Re: Huawei E1820

[Steven Bellovin <smb%cs.columbia.edu@localhost>]

On Nov 25, 2010, at 4:45 55PM, Geert Hendrickx wrote:

> On Thu, Nov 25, 2010 at 09:26:44PM +0000, Antti Kantee wrote:
>> The problem with these devices is usually trying to convince it to be a
>> modem.  The basic recipe it to do a websearch for the command the modem
>> requires and, if that's not available from the driver, add it.  I
>> restructured the u3g driver in -current earlier this year to make it
>> easier, but I can't remember if that stuff is in 5.1.
>> 
>> Meanwhile, some webpage suggested this AT command to turn the device into
>> a modem permanently.  Maybe you can try running it from OS X and see if
>> it helps?
>> 
>> AT+ZOPRT=5
>> AT+ZCDRUN=8
>> 
>> (of course it would still be nice to see the driver patched to handle
>> this)
> 
> 
> On Linux there's a tool called usb_modeswitch to switch it between umass
> and umodem mode.
> 
> (the umass mode is exposed initially to install the proper drivers for
> Windows and Mac.)
> 
Actually, there are some such devices that actually have a storage slot.  I 
have a USB 727 Verizon modem that has a built-in SD card slot, for example, and 
you're free to use your own card if you wish.


                --Steve Bellovin, http://www.cs.columbia.edu/~smb