Adding upstream version 6.6.15.upstream/6.6.15

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 646 insertions, 0 deletions

diff --git a/drivers/net/usb/Kconfig b/drivers/net/usb/Kconfig
new file mode 100644
index 0000000000..3fd7dccf0f
--- /dev/null
+++ b/drivers/net/usb/Kconfig
@@ -0,0 +1,646 @@
+# SPDX-License-Identifier: GPL-2.0-only
+#
+# USB Network devices configuration
+#
+comment "Host-side USB support is needed for USB Network Adapter support"
+	depends on !USB && NET
+
+menuconfig USB_NET_DRIVERS
+	tristate "USB Network Adapters"
+	default USB if USB
+	depends on USB && NET
+
+if USB_NET_DRIVERS
+
+config USB_CATC
+	tristate "USB CATC NetMate-based Ethernet device support"
+	select CRC32
+	help
+	  Say Y if you want to use one of the following 10Mbps USB Ethernet
+	  device based on the EL1210A chip. Supported devices are:
+	  Belkin F5U011
+	  Belkin F5U111
+	  CATC NetMate
+	  CATC NetMate II
+	  smartBridges smartNIC
+
+	  This driver makes the adapter appear as a normal Ethernet interface,
+	  typically on eth0, if it is the only ethernet device, or perhaps on
+	  eth1, if you have a PCI or ISA ethernet card installed.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called catc.
+
+config USB_KAWETH
+	tristate "USB KLSI KL5USB101-based ethernet device support"
+	help
+	  Say Y here if you want to use one of the following 10Mbps only
+	  USB Ethernet adapters based on the KLSI KL5KUSB101B chipset:
+	  3Com 3C19250
+	  ADS USB-10BT
+	  ATEN USB Ethernet
+	  ASANTE USB To Ethernet Adapter
+	  AOX Endpoints USB Ethernet
+	  Correga K.K.
+	  D-Link DSB-650C and DU-E10
+	  Entrega / Portgear E45
+	  I-O DATA USB-ET/T
+	  Jaton USB Ethernet Device Adapter
+	  Kingston Technology USB Ethernet Adapter
+	  Linksys USB10T
+	  Mobility USB-Ethernet Adapter
+	  NetGear EA-101
+	  Peracom Enet and Enet2
+	  Portsmith Express Ethernet Adapter
+	  Shark Pocket Adapter
+	  SMC 2202USB
+	  Sony Vaio port extender
+
+	  This driver is likely to work with most 10Mbps only USB Ethernet
+	  adapters, including some "no brand" devices. It does NOT work on
+	  SmartBridges smartNIC or on Belkin F5U111 devices - you should use
+	  the CATC NetMate driver for those. If you are not sure which one
+	  you need, select both, and the correct one should be selected for
+	  you.
+
+	  This driver makes the adapter appear as a normal Ethernet interface,
+	  typically on eth0, if it is the only ethernet device, or perhaps on
+	  eth1, if you have a PCI or ISA ethernet card installed.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called kaweth.
+
+config USB_PEGASUS
+	tristate "USB Pegasus/Pegasus-II based ethernet device support"
+	select MII
+	help
+	  Say Y here if you know you have Pegasus or Pegasus-II based adapter.
+	  If in doubt then look at <file:drivers/net/usb/pegasus.h> for the
+	  complete list of supported devices.
+
+	  If your particular adapter is not in the list and you are _sure_ it
+	  is Pegasus or Pegasus II based then send me
+	  <petkan@users.sourceforge.net> vendor and device IDs.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called pegasus.
+
+config USB_RTL8150
+	tristate "USB RTL8150 based ethernet device support"
+	select MII
+	help
+	  Say Y here if you have RTL8150 based usb-ethernet adapter.
+	  Send me <petkan@users.sourceforge.net> any comments you may have.
+	  You can also check for updates at <http://pegasus2.sourceforge.net/>.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called rtl8150.
+
+config USB_RTL8152
+	tristate "Realtek RTL8152/RTL8153 Based USB Ethernet Adapters"
+	select MII
+	select CRC32
+	select CRYPTO
+	select CRYPTO_HASH
+	select CRYPTO_SHA256
+	help
+	  This option adds support for Realtek RTL8152 based USB 2.0
+	  10/100 Ethernet adapters and RTL8153 based USB 3.0 10/100/1000
+	  Ethernet adapters.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called r8152.
