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logging data to a file.

Hi,

I want to log data, (mainly usb transactions) into a file from within
the kernel. The code writing to the file may well be running in
interrupt context, so it won't be associated with a process. What is
the best way to achieve this? Is there a more convenient way? The
reason I'm going for a file is that I want the data to persist after
the kernel is rebooted.

Thanks,
Bahadir

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