From: Arjan van de Ven <arjan@infradead.org>
To: Gabriele Brugnoni <news@dveprojects.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: interruptible_sleep_on, interrupts and device drivers
Date: Sat, 15 Oct 2005 12:05:22 +0200 [thread overview]
Message-ID: <1129370722.2908.5.camel@laptopd505.fenrus.org> (raw)
In-Reply-To: <200510151200.32148.news@dveprojects.com>
On Sat, 2005-10-15 at 12:00 +0200, Gabriele Brugnoni wrote:
> Hello,
>
> I'm writing a device driver for a UART to be used to drive a RS485 line.
> I would use the interruptible_sleep_on function to wait for receiver ready,
> or for the transmitter to finish.
don't.
interruptible_sleep_on() is a broken interface (see the comments in the
header) and should not be used in any new code (where "new" is "since
the year 2000" :)
Just use the wait_event() interfaces .... or just a simple semaphore
even if what you want to do is simple and performance isn't too
critical.
next prev parent reply other threads:[~2005-10-15 10:05 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-10-15 10:00 Gabriele Brugnoni
2005-10-15 10:05 ` Arjan van de Ven [this message]
2005-10-15 13:01 ` Tushar Adeshara
2005-10-15 10:29 Gabriele Brugnoni
2005-10-15 10:36 ` Arjan van de Ven
2005-10-15 10:57 ` Russell King
[not found] <4XQZI-5QC-1@gated-at.bofh.it>
2005-10-15 20:21 ` Robert Hancock
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