+
+config USB_LAN78XX
+	tristate "Microchip LAN78XX Based USB Ethernet Adapters"
+	select MII
+	select PHYLIB
+	select MICROCHIP_PHY
+	select FIXED_PHY
+	select CRC32
+	help
+	  This option adds support for Microchip LAN78XX based USB 2
+	  & USB 3 10/100/1000 Ethernet adapters.
+	  LAN7800 : USB 3 to 10/100/1000 Ethernet adapter
+	  LAN7850 : USB 2 to 10/100/1000 Ethernet adapter
+	  LAN7801 : USB 3 to 10/100/1000 Ethernet adapter (MAC only)
+
+	  Proper PHY driver is required for LAN7801.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called lan78xx.
+
+config USB_USBNET
+	tristate "Multi-purpose USB Networking Framework"
+	select MII
+	help
+	  This driver supports several kinds of network links over USB,
+	  with "minidrivers" built around a common network driver core
+	  that supports deep queues for efficient transfers.  (This gives
+	  better performance with small packets and at high speeds).
+
+	  The USB host runs "usbnet", and the other end of the link might be:
+
+	  - Another USB host, when using USB "network" or "data transfer"
+	    cables.  These are often used to network laptops to PCs, like
+	    "Laplink" parallel cables or some motherboards.  These rely
+	    on specialized chips from many suppliers.
+
+	  - An intelligent USB gadget, perhaps embedding a Linux system.
+	    These include PDAs running Linux (iPaq, Yopy, Zaurus, and
+	    others), and devices that interoperate using the standard
+	    CDC-Ethernet specification (including many cable modems).
+
+	  - Network adapter hardware (like those for 10/100 Ethernet) which
+	    uses this driver framework.
+
+	  The link will appear with a name like "usb0", when the link is
+	  a two-node link, or "eth0" for most CDC-Ethernet devices.  Those
+	  two-node links are most easily managed with Ethernet Bridging
+	  (CONFIG_BRIDGE) instead of routing.
+
+	  For more information see <http://www.linux-usb.org/usbnet/>.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called usbnet.
+
+config USB_NET_AX8817X
+	tristate "ASIX AX88xxx Based USB 2.0 Ethernet Adapters"
+	depends on USB_USBNET
+	select CRC32
+	select PHYLINK
+	select AX88796B_PHY
+	imply NET_SELFTESTS
+	default y
+	help
+	  This option adds support for ASIX AX88xxx based USB 2.0
+	  10/100 Ethernet adapters.
+
+	  This driver should work with at least the following devices:
+	    * Aten UC210T
+	    * ASIX AX88172
+	    * Billionton Systems, USB2AR
+	    * Billionton Systems, GUSB2AM-1G-B
+	    * Buffalo LUA-U2-KTX
+	    * Corega FEther USB2-TX
+	    * D-Link DUB-E100
+	    * Hawking UF200
+	    * Linksys USB200M
+	    * Netgear FA120
+	    * Sitecom LN-029
+	    * Sitecom LN-028
+	    * Intellinet USB 2.0 Ethernet
+	    * ST Lab USB 2.0 Ethernet
+	    * TrendNet TU2-ET100
+
+	  This driver creates an interface named "ethX", where X depends on
+	  what other networking devices you have in use.
+
+config USB_NET_AX88179_178A
+	tristate "ASIX AX88179/178A USB 3.0/2.0 to Gigabit Ethernet"
+	depends on USB_USBNET
+	select CRC32
+	select PHYLIB
+	default y
+	help
+	  This option adds support for ASIX AX88179 based USB 3.0/2.0
+	  to Gigabit Ethernet adapters.
+
+	  This driver should work with at least the following devices:
+	    * ASIX AX88179
+	    * ASIX AX88178A
+	    * Sitcomm LN-032
+
+	  This driver creates an interface named "ethX", where X depends on
+	  what other networking devices you have in use.
