1# SPDX-License-Identifier: GPL-2.0-only
2#
3# USB Network devices configuration
4#
5comment "Host-side USB support is needed for USB Network Adapter support"
6	depends on !USB && NET
7
8menuconfig USB_NET_DRIVERS
9	tristate "USB Network Adapters"
10	default USB if USB
11	depends on USB && NET
12
13if USB_NET_DRIVERS
14
15config USB_CATC
16	tristate "USB CATC NetMate-based Ethernet device support"
17	select CRC32
18	help
19	  Say Y if you want to use one of the following 10Mbps USB Ethernet
20	  device based on the EL1210A chip. Supported devices are:
21	  Belkin F5U011
22	  Belkin F5U111
23	  CATC NetMate
24	  CATC NetMate II
25	  smartBridges smartNIC
26
27	  This driver makes the adapter appear as a normal Ethernet interface,
28	  typically on eth0, if it is the only ethernet device, or perhaps on
29	  eth1, if you have a PCI or ISA ethernet card installed.
30
31	  To compile this driver as a module, choose M here: the
32	  module will be called catc.
33
34config USB_KAWETH
35	tristate "USB KLSI KL5USB101-based ethernet device support"
36	help
37	  Say Y here if you want to use one of the following 10Mbps only
38	  USB Ethernet adapters based on the KLSI KL5KUSB101B chipset:
39	  3Com 3C19250
40	  ADS USB-10BT
41	  ATEN USB Ethernet
42	  ASANTE USB To Ethernet Adapter
43	  AOX Endpoints USB Ethernet
44	  Correga K.K.
45	  D-Link DSB-650C and DU-E10
46	  Entrega / Portgear E45
47	  I-O DATA USB-ET/T
48	  Jaton USB Ethernet Device Adapter
49	  Kingston Technology USB Ethernet Adapter
50	  Linksys USB10T
51	  Mobility USB-Ethernet Adapter
52	  NetGear EA-101
53	  Peracom Enet and Enet2
54	  Portsmith Express Ethernet Adapter
55	  Shark Pocket Adapter
56	  SMC 2202USB
57	  Sony Vaio port extender
58
59	  This driver is likely to work with most 10Mbps only USB Ethernet
60	  adapters, including some "no brand" devices. It does NOT work on
61	  SmartBridges smartNIC or on Belkin F5U111 devices - you should use
62	  the CATC NetMate driver for those. If you are not sure which one
63	  you need, select both, and the correct one should be selected for
64	  you.
65
66	  This driver makes the adapter appear as a normal Ethernet interface,
67	  typically on eth0, if it is the only ethernet device, or perhaps on
68	  eth1, if you have a PCI or ISA ethernet card installed.
69
70	  To compile this driver as a module, choose M here: the
71	  module will be called kaweth.
72
73config USB_PEGASUS
74	tristate "USB Pegasus/Pegasus-II based ethernet device support"
75	select MII
76	help
77	  Say Y here if you know you have Pegasus or Pegasus-II based adapter.
78	  If in doubt then look at <file:drivers/net/usb/pegasus.h> for the
79	  complete list of supported devices.
80
81	  If your particular adapter is not in the list and you are _sure_ it
82	  is Pegasus or Pegasus II based then send me
83	  <petkan@users.sourceforge.net> vendor and device IDs.
84
85	  To compile this driver as a module, choose M here: the
86	  module will be called pegasus.
87
88config USB_RTL8150
89	tristate "USB RTL8150 based ethernet device support"
90	select MII
91	help
92	  Say Y here if you have RTL8150 based usb-ethernet adapter.
93	  Send me <petkan@users.sourceforge.net> any comments you may have.
94	  You can also check for updates at <http://pegasus2.sourceforge.net/>.
95
96	  To compile this driver as a module, choose M here: the
97	  module will be called rtl8150.
98
99config USB_RTL8152
100	tristate "Realtek RTL8152/RTL8153 Based USB Ethernet Adapters"
101	select MII
102	select CRC32
103	select CRYPTO
104	select CRYPTO_HASH
105	select CRYPTO_SHA256
106	help
107	  This option adds support for Realtek RTL8152 based USB 2.0
108	  10/100 Ethernet adapters and RTL8153 based USB 3.0 10/100/1000
109	  Ethernet adapters.
110
111	  To compile this driver as a module, choose M here: the
112	  module will be called r8152.
