From: mds@mds.gotdns.com (Mark Studebaker)
To: lm-sensors@vger.kernel.org
Subject: 回复： Re: [lm-sensors] eeprom write!
Date: Fri, 23 Sep 2005 00:36:15 +0000 [thread overview]
Message-ID: <433331A8.5050801@mds.gotdns.com> (raw)
see the userspace programs and documents in prog/eepromer
in the lm-sensors package.
the kernel module does not support writes.
junping feng wrote:
> I am sorry for my fault of the eeprom. My eeprom is
> AT24C01A,and its size is 1Kbits(128Bytes).
> In the ile /lm_sensors-2.5.0/kernel/chips/eeprom.c,
> how can I complete the function of writing to the
> chip?
> please help me !
> Can you give me the source codes?
> Thanks!
>
>
> --- Ben Dooks <ben@fluff.org.uk>??:
>
>
>>On Tue, Sep 20, 2005 at 05:52:54PM +0800, junping
>>feng wrote:
>>
>>>Hi,
>>> My cpu is PowerPC8250.I2C device is eeprom
>>
>>AT24C01.
>>
>>>I want to access the eeprom,read from the eeprom
>>
>>and
>>
>>>write to it.
>>> I have read the file
>>>/lm_sensors-2.5.0/kernel/chips/eeprom.c,but this
>>
>>file
>>
>>>can't achieve writing function and only can read
>>
>>128
>>
>>>bytes.
>>> How can i complete the writing functions and
>>
>>read
>>
>>>total the chip (1024 bytes).
>>
>>The chip is only 128 bytes big. You are confusing
>>the
>>_bit_ size (which is 1024bits).
>>
>>I have no actual experience of this chip, but the
>>data-sheet implies it is only capable of page-write
>>of 4 bytes at a time, so it could be the eeprom
>>driver is trying to write too much data in one go.
>>
>>--
>>Ben (ben@fluff.org, http://www.fluff.org/)
>>
>> 'a smiley only costs 4 bytes'
>>
>
>
>
>
>
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>
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next reply other threads:[~2005-09-23 0:36 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-09-23 0:36 Mark Studebaker [this message]
-- strict thread matches above, loose matches on Subject: below --
2005-09-21 3:58 回复： Re: [lm-sensors] eeprom write! junping feng
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