sys_geteuid() quesion

[Rumen Bogdanovski]

Hi all,
I have a simple question:
I need to make a kernel module for a specific character device.
But I need to know which uid is reading and writing because the
data written and data read should be user specific. So will
sys_geteuid() do the job for me. Or simply how can I a
module know who is calling its read or write?

Thank you in advance.

Rumen
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