+
+config USB_NET_CDCETHER
+	tristate "CDC Ethernet support (smart devices such as cable modems)"
+	depends on USB_USBNET
+	default y
+	help
+	  This option supports devices conforming to the Communication Device
+	  Class (CDC) Ethernet Control Model, a specification that's easy to
+	  implement in device firmware.  The CDC specifications are available
+	  from <http://www.usb.org/>.
+
+	  CDC Ethernet is an implementation option for DOCSIS cable modems
+	  that support USB connectivity, used for non-Microsoft USB hosts.
+	  The Linux-USB CDC Ethernet Gadget driver is an open implementation.
+	  This driver should work with at least the following devices:
+
+	    * Dell Wireless 5530 HSPA
+	    * Ericsson PipeRider (all variants)
+	    * Ericsson Mobile Broadband Module (all variants)
+	    * Motorola (DM100 and SB4100)
+	    * Broadcom Cable Modem (reference design)
+	    * Toshiba (PCX1100U and F3507g/F3607gw)
+	    * ...
+
+	  This driver creates an interface named "ethX", where X depends on
+	  what other networking devices you have in use.  However, if the
+	  IEEE 802 "local assignment" bit is set in the address, a "usbX"
+	  name is used instead.
+
+config USB_NET_CDC_EEM
+	tristate "CDC EEM support"
+	depends on USB_USBNET
+	help
+	  This option supports devices conforming to the Communication Device
+	  Class (CDC) Ethernet Emulation Model, a specification that's easy to
+	  implement in device firmware.  The CDC EEM specifications are available
+	  from <http://www.usb.org/>.
+
+	  This driver creates an interface named "ethX", where X depends on
+	  what other networking devices you have in use.  However, if the
+	  IEEE 802 "local assignment" bit is set in the address, a "usbX"
+	  name is used instead.
+
+config USB_NET_CDC_NCM
+	tristate "CDC NCM support"
+	depends on USB_USBNET
+	select USB_NET_CDCETHER
+	default y
+	help
+	  This driver provides support for CDC NCM (Network Control Model
+	  Device USB Class Specification). The CDC NCM specification is
+	  available from <http://www.usb.org/>.
+
+	  Say "y" to link the driver statically, or "m" to build a
+	  dynamically linked module.
+
+	  This driver should work with at least the following devices:
+	    * ST-Ericsson M700 LTE FDD/TDD Mobile Broadband Modem (ref. design)
+	    * ST-Ericsson M5730 HSPA+ Mobile Broadband Modem (reference design)
+	    * ST-Ericsson M570 HSPA+ Mobile Broadband Modem (reference design)
+	    * ST-Ericsson M343 HSPA Mobile Broadband Modem (reference design)
+	    * Ericsson F5521gw Mobile Broadband Module
+
+config USB_NET_HUAWEI_CDC_NCM
+	tristate "Huawei NCM embedded AT channel support"
+	depends on USB_USBNET
+	select USB_WDM
+	select USB_NET_CDC_NCM
+	help
+		This driver supports huawei-style NCM devices, that use NCM as a
+		transport for other protocols, usually an embedded AT channel.
+		Good examples are:
+		* Huawei E3131
+		* Huawei E3251
+
+		To compile this driver as a module, choose M here: the module will be
+		called huawei_cdc_ncm.ko.
+
+config USB_NET_CDC_MBIM
+	tristate "CDC MBIM support"
+	depends on USB_USBNET
+	select USB_WDM
+	select USB_NET_CDC_NCM
+	help
+	  This driver provides support for CDC MBIM (Mobile Broadband
+	  Interface Model) devices. The CDC MBIM specification is
+	  available from <http://www.usb.org/>.
+
+	  MBIM devices require configuration using the management
+	  protocol defined by the MBIM specification.  This driver
+	  provides unfiltered access to the MBIM control channel
+	  through the associated /dev/cdc-wdmx character device.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called cdc_mbim.
+
+config USB_NET_DM9601
+	tristate "Davicom DM96xx based USB 10/100 ethernet devices"
+	depends on USB_USBNET
+	select CRC32
+	help
+	  This option adds support for Davicom DM9601/DM9620/DM9621A
+	  based USB 10/100 Ethernet adapters.