113
114config USB_LAN78XX
115	tristate "Microchip LAN78XX Based USB Ethernet Adapters"
116	select MII
117	select PHYLIB
118	select MICROCHIP_PHY
119	select FIXED_PHY
120	select CRC32
121	help
122	  This option adds support for Microchip LAN78XX based USB 2
123	  & USB 3 10/100/1000 Ethernet adapters.
124	  LAN7800 : USB 3 to 10/100/1000 Ethernet adapter
125	  LAN7850 : USB 2 to 10/100/1000 Ethernet adapter
126	  LAN7801 : USB 3 to 10/100/1000 Ethernet adapter (MAC only)
127
128	  Proper PHY driver is required for LAN7801.
129
130	  To compile this driver as a module, choose M here: the
131	  module will be called lan78xx.
132
133config USB_USBNET
134	tristate "Multi-purpose USB Networking Framework"
135	select MII
136	help
137	  This driver supports several kinds of network links over USB,
138	  with "minidrivers" built around a common network driver core
139	  that supports deep queues for efficient transfers.  (This gives
140	  better performance with small packets and at high speeds).
141
142	  The USB host runs "usbnet", and the other end of the link might be:
143
144	  - Another USB host, when using USB "network" or "data transfer"
145	    cables.  These are often used to network laptops to PCs, like
146	    "Laplink" parallel cables or some motherboards.  These rely
147	    on specialized chips from many suppliers.
148
149	  - An intelligent USB gadget, perhaps embedding a Linux system.
150	    These include PDAs running Linux (iPaq, Yopy, Zaurus, and
151	    others), and devices that interoperate using the standard
152	    CDC-Ethernet specification (including many cable modems).
153
154	  - Network adapter hardware (like those for 10/100 Ethernet) which
155	    uses this driver framework.
156
157	  The link will appear with a name like "usb0", when the link is
158	  a two-node link, or "eth0" for most CDC-Ethernet devices.  Those
159	  two-node links are most easily managed with Ethernet Bridging
160	  (CONFIG_BRIDGE) instead of routing.
161
162	  For more information see <http://www.linux-usb.org/usbnet/>.
163
164	  To compile this driver as a module, choose M here: the
165	  module will be called usbnet.
166
167config USB_NET_AX8817X
168	tristate "ASIX AX88xxx Based USB 2.0 Ethernet Adapters"
169	depends on USB_USBNET
170	select CRC32
171	select PHYLIB
172	select AX88796B_PHY
173	imply NET_SELFTESTS
174	default y
175	help
176	  This option adds support for ASIX AX88xxx based USB 2.0
177	  10/100 Ethernet adapters.
178
179	  This driver should work with at least the following devices:
180	    * Aten UC210T
181	    * ASIX AX88172
182	    * Billionton Systems, USB2AR
183	    * Billionton Systems, GUSB2AM-1G-B
184	    * Buffalo LUA-U2-KTX
185	    * Corega FEther USB2-TX
186	    * D-Link DUB-E100
187	    * Hawking UF200
188	    * Linksys USB200M
189	    * Netgear FA120
190	    * Sitecom LN-029
191	    * Sitecom LN-028
192	    * Intellinet USB 2.0 Ethernet
193	    * ST Lab USB 2.0 Ethernet
194	    * TrendNet TU2-ET100
195
196	  This driver creates an interface named "ethX", where X depends on
197	  what other networking devices you have in use.
198
199config USB_NET_AX88179_178A
200	tristate "ASIX AX88179/178A USB 3.0/2.0 to Gigabit Ethernet"
201	depends on USB_USBNET
202	select CRC32
203	select PHYLIB
204	default y
205	help
206	  This option adds support for ASIX AX88179 based USB 3.0/2.0
207	  to Gigabit Ethernet adapters.
208
209	  This driver should work with at least the following devices:
210	    * ASIX AX88179
211	    * ASIX AX88178A
212	    * Sitcomm LN-032
213
214	  This driver creates an interface named "ethX", where X depends on
215	  what other networking devices you have in use.
216
217config USB_NET_CDCETHER
218	tristate "CDC Ethernet support (smart devices such as cable modems)"
219	depends on USB_USBNET
220	default y
221	help
222	  This option supports devices conforming to the Communication Device
223	  Class (CDC) Ethernet Control Model, a specification that's easy to
224	  implement in device firmware.  The CDC specifications are available
225	  from <http://www.usb.org/>.
