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[GH-ISSUE #8] RM520NGLAP-linux driver #6

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opened 2026-03-13 14:06:04 +03:00 by kerem · 1 comment
kerem commented 2026-03-13 14:06:04 +03:00
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Originally created by @HelloRay123 on GitHub (Dec 11, 2023).
Original GitHub issue: https://github.com/4IceG/RM520N-GL/issues/8

Hello,
Please check whether there is a linux driver for RM520NGLAP, which support PCIe interface only. Thanks.

Originally created by @HelloRay123 on GitHub (Dec 11, 2023). Original GitHub issue: https://github.com/4IceG/RM520N-GL/issues/8 Hello, Please check whether there is a linux driver for RM520NGLAP, which support PCIe interface only. Thanks.
kerem commented 2026-03-13 14:06:10 +03:00
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@MADRAFi commented on GitHub (Jun 17, 2025):

My modem RM520N-GL does not respond to queries to the other devices than /dev/wwan-mbim0.
wwan0at0 does not work.
Can you please support it, so 3ginfo works? Also modem device wwan0 does not show up after cold boot.

0003:01:00.0 Unassigned class [ff00]: Qualcomm Technologies, Inc Device 0308
Subsystem: Qualcomm Technologies, Inc Device 5201
Control: I/O- Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- SERR- <PERR- INTx-

umbim -d /dev/wwan0mbim0 caps

devicetype: 0001 - embedded
cellularclass: 0001
voiceclass: 0001 - no-voice
simclass: 0002
dataclass: 8000003C
smscaps: 0003
controlcaps: 0001
maxsessions: 000F
deviceid: 868371050046883
firmwareinfo: RM520NGLAAR03A04M4G
hardwareinfo: RM520N-GL

<!-- gh-comment-id:2980696279 --> @MADRAFi commented on GitHub (Jun 17, 2025): My modem RM520N-GL does not respond to queries to the other devices than /dev/wwan-mbim0. wwan0at0 does not work. Can you please support it, so 3ginfo works? Also modem device wwan0 does not show up after cold boot. 0003:01:00.0 Unassigned class [ff00]: Qualcomm Technologies, Inc Device 0308 Subsystem: Qualcomm Technologies, Inc Device 5201 Control: I/O- Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+ Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- # umbim -d /dev/wwan0mbim0 caps devicetype: 0001 - embedded cellularclass: 0001 voiceclass: 0001 - no-voice simclass: 0002 dataclass: 8000003C smscaps: 0003 controlcaps: 0001 maxsessions: 000F deviceid: 868371050046883 firmwareinfo: RM520NGLAAR03A04M4G hardwareinfo: RM520N-GL
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