dev_* mesage

2015-07-17 Thread roni 
What is the difference between dev_* (like dev_err) and pr_* (like
pr_err)? 
In which situations we use them?


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Transfer Buffer in URB

2015-06-25 Thread roni 
What is the transfer buffer in URB?

What is the job of transfer buffer?


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Global variables

2015-06-14 Thread roni 
I know i should avoid using global variables in kernel programming.

What problem it create if i use more global variables?


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