226
227	  CDC Ethernet is an implementation option for DOCSIS cable modems
228	  that support USB connectivity, used for non-Microsoft USB hosts.
229	  The Linux-USB CDC Ethernet Gadget driver is an open implementation.
230	  This driver should work with at least the following devices:
231
232	    * Dell Wireless 5530 HSPA
233	    * Ericsson PipeRider (all variants)
234	    * Ericsson Mobile Broadband Module (all variants)
235	    * Motorola (DM100 and SB4100)
236	    * Broadcom Cable Modem (reference design)
237	    * Toshiba (PCX1100U and F3507g/F3607gw)
238	    * ...
239
240	  This driver creates an interface named "ethX", where X depends on
241	  what other networking devices you have in use.  However, if the
242	  IEEE 802 "local assignment" bit is set in the address, a "usbX"
243	  name is used instead.
244
245config USB_NET_CDC_EEM
246	tristate "CDC EEM support"
247	depends on USB_USBNET
248	help
249	  This option supports devices conforming to the Communication Device
250	  Class (CDC) Ethernet Emulation Model, a specification that's easy to
251	  implement in device firmware.  The CDC EEM specifications are available
252	  from <http://www.usb.org/>.
253
254	  This driver creates an interface named "ethX", where X depends on
255	  what other networking devices you have in use.  However, if the
256	  IEEE 802 "local assignment" bit is set in the address, a "usbX"
257	  name is used instead.
258
259config USB_NET_CDC_NCM
260	tristate "CDC NCM support"
261	depends on USB_USBNET
262	select USB_NET_CDCETHER
263	default y
264	help
265	  This driver provides support for CDC NCM (Network Control Model
266	  Device USB Class Specification). The CDC NCM specification is
267	  available from <http://www.usb.org/>.
268
269	  Say "y" to link the driver statically, or "m" to build a
270	  dynamically linked module.
271
272	  This driver should work with at least the following devices:
273	    * ST-Ericsson M700 LTE FDD/TDD Mobile Broadband Modem (ref. design)
274	    * ST-Ericsson M5730 HSPA+ Mobile Broadband Modem (reference design)
275	    * ST-Ericsson M570 HSPA+ Mobile Broadband Modem (reference design)
276	    * ST-Ericsson M343 HSPA Mobile Broadband Modem (reference design)
277	    * Ericsson F5521gw Mobile Broadband Module
278
279config USB_NET_HUAWEI_CDC_NCM
280	tristate "Huawei NCM embedded AT channel support"
281	depends on USB_USBNET
282	select USB_WDM
283	select USB_NET_CDC_NCM
284	help
285		This driver supports huawei-style NCM devices, that use NCM as a
286		transport for other protocols, usually an embedded AT channel.
287		Good examples are:
288		* Huawei E3131
289		* Huawei E3251
290
291		To compile this driver as a module, choose M here: the module will be
292		called huawei_cdc_ncm.ko.
293
294config USB_NET_CDC_MBIM
295	tristate "CDC MBIM support"
296	depends on USB_USBNET
297	select USB_WDM
298	select USB_NET_CDC_NCM
299	help
300	  This driver provides support for CDC MBIM (Mobile Broadband
301	  Interface Model) devices. The CDC MBIM specification is
302	  available from <http://www.usb.org/>.
303
304	  MBIM devices require configuration using the management
305	  protocol defined by the MBIM specification.  This driver
306	  provides unfiltered access to the MBIM control channel
307	  through the associated /dev/cdc-wdmx character device.
308
309	  To compile this driver as a module, choose M here: the
310	  module will be called cdc_mbim.
311
312config USB_NET_DM9601
313	tristate "Davicom DM96xx based USB 10/100 ethernet devices"
314	depends on USB_USBNET
315	select CRC32
316	help
317	  This option adds support for Davicom DM9601/DM9620/DM9621A
318	  based USB 10/100 Ethernet adapters.
319
320config USB_NET_SR9700
321	tristate "CoreChip-sz SR9700 based USB 1.1 10/100 ethernet devices"
322	depends on USB_USBNET
323	select CRC32
324	help
325	  This option adds support for CoreChip-sz SR9700 based USB 1.1
326	  10/100 Ethernet adapters.
