string on	the  com-
		 mand line

       -t --stdinput
		 Read  the  device  details in config file syntax from standard input, e.g. redi-
		 rected from a command pipe (multiline text)

       -Q --quiet
		 Don't show progress or error messages

       -W --verbose
		 Print all settings before running and show libusb debug messages

       -D --sysmode
		 Changes the behaviour of the program slightly. A success message  including  the
		 effective  target device ID is put out and a syslog notice is issued. Mainly for
		 integration with a wrapper script

       -s --check-success NUM
		 After switching, keep checking for the result up to max. NUM seconds. If  target
		 IDs  or  target class were provided, their appearance indicates certain success.
		 Otherwise the disconnection of the original device is rated as likely proof

       -I --no-inquire
		 do not obtain SCSI attributes from device (default is on). For proper	identifi-
		 cation  of differing devices the attributes of the storage part provide valuable
		 information.  This is not needed for devices that are known and supported

       -i --interface NUM
		 Select initial USB interface (default: 0). Only for testing purposes

       -u --configuration NUM
		 Select USB configuration (applied after any other possible switching actions)

       -a --altsetting NUM
		 Select alternative USB interface setting (applied after switching).  Mainly  for

       This  manual  page  was	originally  written  by Didier Raboud (didier@raboud.com) for the
       Debian system. Additions made by Josua Dietze. Permission is granted to	copy,  distribute
       and/or  modify  this document under the terms of the GNU General Public License, Version 2
       or any later version published by the Free Software Foundation.

       The  complete  text  of	the  current  GNU  General  Public  License  can  be   found   in


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