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Subjectkill_fasync question

I know we can use kill_fasync( ) to send signal the user process that data has arrived and maybe by using like ioctl method the user process can get the event data(buffer).

Is there any way wherein we can send event data(buffer) back to the user process.
kill_fasync( ) takes three parameters async_queue, SIGIO, band.
What I am looking is not only that the driver to signal the user process that data has arrived, but also can send the data back.
kill_fasync is used only to notify the user process.

Thanks for your help in advance.

With regards,

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