How can I get the PID of the user process which triggered my Kernel module’s file_operation.read routine (i.e., which process is reading /dev/mydev) ?
How can I get the PID of the user process which triggered my Kernel
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How can I get the PID of the user process which triggered my Kernel module’s file_operation.read routine (i.e., which process is reading /dev/mydev) ?
When your read function is executing, it’s doing so in the context of the process that issued the system call. You should thus pe able to use
current, i.e.current->pid.