327
328config USB_NET_SR9800
329	tristate "CoreChip-sz SR9800 based USB 2.0 10/100 ethernet devices"
330	depends on USB_USBNET
331	select CRC32
332	help
333	  Say Y if you want to use one of the following 100Mbps USB Ethernet
334	  device based on the CoreChip-sz SR9800 chip.
335
336	  This driver makes the adapter appear as a normal Ethernet interface,
337	  typically on eth0, if it is the only ethernet device, or perhaps on
338	  eth1, if you have a PCI or ISA ethernet card installed.
339
340	  To compile this driver as a module, choose M here: the
341	  module will be called sr9800.
342
343config USB_NET_SMSC75XX
344	tristate "SMSC LAN75XX based USB 2.0 gigabit ethernet devices"
345	depends on USB_USBNET
346	select BITREVERSE
347	select CRC16
348	select CRC32
349	help
350	  This option adds support for SMSC LAN75XX based USB 2.0
351	  Gigabit Ethernet adapters.
352
353config USB_NET_SMSC95XX
354	tristate "SMSC LAN95XX based USB 2.0 10/100 ethernet devices"
355	depends on USB_USBNET
356	select PHYLIB
357	select SMSC_PHY
358	select BITREVERSE
359	select CRC16
360	select CRC32
361	help
362	  This option adds support for SMSC LAN95XX based USB 2.0
363	  10/100 Ethernet adapters.
364
365config USB_NET_GL620A
366	tristate "GeneSys GL620USB-A based cables"
367	depends on USB_USBNET
368	help
369	  Choose this option if you're using a host-to-host cable,
370	  or PC2PC motherboard, with this chip.
371
372	  Note that the half-duplex "GL620USB" is not supported.
373
374config USB_NET_NET1080
375	tristate "NetChip 1080 based cables (Laplink, ...)"
376	default y
377	depends on USB_USBNET
378	help
379	  Choose this option if you're using a host-to-host cable based
380	  on this design:  one NetChip 1080 chip and supporting logic,
381	  optionally with LEDs that indicate traffic
382
383config USB_NET_PLUSB
384	tristate "Prolific PL-2301/2302/25A1/27A1 based cables"
385	# if the handshake/init/reset problems, from original 'plusb',
386	# are ever resolved ... then remove "experimental"
387	depends on USB_USBNET
388	help
389	  Choose this option if you're using a host-to-host cable
390	  with one of these chips.
391
392config USB_NET_MCS7830
393	tristate "MosChip MCS7830 based Ethernet adapters"
394	depends on USB_USBNET
395	help
396	  Choose this option if you're using a 10/100 Ethernet USB2
397	  adapter based on the MosChip 7830 controller. This includes
398	  adapters marketed under the DeLOCK brand.
399
400config USB_NET_RNDIS_HOST
401	tristate "Host for RNDIS and ActiveSync devices"
402	depends on USB_USBNET
403	select USB_NET_CDCETHER
404	help
405	  This option enables hosting "Remote NDIS" USB networking links,
406	  as encouraged by Microsoft (instead of CDC Ethernet!) for use in
407	  various devices that may only support this protocol.  A variant
408	  of this protocol (with even less public documentation) seems to
409	  be at the root of Microsoft's "ActiveSync" too.
410
411	  Avoid using this protocol unless you have no better options.
412	  The protocol specification is incomplete, and is controlled by
413	  (and for) Microsoft; it isn't an "Open" ecosystem or market.
414
415config USB_NET_CDC_SUBSET_ENABLE
416	tristate
417	depends on USB_NET_CDC_SUBSET
418
419config USB_NET_CDC_SUBSET
420	tristate "Simple USB Network Links (CDC Ethernet subset)"
421	depends on USB_USBNET
422	default y
423	help
424	  This driver module supports USB network devices that can work
425	  without any device-specific information.  Select it if you have
426	  one of these drivers.
427
428	  Note that while many USB host-to-host cables can work in this mode,
429	  that may mean not being able to talk to Win32 systems or more
430	  commonly not being able to handle certain events (like replugging
431	  the host on the other end) very well.  Also, these devices will
432	  not generally have permanently assigned Ethernet addresses.
