日复一日emerge

内核中加入相关支持。

Device Drivers ->
    USB support  --->
        <M> OHCI HCD support
        <M> USB Serial Converter support  --->
            [ ] USB Generic Serial Driver
            <M> USB driver for GSM and CDMA modems
    Network device support  --->
        <M> PPP (point-to-point protocol) support
        <M> PPP support for async serial ports

编辑/etc/wvdial.conf,加入下面这节

[Dialer 3G]
Init1 = ATZ
Init2 = ATQ0 V1 E1 S0=0 &C1 &D2 +FCLASS=0
Init3 = AT+CGDCONT=1,"IP","3gnet"
Modem Type = Analog Modem
Baud = 460800
#Auto DNS = 1
New PPPD = yes
Modem = /dev/ttyUSB0
ISDN = 0
Phone = *99#
Password = 3gnet
Username = 3gnet
StupidMode = 1

运行wvdial 3g拨号。成功。