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net: usb: qmi_wwan: add Quectel EG120K-EA

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Add support for the Quectel EG120K-EA LTE Cat.12 module (USB ID
2c7c:030b). Its QMI interface (interface 4) uses class/subclass/protocol
ff/ff/ff like the other recent Quectel modules, so match it the same way.

The product ID is shared with the EM060K, which the option driver
already knows and uses to claim the serial interfaces. Without a
qmi_wwan entry the data interface is left unbound.

Tested on a GL.iNet GL-X2000, where the module is soldered down and
enumerates at SuperSpeed: cdc-wdm0 and wwan0 appear and ModemManager
brings up a data session.

T:  Bus=02 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#=  2 Spd=5000 MxCh= 0
D:  Ver= 3.10 Cls=00(>ifc ) Sub=00 Prot=00 MxPS= 9 #Cfgs=  1
P:  Vendor=2c7c ProdID=030b Rev= 5.04
S:  Manufacturer=Quectel
S:  Product=EG120K-EA
S:  SerialNumber=45546267
C:* #Ifs= 6 Cfg#= 1 Atr=a0 MxPwr=896mA
I:* If#= 0 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=30 Driver=option
E:  Ad=01(O) Atr=02(Bulk) MxPS=1024 Ivl=0ms
E:  Ad=81(I) Atr=02(Bulk) MxPS=1024 Ivl=0ms
I:* If#= 1 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=40 Driver=option
E:  Ad=83(I) Atr=03(Int.) MxPS=  10 Ivl=32ms
E:  Ad=82(I) Atr=02(Bulk) MxPS=1024 Ivl=0ms
E:  Ad=02(O) Atr=02(Bulk) MxPS=1024 Ivl=0ms
I:* If#= 2 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=40 Driver=option
E:  Ad=85(I) Atr=03(Int.) MxPS=  10 Ivl=32ms
E:  Ad=84(I) Atr=02(Bulk) MxPS=1024 Ivl=0ms
E:  Ad=03(O) Atr=02(Bulk) MxPS=1024 Ivl=0ms
I:* If#= 3 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=40 Driver=option
E:  Ad=87(I) Atr=03(Int.) MxPS=  10 Ivl=32ms
E:  Ad=86(I) Atr=02(Bulk) MxPS=1024 Ivl=0ms
E:  Ad=04(O) Atr=02(Bulk) MxPS=1024 Ivl=0ms
I:* If#= 4 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=ff Driver=qmi_wwan
E:  Ad=88(I) Atr=03(Int.) MxPS=   8 Ivl=32ms
E:  Ad=8e(I) Atr=02(Bulk) MxPS=1024 Ivl=0ms
E:  Ad=0f(O) Atr=02(Bulk) MxPS=1024 Ivl=0ms
I:* If#=12 Alt= 0 #EPs= 1 Cls=ff(vend.) Sub=ff Prot=70 Driver=(none)
E:  Ad=89(I) Atr=02(Bulk) MxPS=1024 Ivl=0ms

Signed-off-by: Gilberto Conde <gilbertorconde@gmail.com>
Link: https://patch.msgid.link/20260921093426.2870266-1-gilbertorconde@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Gilberto Conde 2026-09-21 10:34:26 +01:00 • committed by Jakub Kicinski
commit 0f2fd31f63
1 changed files with 1 additions and 0 deletions
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