From: Jean Delvare <khali-PUYAD+kWke1g9hUCZPvPmw@public.gmane.org>
To: Nick Teen <xpage_de-LWAfsSFWpa4@public.gmane.org>
Cc: i2c-GZX6beZjE8VD60Wz+7aTrA@public.gmane.org
Subject: Re: i2c_smbus_write_block_data does not send all bytes?!
Date: Mon, 14 Jul 2008 22:54:24 +0200 [thread overview]
Message-ID: <20080714225424.6e183aae@hyperion.delvare> (raw)
In-Reply-To: <247321.99325.qm-SFSZVIN0dfnGRxTy+Q50vsz6deESKz/lQQ4Iyu8u01E@public.gmane.org>
Hallo Nick,
On Mon, 14 Jul 2008 20:32:25 +0000 (GMT), Nick Teen wrote:
> Hello folks,
>
> i despair of i2c_smbus_write_block_data. I try to send this few bytes:
>
> 5D W 11 02 33 44
>
> but my attached example code sends always:
>
> 5D W 11 03 33
>
> I'm perfectly happy if somebody can help me! :-)
You probably want to use i2c_smbus_write_i2c_block_data instead. With
i2c_smbus_write_block_data, the first data byte isn't real data,
instead in indicates how many bytes follow until the end of the block.
It should result in "5D W 11 33 44" in your case though, not sure why
you get "5D W 11 03 33" instead.
--
Jean Delvare
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next prev parent reply other threads:[~2008-07-14 20:54 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-07-14 20:32 i2c_smbus_write_block_data does not send all bytes?! Nick Teen
[not found] ` <247321.99325.qm-SFSZVIN0dfnGRxTy+Q50vsz6deESKz/lQQ4Iyu8u01E@public.gmane.org>
2008-07-14 20:54 ` Jean Delvare [this message]
-- strict thread matches above, loose matches on Subject: below --
2008-07-15 7:29 Nick Teen
[not found] ` <180252.53613.qm-WQsacCdWWGLGRxTy+Q50vsz6deESKz/lQQ4Iyu8u01E@public.gmane.org>
2008-07-15 7:47 ` Jean Delvare
2008-07-15 8:29 Nick Teen
[not found] ` <884255.29098.qm-WOTGQye7mknGRxTy+Q50vsz6deESKz/lQQ4Iyu8u01E@public.gmane.org>
2008-07-15 10:57 ` Jean Delvare
[not found] ` <20080715125702.48c9569b-ig7AzVSIIG7kN2dkZ6Wm7A@public.gmane.org>
2008-07-15 12:22 ` Nick Teen
[not found] ` <952972.59634.qm-WQsacCdWWGLGRxTy+Q50vsz6deESKz/lQQ4Iyu8u01E@public.gmane.org>
2008-07-15 12:32 ` Jean Delvare
[not found] ` <20080715143258.2bef9c1e-ig7AzVSIIG7kN2dkZ6Wm7A@public.gmane.org>
2008-07-15 13:02 ` Nick Teen
[not found] ` <732644.12112.qm-qWTMlLQujKzGRxTy+Q50vsz6deESKz/lQQ4Iyu8u01E@public.gmane.org>
2008-07-15 13:13 ` Jean Delvare
[not found] ` <785052.52325.qm@web27604.mail.ukl.yahoo.com>
[not found] ` <785052.52325.qm-qWTMlLQujKzGRxTy+Q50vsz6deESKz/lQQ4Iyu8u01E@public.gmane.org>
2008-07-15 16:52 ` Jean Delvare
[not found] ` <20080715185223.7f2f39aa-ig7AzVSIIG7kN2dkZ6Wm7A@public.gmane.org>
2008-07-15 17:28 ` Nick Teen
[not found] ` <968764.38783.qm-fkCdBXra523GRxTy+Q50vsz6deESKz/lQQ4Iyu8u01E@public.gmane.org>
2008-07-15 17:52 ` Jean Delvare
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