From: Wolfram Sang <w.sang-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>
To: "Albrecht Dreß" <albrecht.dress-KvP5wT2u2U0@public.gmane.org>
Cc: linux-i2c-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
"Eric W. Biederman"
<ebiederm-aS9lmoZGLiVWk0Htik3J/w@public.gmane.org>,
Jean Delvare <khali-PUYAD+kWke1g9hUCZPvPmw@public.gmane.org>
Subject: Re: [PATCH] misc/eeprom/at24: init dynamic bin_attribute structures
Date: Fri, 12 Mar 2010 01:12:38 +0100 [thread overview]
Message-ID: <20100312001238.GA10684@pengutronix.de> (raw)
In-Reply-To: <1268331680.2272.0@antares>
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> Just an other dumb question: as I mentioned, the driver is loaded even if no
> chip is attached to the i2c bus. Wouldn't it make sense to check if the chip
> is there (e.g. by reading the first byte), and eject with ENODEV if it isn't?
That would be part of a detect-callback. In probe() the device is already
considered to be present. But you can instantiate devices at runtime if you
want to add the eeprom dynamically (Documentation/i2c/instantiating-devices)
Regards,
Wolfram
--
Pengutronix e.K. | Wolfram Sang |
Industrial Linux Solutions | http://www.pengutronix.de/ |
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prev parent reply other threads:[~2010-03-12 0:12 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-03-11 0:55 [PATCH] misc/eeprom/at24: init dynamic bin_attribute structures Wolfram Sang
[not found] ` <1268268932-23447-1-git-send-email-w.sang-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>
2010-03-11 7:58 ` Jean Delvare
[not found] ` <20100311085835.34c6cd51-ig7AzVSIIG7kN2dkZ6Wm7A@public.gmane.org>
2010-03-11 8:03 ` Wolfram Sang
[not found] ` <20100311080347.GB16219-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>
2010-03-11 10:54 ` Jean Delvare
[not found] ` <20100311115426.6440837c-ig7AzVSIIG7kN2dkZ6Wm7A@public.gmane.org>
2010-03-11 11:23 ` Wolfram Sang
[not found] ` <20100311112321.GA28805-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>
2010-03-11 14:57 ` Jean Delvare
[not found] ` <20100311155753.25fc9a5c-ig7AzVSIIG7kN2dkZ6Wm7A@public.gmane.org>
2010-03-12 7:12 ` Wolfram Sang
2010-03-11 18:21 ` Albrecht Dreß
2010-03-12 0:12 ` Wolfram Sang [this message]
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