+
+config USB_NET_SR9700
+	tristate "CoreChip-sz SR9700 based USB 1.1 10/100 ethernet devices"
+	depends on USB_USBNET
+	select CRC32
+	help
+	  This option adds support for CoreChip-sz SR9700 based USB 1.1
+	  10/100 Ethernet adapters.
+
+config USB_NET_SR9800
+	tristate "CoreChip-sz SR9800 based USB 2.0 10/100 ethernet devices"
+	depends on USB_USBNET
+	select CRC32
+	help
+	  Say Y if you want to use one of the following 100Mbps USB Ethernet
+	  device based on the CoreChip-sz SR9800 chip.
+
+	  This driver makes the adapter appear as a normal Ethernet interface,
+	  typically on eth0, if it is the only ethernet device, or perhaps on
+	  eth1, if you have a PCI or ISA ethernet card installed.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called sr9800.
+
+config USB_NET_SMSC75XX
+	tristate "SMSC LAN75XX based USB 2.0 gigabit ethernet devices"
+	depends on USB_USBNET
+	select BITREVERSE
+	select CRC16
+	select CRC32
+	help
+	  This option adds support for SMSC LAN75XX based USB 2.0
+	  Gigabit Ethernet adapters.
+
+config USB_NET_SMSC95XX
+	tristate "SMSC LAN95XX based USB 2.0 10/100 ethernet devices"
+	depends on USB_USBNET
+	select PHYLIB
+	select SMSC_PHY
+	select BITREVERSE
+	select CRC16
+	select CRC32
+	imply NET_SELFTESTS
+	help
+	  This option adds support for SMSC LAN95XX based USB 2.0
+	  10/100 Ethernet adapters.
+
+config USB_NET_GL620A
+	tristate "GeneSys GL620USB-A based cables"
+	depends on USB_USBNET
+	help
+	  Choose this option if you're using a host-to-host cable,
+	  or PC2PC motherboard, with this chip.
+
+	  Note that the half-duplex "GL620USB" is not supported.
+
+config USB_NET_NET1080
+	tristate "NetChip 1080 based cables (Laplink, ...)"
+	default y
+	depends on USB_USBNET
+	help
+	  Choose this option if you're using a host-to-host cable based
+	  on this design:  one NetChip 1080 chip and supporting logic,
+	  optionally with LEDs that indicate traffic
+
+config USB_NET_PLUSB
+	tristate "Prolific PL-2301/2302/25A1/27A1 based cables"
+	# if the handshake/init/reset problems, from original 'plusb',
+	# are ever resolved ... then remove "experimental"
+	depends on USB_USBNET
+	help
+	  Choose this option if you're using a host-to-host cable
+	  with one of these chips.
+
+config USB_NET_MCS7830
+	tristate "MosChip MCS7830 based Ethernet adapters"
+	depends on USB_USBNET
+	help
+	  Choose this option if you're using a 10/100 Ethernet USB2
+	  adapter based on the MosChip 7830 controller. This includes
+	  adapters marketed under the DeLOCK brand.
+
+config USB_NET_RNDIS_HOST
+	tristate "Host for RNDIS and ActiveSync devices"
+	depends on USB_USBNET
+	select USB_NET_CDCETHER
+	help
+	  This option enables hosting "Remote NDIS" USB networking links,
+	  as encouraged by Microsoft (instead of CDC Ethernet!) for use in
+	  various devices that may only support this protocol.  A variant
+	  of this protocol (with even less public documentation) seems to
+	  be at the root of Microsoft's "ActiveSync" too.
+
+	  Avoid using this protocol unless you have no better options.
+	  The protocol specification is incomplete, and is controlled by
+	  (and for) Microsoft; it isn't an "Open" ecosystem or market.
+
+config USB_NET_CDC_SUBSET_ENABLE
+	tristate
+	depends on USB_NET_CDC_SUBSET
+
+config USB_NET_CDC_SUBSET
+	tristate "Simple USB Network Links (CDC Ethernet subset)"
+	depends on USB_USBNET
+	default y
+	help
+	  This driver module supports USB network devices that can work
+	  without any device-specific information.  Select it if you have
+	  one of these drivers.
