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jarmniku is offline jarmniku
2010-05-31 , 12:58
Posts: 13 | Thanked: 0 times | Joined on May 2010
#1
Hi!
My program reads accelerometer from "/sys/class/i2c-adapter/i2c-3/3-001d/coord". This does not work any more after I updated to PR1.2. How should I read accelerometer now, and how to get future-compatible?
 
mikkov is offline mikkov
2010-05-31 , 13:29
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#2
How it does not work? Because it should work exactly as before.
 

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robbie is offline robbie
2010-05-31 , 13:57
Posts: 287 | Thanked: 165 times | Joined on Oct 2009 @ The Netherlands
#3
It looks to me (with my limited knowledge) that you read the coords from the device directly. My guess it that you need to use an api.
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Jussi Litja is offline Jussi Litja
2010-05-31 , 15:56
Posts: 5 | Thanked: 8 times | Joined on May 2010 @ Helsinki, Finland
#4
I have also used the file to read the orientation of the device in my application. I truly hope it still works, I´ll have to check...
 

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dart45 is offline dart45
2010-05-31 , 16:33
Posts: 16 | Thanked: 3 times | Joined on May 2009 @ Orléans, France
#5
It's still working on mine...
 

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Jussi Litja is offline Jussi Litja
2010-05-31 , 17:38
Posts: 5 | Thanked: 8 times | Joined on May 2010 @ Helsinki, Finland
#6
Checked it, still working in my device.
 

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jarmniku is offline jarmniku
2010-06-01 , 08:41
Posts: 13 | Thanked: 0 times | Joined on May 2010
#7
Originally Posted by Jussi Litja View Post
Checked it, still working in my device.
That is strange. In my device it happens like this:

Nokia-N900:~# cat /sys/class/i2c-adapter/i2c-3/3-001d/coord
cat: can't open '/sys/class/i2c-adapter/i2c-3/3-001d/coord': No such file or directory

What could be the problem?
 
Joorin is offline Joorin
2010-06-01 , 08:47
Posts: 726 | Thanked: 345 times | Joined on Apr 2010 @ Sweden
#8
Is the kernel module loaded?
 

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Robb is offline Robb
2010-06-01 , 08:55
Posts: 146 | Thanked: 76 times | Joined on Feb 2010 @ Poland
#9
Are you sure your accelerometer is still working?
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jarmniku is offline jarmniku
2010-06-02 , 06:32
Posts: 13 | Thanked: 0 times | Joined on May 2010
#10
The problem was probably wrong flash image. I have relatively old hardware and accidentally flashed an image that was for the latest HW only. Changing to another pr1.2 image (suitable for all HWs) the accelerometer started to work (though not instantly but I needed to reboot another time after flashing, so I am not sure was it really that..).
 
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