From: Kenneth Johansson <kenneth.johansson@etx.ericsson.se>
To: acurtis@onz.com
Cc: linuxppc-embedded@lists.linuxppc.org
Subject: Re: IBM ocp I2C circular dependency
Date: Tue, 07 May 2002 17:05:28 +0200 [thread overview]
Message-ID: <3CD7ED38.448C21D1@etx.ericsson.se> (raw)
In-Reply-To: NCBBIINEHIPFGJPLBEIFMEJMDGAA.acurtis@onz.com
Would that kind of problem not hang the process?? I don't see that.
Allen Curtis wrote:
>
> I can not speak toward the modularization issue but if the i2c is anything
> like the old 8260 version, change the interruptible_sleep_on() to
> interruptible_sleep_on_timeout(). IMHO this is the easiest fix.
>
> -----Original Message-----
> [mailto:owner-linuxppc-embedded@lists.linuxppc.org]On Behalf Of Kenneth
> Johansson
> Also I found a problem with the code when I access a i2c memory from
> userspace and no chip is present at that address. After that it's not
> possible to access anything else on the I2C bus. Works OK as long as I use
> addresses that have a device that answers (I think).
>
--
Kenneth Johansson
Ericsson AB Tel: +46 8 404 71 83
Borgafjordsgatan 9 Fax: +46 8 404 72 72
164 80 Stockholm kenneth.johansson@etx.ericsson.se
** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
next prev parent reply other threads:[~2002-05-07 15:05 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-05-07 13:02 IBM ocp I2C circular dependency Kenneth Johansson
2002-05-07 14:04 ` Allen Curtis
2002-05-07 15:05 ` Kenneth Johansson [this message]
2002-05-07 15:10 ` Allen Curtis
2002-05-07 15:19 ` Armin
2002-05-07 16:16 ` andrew may
2002-05-07 16:42 ` Kenneth Johansson
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