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Vyzkoušeno :

rmmod usb_storage
sleep 1
rmmod uhci_hcd
sleep 1
rmmod ehci_hcd
sleep 1
rmmod usbhid
sleep 1
rmmod option
sleep 1
rmmod usb_wwan
sleep 1
rmmod usbserial
sleep 1
rmmod usbcore
sleep 2
modprobe uhci_hcd
sleep 1
modprobe ehci_hcd
sleep 2
modprobe usbserial vendor=0x12d1 product=0x140c
sleep 1
#switch to modem mode :
/lib/udev/usb_modeswitch --vendor 0x12d1 --product 0x1446 --type option-zerocd

A stejně nic.

wvdial
--> WvDial: Internet dialer version 1.60
--> Cannot get information for serial port.
--> Initializing modem.
--> Sending: ATZ
ATZ
OK
--> Sending: AT+CSQ
AT+CSQ
+CSQ: 19,99
OK
--> Sending: AT^U2DIAG=0
AT^U2DIAG=0
OK
--> Sending: AT^U2DIAG=?
AT^U2DIAG=?
^U2DIAG:The current value is:
       0
OK
--> Sending: ATX3
ATX3
OK
--> Sending: ATQ0 V1 E1 S0=0 &C1 &D2 +FCLASS=0
ATQ0 V1 E1 S0=0 &C1 &D2 +FCLASS=0
OK
--> Sending: AT+CFUN=1;+CGDCONT=1,"IP","internet"
AT+CFUN=1;+CGDCONT=1,"IP","internet"
OK
--> Modem initialized.
--> Sending: ATD*99#
--> Waiting for carrier.
ATD*99#
NO CARRIER
--> No Carrier!  Trying again.
--> Sending: ATD*99#
--> Waiting for carrier.
ATD*99#
NO CARRIER

Každopdáně jsem si myslel, že pokud je ten usb shit správně přepnut do módu modemu, tak by se snad neměla v logách objevit informace o flash disku + mechanice, viz (nebo se mýlím?):

[ 9463.170641] usbcore: registered new interface driver usbserial
[ 9463.170845] USB Serial support registered for generic
[ 9463.171072] usbcore: registered new interface driver usbserial_generic
[ 9463.171074] usbserial: USB Serial Driver core
[ 9463.177852] USB Serial support registered for GSM modem (1-port)
[ 9463.178094] option 4-1:1.0: GSM modem (1-port) converter detected
[ 9463.178240] usb 4-1: GSM modem (1-port) converter now attached to ttyUSB0
[ 9463.178252] option 4-1:1.1: GSM modem (1-port) converter detected
[ 9463.178355] usb 4-1: GSM modem (1-port) converter now attached to ttyUSB1
[ 9463.178365] option 4-1:1.2: GSM modem (1-port) converter detected
[ 9463.178470] usb 4-1: GSM modem (1-port) converter now attached to ttyUSB2
[ 9463.178500] usbcore: registered new interface driver option
[ 9463.178502] option: v0.7.2:USB Driver for GSM modems
[ 9468.061853] usb-storage: device scan complete
[ 9468.064308] scsi 25:0:0:0: CD-ROM            HUAWEI   Mass Storage     2.31 PQ: 0 ANSI: 2
[ 9468.065321] usb-storage: device scan complete
[ 9468.068864] scsi 26:0:0:0: Direct-Access     HUAWEI   SD Storage       2.31 PQ: 0 ANSI: 2
[ 9468.081819] sr0: scsi-1 drive
[ 9468.081992] sr 25:0:0:0: Attached scsi CD-ROM sr0
[ 9468.082102] sr 25:0:0:0: Attached scsi generic sg1 type 5
[ 9468.083749] sd 26:0:0:0: Attached scsi generic sg2 type 0
[ 9468.099846] sd 26:0:0:0: [sdb] Attached SCSI removable disk

Konfigurace wvdial (přidal jsem volání "AT^U2DIAG" a "ATX3" ):

[Dialer Defaults]
Modem = /dev/ttyUSB0

Dial Command = ATD
Init1 = ATZ
Init2 = AT+CSQ
Init3 = AT^U2DIAG=0
Init4 = AT^U2DIAG=?
Init5 = ATX3
Init6 = ATQ0 V1 E1 S0=0 &C1 &D2 +FCLASS=0
Init7 = AT+CFUN=1;+CGDCONT=1,"IP","internet"
Phone = *99#
Auto DNS = 1

Modem Type = USB Modem
Stupid Mode = 1
Ask Password = 0

Baud = 912600
#Baud = 9600
FlowControl = NOFLOW

Idle Seconds = 0
Auto Reconnect = 1
Compuserve = 0
ISDN = 0

Username = " "
Password = " "

Zkusím si více pohrát s modeswitch a resetováním usb odkazovaném níže.
Jinak pokud provedu šaškárnu s modulama, tak v dmesg je stále vidět načtení flash disku a mechaniky, ale když ve wvdial zakomentuji nastavení "AT^U2DIAG=0" a nechám jen dotaz "AT^U2DIAG=?", tak mi vrátí odpověď "0", tz., čistě jen modem mode. Snížení baudrate jsem také zkoušel.
Zdar Max