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Re: [ gpsdrive ] Support for Bluetooth GPS?

Hello,

I'm running linux on ipaq H2210, with 64Mb of ram. My distribution is 
familiar, running well. I'm using a Holux gpslim236 GPS, via bluetooth.

I do NOT want direct serial connection to be removed from gpsdrive !! it 
is so useful !

gpsd is quite fine, but takes too much resources on my embedded system 
!! and the last version (2.34) behave incorrectly as it tries to 
reconfigure the device (even with a compilation with a special option to 
prevent it to do so). My bluetooth device does not support more than 
38400 bauds, gpsd tries to change it. I had to do a short circuit on the 
board to get it working again !!!!

gpsd for me is not necessary as it takes cpu and ram for "nothing" : I 
just use one gps application : gpsdrive.

PLEASE leave direct connection to serial port into gpsdrive!

Thank you

Romain

David wrote:
> I asked this question on the list a while back and I think it may have
> been purged from the archive.
>
> I was wondering why the direct serial stuff was on the short list for
> removal and below is an extract from that thread.
>
> It appears to me at the moment that the direct serial stuff remains
> because it isn't currently causing any problems.  I have a serial only
> gps and gpsd was a snap to configure.  It is set and forget.  I know
> because I have forgotten how I did it :)
>
> David
>
> ============================================================================
> Direct gps-NMEA connection inside gpsdrive might be a fine thing, but:
>  - in the source it's mangled through different files and is not 
>    really easy to read nor is the code really up to date.
>  - the NMEA-dialect all the new GPS-receivers speak might be a 
>    little different to what the gpsdrive-NMEA parser understands.
>    we already had one issue with this the last year.
>  - the internal NMEA-parse (at least had) some severe buffer overflow 
>    chances
>  - We would have to update the same code as the GPS people do.
>    And I think the gpsd people are doing a good job with their project. 
>    And I didn't want to do the work twice. This was also the reason i 
>    removed the really old copy of gpsd which was inside GPSDrive.
>    I know I myself had some problems compiling gpsd on my boxes( arm 
>    and Debian) (because of the dbus(-1) dependency), but I hope this 
>    will be solved in the near future.
>  - With a gpsd in between we could easily add another daemon which can 
>    for example read speed info from the Car-Can-Bus and GPSDrive 
>    wouldn't have to know anything different if you have a can-bus 
>    adapter or not. But GPSDrive would get position and speed info 
>    even with no or bad Satellite reception.
>  - gpsd can also read direct-Garmin and direct-Sirf which are (as what I
> know)
>    more precise than NMEA
>  - with gpsd more than one application can connect to your gps. This
>    would for example: kismet, a track logger, a photo application with
>    position addition, ...
> ============================================================================
>
> On Sat, 2007-02-03 at 02:50 +0100, J.D. Schmidt wrote:
>   
>> Guenther Meyer skrev:
>>
>>     
>>> one other thing comes to my mind, joerg:
>>> as almost all gps-receivers should work more or less with gpsd, is the built 
>>> in serial support in gpsdrive still needed, or could it be removed?
>>>
>>> guenther
>>>       
>> IMHO the serial support should be left IN GPSdrive, not removed.
>> That way if one runs on a limited system memorywise, and aren't going to 
>> be running any other apps that should access the GPS, one can still run 
>> GPSdrive.
>>
>> GPSD is a benefit only, if you need to run multiple apps that should 
>> access a GPS.
>> Being able to use GPSDrive without other packages running, with a 
>> straight NMEA input on a serial port is IMHO a big benefit of the package.
>>
>> J.D. "Dutch" Schmidt
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