From: Ondrej Zary <linux@rainbow-software.org>
To: Karel Kulhavy <clock@twibright.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: I2C EEPROM write access
Date: Wed, 25 May 2005 17:09:01 +0200 [thread overview]
Message-ID: <4294950D.2000102@rainbow-software.org> (raw)
In-Reply-To: <20050525125609.GA15412@kestrel.twibright.com>
Karel Kulhavy wrote:
> Hello
>
> Is it possible to use some Linux I2C driver to program an I2C EEPROM,
> for example 24C16?
>
> I have noticed only read-only access to "DIMM eeproms". Are they
> 24C16-alike?
SPD EEPROMs on DIMMs are 24C02.
> Is there some reason why write driver is not present like users could
> inadvertently overwrite their DIMM eeproms? Do these eeproms have a
> protection against write?
The SPD EEPROMs should not be write protected - that's what
specification says - so probably are not.
> I am mainly interested in an application where 24C16 is in-circuit
> connected to a PC and contents read and wrote (typically poking
> at firmware configuration of various devices).
>
> CL<
--
Ondrej Zary
next prev parent reply other threads:[~2005-05-25 15:07 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-05-25 12:56 I2C EEPROM write access Karel Kulhavy
2005-05-25 15:09 ` Ondrej Zary [this message]
2005-05-28 17:10 ` Jean Delvare
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