+
+	  Note that while many USB host-to-host cables can work in this mode,
+	  that may mean not being able to talk to Win32 systems or more
+	  commonly not being able to handle certain events (like replugging
+	  the host on the other end) very well.  Also, these devices will
+	  not generally have permanently assigned Ethernet addresses.
+
+config USB_ALI_M5632
+	bool "ALi M5632 based 'USB 2.0 Data Link' cables"
+	depends on USB_NET_CDC_SUBSET
+	select USB_NET_CDC_SUBSET_ENABLE
+	help
+	  Choose this option if you're using a host-to-host cable
+	  based on this design, which supports USB 2.0 high speed.
+
+config USB_AN2720
+	bool "AnchorChips 2720 based cables (Xircom PGUNET, ...)"
+	depends on USB_NET_CDC_SUBSET
+	select USB_NET_CDC_SUBSET_ENABLE
+	help
+	  Choose this option if you're using a host-to-host cable
+	  based on this design.  Note that AnchorChips is now a
+	  Cypress brand.
+
+config USB_BELKIN
+	bool "eTEK based host-to-host cables (Advance, Belkin, ...)"
+	depends on USB_NET_CDC_SUBSET
+	select USB_NET_CDC_SUBSET_ENABLE
+	default y
+	help
+	  Choose this option if you're using a host-to-host cable
+	  based on this design:  two NetChip 2890 chips and an Atmel
+	  microcontroller, with LEDs that indicate traffic.
+
+config USB_ARMLINUX
+	bool "Embedded ARM Linux links (iPaq, ...)"
+	depends on USB_NET_CDC_SUBSET
+	select USB_NET_CDC_SUBSET_ENABLE
+	default y
+	help
+	  Choose this option to support the "usb-eth" networking driver
+	  used by most of the ARM Linux community with device controllers
+	  such as the SA-11x0 and PXA-25x UDCs, or the tftp capabilities
+	  in some PXA versions of the "blob" boot loader.
+
+	  Linux-based "Gumstix" PXA-25x based systems use this protocol
+	  to talk with other Linux systems.
+
+	  Although the ROMs shipped with Sharp Zaurus products use a
+	  different link level framing protocol, you can have them use
+	  this simpler protocol by installing a different kernel.
+
+config USB_EPSON2888
+	bool "Epson 2888 based firmware (DEVELOPMENT)"
+	depends on USB_NET_CDC_SUBSET
+	select USB_NET_CDC_SUBSET_ENABLE
+	help
+	  Choose this option to support the usb networking links used
+	  by some sample firmware from Epson.
+
+config USB_KC2190
+	bool "KT Technology KC2190 based cables (InstaNet)"
+	depends on USB_NET_CDC_SUBSET
+	select USB_NET_CDC_SUBSET_ENABLE
+	help
+	  Choose this option if you're using a host-to-host cable
+	  with one of these chips.
+
+config USB_NET_ZAURUS
+	tristate "Sharp Zaurus (stock ROMs) and compatible"
+	depends on USB_USBNET
+	select USB_NET_CDCETHER
+	select CRC32
+	default y
+	help
+	  Choose this option to support the usb networking links used by
+	  Zaurus models like the SL-5000D, SL-5500, SL-5600, A-300, B-500.
+	  This also supports some related device firmware, as used in some
+	  PDAs from Olympus and some cell phones from Motorola.
+
+	  If you install an alternate image, such as the Linux 2.6 based
+	  versions of OpenZaurus, you should no longer need to support this
+	  protocol.  Only the "eth-fd" or "net_fd" drivers in these devices
+	  really need this non-conformant variant of CDC Ethernet (or in
+	  some cases CDC MDLM) protocol, not "g_ether".
+
+config USB_NET_CX82310_ETH
+	tristate "Conexant CX82310 USB ethernet port"
+	depends on USB_USBNET
+	help
+	  Choose this option if you're using a Conexant CX82310-based ADSL
+	  router with USB ethernet port. This driver is for routers only,
+	  it will not work with ADSL modems (use cxacru driver instead).
+
+config USB_NET_KALMIA
+	tristate "Samsung Kalmia based LTE USB modem"
+	depends on USB_USBNET
+	help
+	  Choose this option if you have a Samsung Kalmia based USB modem
+	  as Samsung GT-B3730.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called kalmia.