433
434config USB_ALI_M5632
435	bool "ALi M5632 based 'USB 2.0 Data Link' cables"
436	depends on USB_NET_CDC_SUBSET
437	select USB_NET_CDC_SUBSET_ENABLE
438	help
439	  Choose this option if you're using a host-to-host cable
440	  based on this design, which supports USB 2.0 high speed.
441
442config USB_AN2720
443	bool "AnchorChips 2720 based cables (Xircom PGUNET, ...)"
444	depends on USB_NET_CDC_SUBSET
445	select USB_NET_CDC_SUBSET_ENABLE
446	help
447	  Choose this option if you're using a host-to-host cable
448	  based on this design.  Note that AnchorChips is now a
449	  Cypress brand.
450
451config USB_BELKIN
452	bool "eTEK based host-to-host cables (Advance, Belkin, ...)"
453	depends on USB_NET_CDC_SUBSET
454	select USB_NET_CDC_SUBSET_ENABLE
455	default y
456	help
457	  Choose this option if you're using a host-to-host cable
458	  based on this design:  two NetChip 2890 chips and an Atmel
459	  microcontroller, with LEDs that indicate traffic.
460
461config USB_ARMLINUX
462	bool "Embedded ARM Linux links (iPaq, ...)"
463	depends on USB_NET_CDC_SUBSET
464	select USB_NET_CDC_SUBSET_ENABLE
465	default y
466	help
467	  Choose this option to support the "usb-eth" networking driver
468	  used by most of the ARM Linux community with device controllers
469	  such as the SA-11x0 and PXA-25x UDCs, or the tftp capabilities
470	  in some PXA versions of the "blob" boot loader.
471
472	  Linux-based "Gumstix" PXA-25x based systems use this protocol
473	  to talk with other Linux systems.
474
475	  Although the ROMs shipped with Sharp Zaurus products use a
476	  different link level framing protocol, you can have them use
477	  this simpler protocol by installing a different kernel.
478
479config USB_EPSON2888
480	bool "Epson 2888 based firmware (DEVELOPMENT)"
481	depends on USB_NET_CDC_SUBSET
482	select USB_NET_CDC_SUBSET_ENABLE
483	help
484	  Choose this option to support the usb networking links used
485	  by some sample firmware from Epson.
486
487config USB_KC2190
488	bool "KT Technology KC2190 based cables (InstaNet)"
489	depends on USB_NET_CDC_SUBSET
490	select USB_NET_CDC_SUBSET_ENABLE
491	help
492	  Choose this option if you're using a host-to-host cable
493	  with one of these chips.
494
495config USB_NET_ZAURUS
496	tristate "Sharp Zaurus (stock ROMs) and compatible"
497	depends on USB_USBNET
498	select USB_NET_CDCETHER
499	select CRC32
500	default y
501	help
502	  Choose this option to support the usb networking links used by
503	  Zaurus models like the SL-5000D, SL-5500, SL-5600, A-300, B-500.
504	  This also supports some related device firmware, as used in some
505	  PDAs from Olympus and some cell phones from Motorola.
506
507	  If you install an alternate image, such as the Linux 2.6 based
508	  versions of OpenZaurus, you should no longer need to support this
509	  protocol.  Only the "eth-fd" or "net_fd" drivers in these devices
510	  really need this non-conformant variant of CDC Ethernet (or in
511	  some cases CDC MDLM) protocol, not "g_ether".
512
513config USB_NET_CX82310_ETH
514	tristate "Conexant CX82310 USB ethernet port"
515	depends on USB_USBNET
516	help
517	  Choose this option if you're using a Conexant CX82310-based ADSL
518	  router with USB ethernet port. This driver is for routers only,
519	  it will not work with ADSL modems (use cxacru driver instead).
520
521config USB_NET_KALMIA
522	tristate "Samsung Kalmia based LTE USB modem"
523	depends on USB_USBNET
524	help
525	  Choose this option if you have a Samsung Kalmia based USB modem
526	  as Samsung GT-B3730.
527
528	  To compile this driver as a module, choose M here: the
529	  module will be called kalmia.
