From: Wolfgang Denk <wd@denx.de>
To: miguel.valero@axxessit.no
Cc: linuxppc-embedded@lists.linuxppc.org
Subject: Re: DS1340 RTC (i2c device)
Date: Mon, 19 Jul 2004 10:37:47 +0200 [thread overview]
Message-ID: <20040719083752.58CA5C109F@atlas.denx.de> (raw)
In-Reply-To: Your message of "Mon, 19 Jul 2004 08:44:12 +0200." <OFBE3E7E82.C477AD44-ONC1256ED6.0024E631@axxessit.no>
In message <OFBE3E7E82.C477AD44-ONC1256ED6.0024E631@axxessit.no> you wrote:
>
> Does anyone have any good suggestions about how to handle an i2c RTC
> device, as f.e. the Maxim ds1340 ?
Sorry, can't help here.
> The question is whether the i2c driver is already in place by the time
> these functions are called, so that I can register a driver for the
> ds1340. Has anyone done something like that ?
I2C based RTCs have been in use for a long time. Just register the
RTC functions when the I2C driver comes up.
And make sure to disable the 11 minute mode or you may run into
problems (you'll know what I mean when your system crashes after 11
minutes). See the list archive for details.
Best regards,
Wolfgang Denk
--
Software Engineering: Embedded and Realtime Systems, Embedded Linux
Phone: (+49)-8142-4596-87 Fax: (+49)-8142-4596-88 Email: wd@denx.de
A verbal contract isn't worth the paper it's written on.
-- Samuel Goldwyn
** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
next prev parent reply other threads:[~2004-07-19 8:37 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-07-19 6:44 DS1340 RTC (i2c device) miguel.valero
2004-07-19 6:58 ` Sylvain Munaut
2004-07-19 8:37 ` Wolfgang Denk [this message]
-- strict thread matches above, loose matches on Subject: below --
2004-07-19 14:18 Dixon, Myron @ GNS
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