From: Jonathan Cameron <jic23-KWPb1pKIrIJaa/9Udqfwiw@public.gmane.org>
To: alfred steele <alfred.jaquez-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Cc: Michael Lawnick <ml.lawnick-Mmb7MZpHnFY@public.gmane.org>,
linux-i2c-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
LM Sensors <lm-sensors-GZX6beZjE8VD60Wz+7aTrA@public.gmane.org>
Subject: Re: [lm-sensors] Use the Linux I2C subsystem for a two wire interface protocol
Date: Thu, 16 Jul 2009 18:51:20 +0000 [thread overview]
Message-ID: <4A5F76A8.8080001@cam.ac.uk> (raw)
In-Reply-To: <528f13590907160929r1385c99el6c1ed16ca1b592d2-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
alfred steele wrote:
>> ~$ insmod sht15.ko
>> regulator: Unable to get requested regulator: vcc
>> sht15 sht15: Command not acknowledged
> Please ignore the 1st line as i have bypassed the regulator framework.
> Another quick question: The datasheet recommends 3.3V but the
> voltage measured on my lines are ~2.8V. That could be another spoiler.
It'll probably be fine.
I suggest sticking a scope on the signal lines and confirming things
that look about right are going down them.
Jonathan
WARNING: multiple messages have this Message-ID (diff)
From: Jonathan Cameron <jic23@cam.ac.uk>
To: alfred steele <alfred.jaquez-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Cc: Michael Lawnick <ml.lawnick-Mmb7MZpHnFY@public.gmane.org>,
linux-i2c-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
LM Sensors <lm-sensors-GZX6beZjE8VD60Wz+7aTrA@public.gmane.org>
Subject: Re: [lm-sensors] Use the Linux I2C subsystem for a two wire
Date: Thu, 16 Jul 2009 18:51:20 +0000 [thread overview]
Message-ID: <4A5F76A8.8080001@cam.ac.uk> (raw)
In-Reply-To: <528f13590907160929r1385c99el6c1ed16ca1b592d2-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
alfred steele wrote:
>> ~$ insmod sht15.ko
>> regulator: Unable to get requested regulator: vcc
>> sht15 sht15: Command not acknowledged
> Please ignore the 1st line as i have bypassed the regulator framework.
> Another quick question: The datasheet recommends 3.3V but the
> voltage measured on my lines are ~2.8V. That could be another spoiler.
It'll probably be fine.
I suggest sticking a scope on the signal lines and confirming things
that look about right are going down them.
Jonathan
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next prev parent reply other threads:[~2009-07-16 18:51 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-07-14 16:25 Use the Linux I2C subsystem for a two wire interface protocol alfred steele
[not found] ` <528f13590907140925h7aa36452o60da32d3bf941241-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2009-07-14 16:57 ` Jonathan Cameron
2009-07-14 16:57 ` [lm-sensors] Use the Linux I2C subsystem for a two wire Jonathan Cameron
[not found] ` <4A5CB908.4060404-KWPb1pKIrIJaa/9Udqfwiw@public.gmane.org>
2009-07-14 20:58 ` Use the Linux I2C subsystem for a two wire interface protocol alfred steele
2009-07-14 20:58 ` [lm-sensors] Use the Linux I2C subsystem for a two wire alfred steele
[not found] ` <528f13590907141358w17869b6fq450bf223e4f54687-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2009-07-15 5:41 ` [lm-sensors] Use the Linux I2C subsystem for a two wire interface protocol Michael Lawnick
2009-07-15 5:41 ` [lm-sensors] Use the Linux I2C subsystem for a two Michael Lawnick
[not found] ` <4A5D6C0A.7030903-Mmb7MZpHnFY@public.gmane.org>
2009-07-15 14:22 ` [lm-sensors] Use the Linux I2C subsystem for a two wire interface protocol alfred steele
2009-07-15 14:22 ` [lm-sensors] Use the Linux I2C subsystem for a two wire alfred steele
[not found] ` <528f13590907150722q2a91139bve72d65cbd555b8e9-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2009-07-15 14:43 ` [lm-sensors] Use the Linux I2C subsystem for a two wire interface protocol Jonathan Cameron
2009-07-15 14:43 ` [lm-sensors] Use the Linux I2C subsystem for a two wire Jonathan Cameron
[not found] ` <4A5DEB12.3020602-KWPb1pKIrIJaa/9Udqfwiw@public.gmane.org>
2009-07-15 15:46 ` [lm-sensors] Use the Linux I2C subsystem for a two wire interface protocol alfred steele
2009-07-15 15:46 ` [lm-sensors] Use the Linux I2C subsystem for a two wire alfred steele
[not found] ` <528f13590907150846o7f4e41daw4cd6e37ff3afef70-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2009-07-15 15:54 ` [lm-sensors] Use the Linux I2C subsystem for a two wire interface protocol Mark Brown
2009-07-15 15:54 ` [lm-sensors] Use the Linux I2C subsystem for a two Mark Brown
2009-07-15 17:32 ` [lm-sensors] Use the Linux I2C subsystem for a two wire interface protocol alfred steele
[not found] ` <528f13590907151032y30ae62beo486d4e1056219983-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2009-07-15 18:31 ` Jonathan Cameron
2009-07-15 18:31 ` [lm-sensors] Use the Linux I2C subsystem for a two wire Jonathan Cameron
[not found] ` <4A5E206F.8000001-KWPb1pKIrIJaa/9Udqfwiw@public.gmane.org>
2009-07-16 16:13 ` [lm-sensors] Use the Linux I2C subsystem for a two wire interface protocol alfred steele
2009-07-16 16:13 ` [lm-sensors] Use the Linux I2C subsystem for a two wire alfred steele
[not found] ` <528f13590907160913n73dcb4fcuf09f4946d7578793-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2009-07-16 16:29 ` [lm-sensors] Use the Linux I2C subsystem for a two wire interface protocol alfred steele
2009-07-16 16:29 ` [lm-sensors] Use the Linux I2C subsystem for a two wire alfred steele
[not found] ` <528f13590907160929r1385c99el6c1ed16ca1b592d2-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2009-07-16 18:51 ` Jonathan Cameron [this message]
2009-07-16 18:51 ` Jonathan Cameron
[not found] ` <4A5F76A8.8080001-KWPb1pKIrIJaa/9Udqfwiw@public.gmane.org>
2009-07-17 21:21 ` [lm-sensors] Use the Linux I2C subsystem for a two wire interface protocol alfred steele
2009-07-17 21:21 ` [lm-sensors] Use the Linux I2C subsystem for a two wire alfred steele
[not found] ` <528f13590907171421m26bc67ecg8d0334d20365406f-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2009-07-20 6:25 ` [lm-sensors] Use the Linux I2C subsystem for a two wire interface protocol alfred steele
2009-07-20 6:25 ` [lm-sensors] Use the Linux I2C subsystem for a two wire alfred steele
2009-07-21 11:57 ` [lm-sensors] Use the Linux I2C subsystem for a two wire interface protocol J.I. Cameron
2009-07-21 11:57 ` [lm-sensors] Use the Linux I2C subsystem for a two wire J.I. Cameron
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