Re: [Gumstix-users] i2c-io segmentation mystery

[Tracy B. <tr...@bo...>]

Hi Dave,

I have attached the files i2c-io.c, i2c-io-api.c and i2c-io-api.h. Please
let me know if they are not attached for some reason and i will send them to
you directly. 
Tracy
http://www.nabble.com/file/p13665737/i2c-io.c i2c-io.c 
http://www.nabble.com/file/p13665737/i2c-io-api.c i2c-io-api.c 
http://www.nabble.com/file/p13665737/i2c-io-api.h i2c-io-api.h 



Dave Hylands wrote:
> 
> Hi Tracy,
> 
> On Nov 8, 2007 3:34 AM, Tracy Booysen <tr...@bo...> wrote:
>>
>> I am adding a function to the i2c-io code that will take in a byte sent
>> by
>> the user and put it in a variable, however I am getting a strange
>> segmentation fault. I have used the --verbose and --debug commands and
>> they
>> have been very helpful in allowing me to pinpoint the problem but it
>> still
>> makes no sense..
>>
>> The code below is the function from i2c-io.c it is fine until it enters
>> the
>> parse byte function and then the segmentation occurs. Since this is the
>> same
>> format as the writereg for a byte function I cannot see the problem. It
>> segments on the line that converts the const char into the byte
> 
> Then that probably means that valStr is bad somehow. I don't see
> anything obviously wrong with the ProcessWriteCommand function itself.
> Have you double checked bow ProcessWriteCommand is being called? If
> you call it the same way as you call ProcessWriteRegCommand, then you
> would be passing gRegStr as the 2nd paramater instead of gValStr.
> 
> If possible, send the whole file (i2c-io.c). It's easier to figure out
> what's going on.
> 
> -- 
> Dave Hylands
> Vancouver, BC, Canada
> http://www.DaveHylands.com/
> 
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