Help!
The kernel related code has been modified according to the document, and all kernel modules have been enabled and set to: AT+QCFG=“usbnet”, 0. The query result also matches, but after running the Quectel cm program, the error result is as follows:
root@openstick:~/qcm# ./quectel-CM
[09-09_21:29:49:575] QConnectManager_Linux_V1.6.7
[09-09_21:29:49:584] Find /sys/bus/usb/devices/1-1.2 idVendor=0x2c7c idProduct=0x125, bus=0x001, dev=0x00c
[09-09_21:29:49:587] Auto find qmichannel = /dev/cdc-wdm0
[09-09_21:29:49:587] Auto find usbnet_adapter = wwan8
[09-09_21:29:49:588] netcard driver = qmi_wwan, driver version = 6.12.1-msm8916-gdd1ab2933b1f
[09-09_21:29:49:588] unsupport software_interface 1
root@openstick:~/qcm# ./quectel-CM
[09-09_21:29:51:071] QConnectManager_Linux_V1.6.7
[09-09_21:29:51:080] Find /sys/bus/usb/devices/1-1.2 idVendor=0x2c7c idProduct=0x125, bus=0x001, dev=0x00c
[09-09_21:29:51:082] Auto find qmichannel = /dev/cdc-wdm0
[09-09_21:29:51:083] Auto find usbnet_adapter = wwan8
[09-09_21:29:51:083] netcard driver = qmi_wwan, driver version = 6.12.1-msm8916-gdd1ab2933b1f
[09-09_21:29:51:083] unsupport software_interface 1
root@openstick:~/qcm# ./quectel-CM -v
[09-09_21:30:11:354] QConnectManager_Linux_V1.6.7
[09-09_21:30:11:356] (/sys/bus/usb/devices/1-1.1/idVendor) = bda
[09-09_21:30:11:356] (/sys/bus/usb/devices/1-1.1/idProduct) = 8152
[09-09_21:30:11:357] (/sys/bus/usb/devices/1-1.1/busnum) = 1
[09-09_21:30:11:357] (/sys/bus/usb/devices/1-1.1/devnum) = 3
[09-09_21:30:11:358] (/sys/bus/usb/devices/1-1.1/bNumInterfaces) = 1
[09-09_21:30:11:358] (/sys/bus/usb/devices/1-1.1:1.0/bNumEndpoints) = 3
[09-09_21:30:11:359] (/sys/bus/usb/devices/1-1.1:1.0/bInterfaceClass) = ff
[09-09_21:30:11:359] (/sys/bus/usb/devices/1-1.1:1.0/bInterfaceSubClass) = ff
[09-09_21:30:11:360] (/sys/bus/usb/devices/1-1.1:1.0/bInterfaceProtocol) = 0
[09-09_21:30:11:360] driver → ../../../../../../../../../bus/usb/drivers/r8152
[09-09_21:30:11:361] (/sys/bus/usb/devices/1-1/idVendor) = 1a40
[09-09_21:30:11:362] (/sys/bus/usb/devices/1-1/idProduct) = 101
[09-09_21:30:11:362] (/sys/bus/usb/devices/1-1/busnum) = 1
[09-09_21:30:11:362] (/sys/bus/usb/devices/1-1/devnum) = 2
[09-09_21:30:11:363] (/sys/bus/usb/devices/1-1/bNumInterfaces) = 1
[09-09_21:30:11:364] (/sys/bus/usb/devices/1-1.2/idVendor) = 2c7c
[09-09_21:30:11:365] (/sys/bus/usb/devices/1-1.2/idProduct) = 125
[09-09_21:30:11:365] (/sys/bus/usb/devices/1-1.2/busnum) = 1
[09-09_21:30:11:366] (/sys/bus/usb/devices/1-1.2/devnum) = c
[09-09_21:30:11:366] (/sys/bus/usb/devices/1-1.2/bNumInterfaces) = 5
[09-09_21:30:11:366] Find /sys/bus/usb/devices/1-1.2 idVendor=0x2c7c idProduct=0x125, bus=0x001, dev=0x00c
[09-09_21:30:11:367] (/sys/bus/usb/devices/1-1.2:1.4/bNumEndpoints) = 3
[09-09_21:30:11:368] (/sys/bus/usb/devices/1-1.2:1.4/bInterfaceClass) = ff
[09-09_21:30:11:369] (/sys/bus/usb/devices/1-1.2:1.4/bInterfaceSubClass) = ff
[09-09_21:30:11:369] (/sys/bus/usb/devices/1-1.2:1.4/bInterfaceProtocol) = ff
[09-09_21:30:11:369] driver → ../../../../../../../../../bus/usb/drivers/qmi_wwan
[09-09_21:30:11:370] /sys/bus/usb/devices/1-1.2:1.4/usbmisc
[09-09_21:30:11:370] Auto find qmichannel = /dev/cdc-wdm0
[09-09_21:30:11:370] Auto find usbnet_adapter = wwan8
[09-09_21:30:11:371] netcard driver = qmi_wwan, driver version = 6.12.1-msm8916-gdd1ab2933b1f
[09-09_21:30:11:371] unsupport software_interface 1
echo -e ‘AT+QCFG=“usbnet”\r\n’ >/dev/ttyUSB2
+QCFG: “usbnet”,0
OK
root@openstick:~/qcm# lsusb -t
/: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=ci_hdrc/1p, 480M
|__ Port 1: Dev 2, If 0, Class=Hub, Driver=hub/4p, 480M
|__ Port 1: Dev 3, If 0, Class=Vendor Specific Class, Driver=r8152, 480M
|__ Port 2: Dev 12, If 3, Class=Vendor Specific Class, Driver=option, 480M
