No one get the same problem as me and got the solution?
I have search for information and tried several methods to get this done. But I still cannot get the problem solved.
Here is my outcome when I run lsusb
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 002: ID 12d1:1003 Huawei Technologies Co., Ltd. E220 HSDPA Modem / E270 HSDPA/HSUPA Modem
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
The device is correctly been detected. But when I run dmesg | grep tty
, I get this.
[ 0.404757] serial8250: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A
[ 0.404927] serial8250: ttyS1 at I/O 0x2f8 (irq = 3) is a 16550A
There is no ttyUSB exists. These two ttyS device is not belong to USB modem. Before I update my BIOS to a later version that claimed to 'Fixed Legacy USB keyboard/mouse support when plugged into USB ports 2 and 3' (*USB ports 2 and 3 is the USB expansion port on my motherboard.), the USB modem works just fine, it is auto detected and connected.
I tried to modprobe usbserial
, however, from the net resources, my version of Debian do not allowed me to do this. It should be auto detected.
What should I do to fix this?