gsmd question

[Tick]

Hi Mickey,
    Though I was assigned to do other stuff for months, I think gsmd 
will wait for responses.
    Actually gsmd will queue the AT commands (in pending_atcmds) until 
the last command get the response (in busy_atcmds) or timeout happened. 
Gsmd does not has the issue Bin mentioned.
The original design of gsmd is assume that every AT command will have a 
response, and gsmd will send them in one after another gets the response.
On the contrary, a main problem of gsmd before was if there has 
something wrong with modem or Uart and gsmd does not get response at 
all, the whole gsmd will hang.  But this issue had been solved  by  
adding timeout scheme and retry scheme. ;)
    It is always great to have better design. And it is also good to 
promote that, but not base on inexistent issues of other projects.

Hi Bin,
    You may take a look at atcmd.c line 246 after svn 4245. And you will 
see. :)
Also http://git.freesmartphone.org/?p=gsmd2.git;a=summary is very cool 
thing.

Cheers,
Tick

Michael 'Mickey' Lauer 提到:
> Bin Chen:
>   
>> I am a mobile phone developer and I am looking at the GSMd application
>> on OpenMoko. Seems all the AT command are sent to UART without waiting
>> the OK or ERROR response.
>> Because the intrinsic of AT command, if you don't wait for the
>> response of OK or ERROR, but send successive (quick enough) AT command
>> to GSM chip, you will get multiple OK or ERROR and you can't
>> distinguish which one is correspond to the response, because there is
>> no ID information in the OK or ERROR.
>>     
>
> Correct. This is one of the design issues in gsmd that lead to our new
> phone server (see git.freesmartphone.org).
>
> :M:
>
>
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