From mboxrd@z Thu Jan  1 00:00:00 1970
From: rcpilot2010@gmail.com (Abu Rasheda)
Date: Mon, 2 May 2011 11:32:32 -0700
Subject: Sleep and Wake up
Message-ID: <BANLkTimpAEycOnqO1qErguf0zbuLd8yB8g@mail.gmail.com>
To: kernelnewbies@lists.kernelnewbies.org
List-Id: kernelnewbies.lists.kernelnewbies.org

I am testing my driver on much faster host processor and facing
following issues:

My host is too powerful and it can fill up device buffer queue very fast.

I get best performance when I do busy wait, but this is not desirable
and is bad design.

I need to sleep and wake up quickly and predictability. Indication
from device that queue has space, is coming in form of memory write
(device writes to a memory location of i86 processor).

I tried using wait_event_interruptible_timeout, I am depending on 2nd
parameter of the function but it wake up is too slow, even tried using
value of 1.

Any suggestions ?