Tool for automatic style of coding guidelines

Hi

I have developed some kernel drivers and would like to send the patches for
review. But i find that I have not followed the coding guideline for tabs
and spaces properly, which can be easily corrected by using some tools like
astyle.

Can any body please help me with the proper commands string for the astyle
tool? Or could any body please suggest me with any new tool like indent etc
which you are using

-- 
Regards,

Prajosh Premdas
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