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From: David Chow <davidchow@shaolinmicro.com>
To: linux-kernel@vger.kernel.org
Subject: serial port buffer commit
Date: Wed, 27 Nov 2002 10:24:17 +0800	[thread overview]
Message-ID: <3DE42CD1.8040902@shaolinmicro.com> (raw)

Hi all,

I am writing a kernel thread for serial port communication. If the 
serial character device file is opened by a filp_open() or manipulating 
using a struct file in the kernel, how can I know whether the previous 
written buffer has commit or not? Similarly, how do I know is there any 
data ready for read for non blocking access? Thanks.

regards,
David Chow



             reply	other threads:[~2002-11-27  2:17 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2002-11-27  2:24 David Chow [this message]
  -- strict thread matches above, loose matches on Subject: below --
2002-11-26 15:56 serial port buffer commit David Chow

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