Automatic Activation, Hotplug and UDEV, Configuration
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liaojunwu
Posts: 1
Joined: 30 Nov 2023, 02:57

DisableMBIMGlobal

Post by liaojunwu » 30 Nov 2023, 05:46

I have a HUAWEI ME909s-821(12d1, 15c1) running on my debian12 linux, and I am confused the config DisableMBIMGlobal.
1st, DisableMBIMGlobal=0 and no other configs under /etc/usb_modeswitch.d, the OS will choose the configuration 2 and probe successfully with option.c and cdc_ether.c
unfortunately, the OS will soon detached the drivers but no mbim drivers attached, which means this modem was not available now:

Code: Select all

[  115.347838] usb 1-1: Manufacturer: Huawei Technologies Co., Ltd.
[  115.353863] usb 1-1: SerialNumber: 0123456789ABCDEF
[  115.694177] usbcore: registered new interface driver option
[  115.700079] usbserial: USB Serial support registered for GSM modem (1-port)
[  115.710105] cdc_ether 1-1:2.0 wwan0: register 'cdc_ether' at usb-xhci-hcd.0.auto-1, Mobile Broadband Network Device, 02:1e:10:1f:00:00
[  115.722885] usbcore: registered new interface driver cdc_ether
[  115.722981] option 1-1:2.2: GSM modem (1-port) converter detected
[  115.735434] usb 1-1: GSM modem (1-port) converter now attached to ttyUSB1
[  115.742674] option 1-1:2.3: GSM modem (1-port) converter detected
[  115.749374] usb 1-1: GSM modem (1-port) converter now attached to ttyUSB2
[  115.757963] option 1-1:2.4: GSM modem (1-port) converter detected
[  115.764641] usb 1-1: GSM modem (1-port) converter now attached to ttyUSB3
[  115.771944] option 1-1:2.5: GSM modem (1-port) converter detected
[  115.778974] usb 1-1: GSM modem (1-port) converter now attached to ttyUSB4
[  115.786177] option 1-1:2.6: GSM modem (1-port) converter detected
[  115.792875] usb 1-1: GSM modem (1-port) converter now attached to ttyUSB5
[  115.834208] cdc_ether 1-1:2.0 wwx021e101f0000: renamed from wwan0
[  116.556624] cdc_ether 1-1:2.0 wwx021e101f0000: unregister 'cdc_ether' usb-xhci-hcd.0.auto-1, Mobile Broadband Network Device
[  116.568184] [LJW DEBUG], cdc_ether disconnect, dump_stack()!
[  116.574103] CPU: 2 PID: 1135 Comm: usb_modeswitch Not tainted 6.1.54-cip6 #1
[  116.581153] Hardware name: Unknown Unknown Product/Unknown Product, BIOS 2023.10-D01.04.00.06-0-g9ae7ac9 10/01/2023
[  116.591570] Call trace:
[  116.594009]  dump_backtrace.part.0+0xe0/0xf0
[  116.598288]  show_stack+0x18/0x30
[  116.601600]  dump_stack_lvl+0x64/0x80
[  116.605258]  dump_stack+0x18/0x34
[  116.608565]  usbnet_disconnect+0x12c/0x130 [usbnet]
[  116.613465]  usb_unbind_interface+0x78/0x26c
[  116.617731]  device_remove+0x70/0x80
[  116.621304]  device_release_driver_internal+0x1e4/0x250
[  116.626522]  device_release_driver+0x18/0x24
[  116.630785]  usb_driver_release_interface+0x5c/0x84
[  116.635655]  proc_ioctl+0x250/0x290
[  116.639138]  usbdev_ioctl+0x1538/0x1b10
[  116.642966]  __arm64_sys_ioctl+0xac/0xf0
[  116.646887]  invoke_syscall+0x48/0x114
[  116.650632]  el0_svc_common.constprop.0+0x44/0xec
[  116.655331]  do_el0_svc+0x2c/0xd0
[  116.658641]  el0_svc+0x2c/0x84
[  116.661689]  el0t_64_sync_handler+0xf4/0x120
[  116.665951]  el0t_64_sync+0x18c/0x190
[  116.695369] option1 ttyUSB1: GSM modem (1-port) converter now disconnected from ttyUSB1
so, anyone encountered this issue?

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