530
531config USB_NET_QMI_WWAN
532	tristate "QMI WWAN driver for Qualcomm MSM based 3G and LTE modems"
533	depends on USB_USBNET
534	select USB_WDM
535	help
536	  Support WWAN LTE/3G devices based on Qualcomm Mobile Data Modem
537	  (MDM) chipsets.  Examples of such devices are
538	    * Huawei E392/E398
539
540	  This driver will only drive the ethernet part of the chips.
541	  The devices require additional configuration to be usable.
542	  Multiple management interfaces with linux drivers are
543	  available:
544
545	    * option: AT commands on /dev/ttyUSBx
546	    * cdc-wdm: Qualcomm MSM Interface (QMI) protocol on /dev/cdc-wdmx
547
548	  A modem manager with support for QMI is recommended.
549
550	  To compile this driver as a module, choose M here: the
551	  module will be called qmi_wwan.
552
553config USB_HSO
554	tristate "Option USB High Speed Mobile Devices"
555	depends on USB && RFKILL && TTY
556	default n
557	help
558	  Choose this option if you have an Option HSDPA/HSUPA card.
559	  These cards support downlink speeds of 7.2Mbps or greater.
560
561	  To compile this driver as a module, choose M here: the
562	  module will be called hso.
563
564config USB_NET_INT51X1
565	tristate "Intellon PLC based usb adapter"
566	depends on USB_USBNET
567	help
568	  Choose this option if you're using a 14Mb USB-based PLC
569	  (Powerline Communications) solution with an Intellon
570	  INT51x1/INT5200 chip, like the "devolo dLan duo".
571
572config USB_CDC_PHONET
573	tristate "CDC Phonet support"
574	depends on PHONET && USB_USBNET
575	help
576	  Choose this option to support the Phonet interface to a Nokia
577	  cellular modem, as found on most Nokia handsets with the
578	  "PC suite" USB profile.
579
580config USB_IPHETH
581	tristate "Apple iPhone USB Ethernet driver"
582	default n
583	help
584	  Module used to share Internet connection (tethering) from your
585	  iPhone (Original, 3G and 3GS) to your system.
586	  Note that you need userspace libraries and programs that are needed
587	  to pair your device with your system and that understand the iPhone
588	  protocol.
589
590	  For more information: http://giagio.com/wiki/moin.cgi/iPhoneEthernetDriver
591
592config USB_SIERRA_NET
593	tristate "USB-to-WWAN Driver for Sierra Wireless modems"
594	depends on USB_USBNET
595	help
596	  Choose this option if you have a Sierra Wireless USB-to-WWAN device.
597
598	  To compile this driver as a module, choose M here: the
599	  module will be called sierra_net.
600
601config USB_VL600
602	tristate "LG VL600 modem dongle"
603	depends on USB_NET_CDCETHER && TTY
604	select USB_ACM
605	help
606	  Select this if you want to use an LG Electronics 4G/LTE usb modem
607	  called VL600.  This driver only handles the ethernet
608	  interface exposed by the modem firmware.  To establish a connection
609	  you will first need a userspace program that sends the right
610	  command to the modem through its CDC ACM port, and most
611	  likely also a DHCP client.  See this thread about using the
612	  4G modem from Verizon:
613
614	  http://ubuntuforums.org/showpost.php?p=10589647&postcount=17
615
616config USB_NET_CH9200
617	tristate "QingHeng CH9200 USB ethernet support"
618	depends on USB_USBNET
619	select MII
620	help
621	  Choose this option if you have a USB ethernet adapter with a QinHeng
622	  CH9200 chipset.
623
624	  To compile this driver as a module, choose M here: the
625	  module will be called ch9200.
626
627config USB_NET_AQC111
628	tristate "Aquantia AQtion USB to 5/2.5GbE Controllers support"
629	depends on USB_USBNET
630	select CRC32
631	help
632	  This option adds support for Aquantia AQtion USB
633	  Ethernet adapters based on AQC111U/AQC112 chips.
634
635	  This driver should work with at least the following devices:
636	  * Aquantia AQtion USB to 5GbE
637
638config USB_RTL8153_ECM
639	tristate "RTL8153 ECM support"
640	depends on USB_NET_CDCETHER && (USB_RTL8152 || USB_RTL8152=n)
641	help
642	  This option supports ECM mode for RTL8153 ethernet adapter, when
643	  CONFIG_USB_RTL8152 is not set, or the RTL8153 device is not
644	  supported by r8152 driver.
645
646endif # USB_NET_DRIVERS
647