+
+config USB_NET_QMI_WWAN
+	tristate "QMI WWAN driver for Qualcomm MSM based 3G and LTE modems"
+	depends on USB_USBNET
+	select USB_WDM
+	help
+	  Support WWAN LTE/3G devices based on Qualcomm Mobile Data Modem
+	  (MDM) chipsets.  Examples of such devices are
+	    * Huawei E392/E398
+
+	  This driver will only drive the ethernet part of the chips.
+	  The devices require additional configuration to be usable.
+	  Multiple management interfaces with linux drivers are
+	  available:
+
+	    * option: AT commands on /dev/ttyUSBx
+	    * cdc-wdm: Qualcomm MSM Interface (QMI) protocol on /dev/cdc-wdmx
+
+	  A modem manager with support for QMI is recommended.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called qmi_wwan.
+
+config USB_HSO
+	tristate "Option USB High Speed Mobile Devices"
+	depends on USB && RFKILL && TTY
+	default n
+	help
+	  Choose this option if you have an Option HSDPA/HSUPA card.
+	  These cards support downlink speeds of 7.2Mbps or greater.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called hso.
+
+config USB_NET_INT51X1
+	tristate "Intellon PLC based usb adapter"
+	depends on USB_USBNET
+	help
+	  Choose this option if you're using a 14Mb USB-based PLC
+	  (Powerline Communications) solution with an Intellon
+	  INT51x1/INT5200 chip, like the "devolo dLan duo".
+
+config USB_CDC_PHONET
+	tristate "CDC Phonet support"
+	depends on PHONET && USB_USBNET
+	help
+	  Choose this option to support the Phonet interface to a Nokia
+	  cellular modem, as found on most Nokia handsets with the
+	  "PC suite" USB profile.
+
+config USB_IPHETH
+	tristate "Apple iPhone USB Ethernet driver"
+	default n
+	help
+	  Module used to share Internet connection (tethering) from your
+	  iPhone to your system.
+	  Note that you need a corresponding userspace library/program
+	  to pair your device with your system, for example usbmuxd
+	  <https://github.com/libimobiledevice/usbmuxd>.
+
+config USB_SIERRA_NET
+	tristate "USB-to-WWAN Driver for Sierra Wireless modems"
+	depends on USB_USBNET
+	help
+	  Choose this option if you have a Sierra Wireless USB-to-WWAN device.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called sierra_net.
+
+config USB_VL600
+	tristate "LG VL600 modem dongle"
+	depends on USB_NET_CDCETHER && TTY
+	select USB_ACM
+	help
+	  Select this if you want to use an LG Electronics 4G/LTE usb modem
+	  called VL600.  This driver only handles the ethernet
+	  interface exposed by the modem firmware.  To establish a connection
+	  you will first need a userspace program that sends the right
+	  command to the modem through its CDC ACM port, and most
+	  likely also a DHCP client.  See this thread about using the
+	  4G modem from Verizon:
+
+	  http://ubuntuforums.org/showpost.php?p=10589647&postcount=17
+
+config USB_NET_CH9200
+	tristate "QingHeng CH9200 USB ethernet support"
+	depends on USB_USBNET
+	select MII
+	help
+	  Choose this option if you have a USB ethernet adapter with a QinHeng
+	  CH9200 chipset.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called ch9200.
+
+config USB_NET_AQC111
+	tristate "Aquantia AQtion USB to 5/2.5GbE Controllers support"
+	depends on USB_USBNET
+	select CRC32
+	help
+	  This option adds support for Aquantia AQtion USB
+	  Ethernet adapters based on AQC111U/AQC112 chips.
+
+	  This driver should work with at least the following devices:
+	  * Aquantia AQtion USB to 5GbE
+
+config USB_RTL8153_ECM
+	tristate
+	depends on USB_NET_CDCETHER && (USB_RTL8152 || USB_RTL8152=n)
+	default y
+	help
+	  This option supports ECM mode for RTL8153 ethernet adapter, when
+	  CONFIG_USB_RTL8152 is not set, or the RTL8153 device is not
+	  supported by r8152 driver.
+
+endif # USB_NET_DRIVERS