[Gta04-owner] Kernel 3.5 v49-1 for GTA04 has DTMF bug again

Radek Polak psonek2 at seznam.cz
Wed Sep 19 11:38:16 CEST 2012

On Wednesday, September 19, 2012 10:57:52 AM Neil Jerram wrote:

> > Hi Neil,
> > i have modified it the patch a bit (modified version attached). It works
> > for me as good as your original one, but does not need QAtChat
> > modifications. What do you think about it? I would like this version
> > better...
> > 
> > Regards
> > 
> > Radek
> Hi Radek,
> That - using send() - was how I first implemented this.  You may remember
> that I sent half an email by mistake, and then said I had more work to do.
> The theoretical problem with send is that if there are other AT commands
> already executing, or in the command queue, send will not wait for those
> commands to complete first.  For example, in a call, suppose there's a
> CLCC query in progress when send is called for a DTMF tone?
> For that reason, I thought that using send wouldn't always be reliable, and
> that we needed a solution which (1) waited for other commands to complete
> first, and (2) did not wait for a response to the VTS command - i.e. the
> noResponse solution.
> What do you think?  Although it is much simpler, I'm worried that the send
> solution will occasionally mess up the modem state.

Ahh oki, then i will use your version.



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