|__ Port 2: Dev 12, If 1, Class=Vendor Specific Class, Driver=option, 480M
|__ Port 2: Dev 12, If 4, Class=Vendor Specific Class, Driver=qmi_wwan, 480M
|__ Port 2: Dev 12, If 2, Class=Vendor Specific Class, Driver=option, 480M
|__ Port 2: Dev 12, If 0, Class=Vendor Specific Class, Driver=option, 480M
root@openstick:~/qcm# cat /sys/kernel/debug/usb/ci_hdrc.0/device
speed = 0
max_speed = 3
is_otg = 0
is_a_peripheral = 0
b_hnp_enable = 0
a_hnp_support = 0
a_alt_hnp_support = 0
name = ci_hdrc_msm
gadget function = g1
gadget max speed = 6
root@openstick:~/qcm# cat /sys/kernel/debug/usb/devices
T: Bus=01 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#= 1 Spd=480 MxCh= 1
B: Alloc= 0/800 us ( 0%), #Int= 4, #Iso= 0
D: Ver= 2.00 Cls=09(hub ) Sub=00 Prot=01 MxPS=64 #Cfgs= 1
P: Vendor=1d6b ProdID=0002 Rev= 6.12
S: Manufacturer=Linux 6.12.1-msm8916-gdd1ab2933b1f ehci_hcd
S: Product=EHCI Host Controller
S: SerialNumber=ci_hdrc.0
C:* #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr= 0mA
I:* If#= 0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=00 Driver=hub
E: Ad=81(I) Atr=03(Int.) MxPS= 4 Ivl=256ms
T: Bus=01 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#= 2 Spd=480 MxCh= 4
D: Ver= 2.00 Cls=09(hub ) Sub=00 Prot=01 MxPS=64 #Cfgs= 1
P: Vendor=1a40 ProdID=0101 Rev= 1.00
S: Product=USB2.0 HUB
C:* #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr=100mA
I:* If#= 0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=00 Driver=hub
E: Ad=81(I) Atr=03(Int.) MxPS= 1 Ivl=256ms
T: Bus=01 Lev=02 Prnt=02 Port=00 Cnt=01 Dev#= 3 Spd=480 MxCh= 0
D: Ver= 2.10 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs= 2
P: Vendor=0bda ProdID=8152 Rev=20.00
S: Manufacturer=Realtek
S: Product=USB 10/100 LAN
S: SerialNumber=00E04C3608A7
C:* #Ifs= 1 Cfg#= 1 Atr=a0 MxPwr=100mA
I:* If#= 0 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=00 Driver=r8152
E: Ad=81(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E: Ad=02(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E: Ad=83(I) Atr=03(Int.) MxPS= 2 Ivl=16ms
C: #Ifs= 2 Cfg#= 2 Atr=a0 MxPwr=100mA
I: If#= 0 Alt= 0 #EPs= 1 Cls=02(comm.) Sub=06 Prot=00 Driver=
E: Ad=83(I) Atr=03(Int.) MxPS= 16 Ivl=16ms
I: If#= 1 Alt= 0 #EPs= 0 Cls=0a(data ) Sub=00 Prot=00 Driver=
I: If#= 1 Alt= 1 #EPs= 2 Cls=0a(data ) Sub=00 Prot=00 Driver=
E: Ad=81(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E: Ad=02(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
T: Bus=01 Lev=02 Prnt=02 Port=01 Cnt=02 Dev#= 12 Spd=480 MxCh= 0
D: Ver= 2.00 Cls=ef(misc ) Sub=02 Prot=01 MxPS=64 #Cfgs= 1
P: Vendor=2c7c ProdID=0125 Rev= 3.18
S: Manufacturer=Android
S: Product=Android
C:* #Ifs= 5 Cfg#= 1 Atr=a0 MxPwr=500mA
I:* If#= 0 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=option
E: Ad=81(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E: Ad=01(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
I:* If#= 1 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
E: Ad=83(I) Atr=03(Int.) MxPS= 10 Ivl=32ms
E: Ad=82(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E: Ad=02(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
I:* If#= 2 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
E: Ad=85(I) Atr=03(Int.) MxPS= 10 Ivl=32ms
E: Ad=84(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E: Ad=03(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
I:* If#= 3 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
E: Ad=87(I) Atr=03(Int.) MxPS= 10 Ivl=32ms
E: Ad=86(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E: Ad=04(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
I:* If#= 4 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=ff Driver=qmi_wwan
E: Ad=89(I) Atr=03(Int.) MxPS= 8 Ivl=32ms
E: Ad=88(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E: Ad=05(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms