Linux I2C development
 help / color / mirror / Atom feed
From: "naveen krishna ch" <naveenkrishna.ch-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
To: Nishanth Menon <menon.nishanth-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Cc: i2c-GZX6beZjE8VD60Wz+7aTrA@public.gmane.org
Subject: Re: i2c 2 issues on omap3430
Date: Mon, 25 Aug 2008 18:39:20 +0530	[thread overview]
Message-ID: <ef0d8a250808250609i2d95bdb8x5fa0bd78368bf610@mail.gmail.com> (raw)
In-Reply-To: <48B29D85.5030208-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>


[-- Attachment #1.1: Type: text/plain, Size: 580 bytes --]

>
> Hi,

         I am working on a touch pad driver which uses i2c reads and writes
to the touch pad registers. But, i observe the i2c reads are not consistent.
when i try to read the Manufacturer information i get some junk values. when
i try resetting all the register and read those values i get some other
unexpected values.

I feel like its a serious OMAP3 I2C-2 timing issue.

         But with same uImage some times i get correct values.

Do any one know what i am missing on. and how to debug this issue.


Thankfull for your suggestions.

>
>


(: Naveen Krishna Ch :)

[-- Attachment #1.2: Type: text/html, Size: 1052 bytes --]

[-- Attachment #2: Type: text/plain, Size: 157 bytes --]

_______________________________________________
i2c mailing list
i2c-GZX6beZjE8VD60Wz+7aTrA@public.gmane.org
http://lists.lm-sensors.org/mailman/listinfo/i2c

  parent reply	other threads:[~2008-08-25 13:09 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <ef0d8a250808250005sbf8bb8cg9cfacc6a6f2b4195@mail.gmail.com>
     [not found] ` <ef0d8a250808250005sbf8bb8cg9cfacc6a6f2b4195-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2008-08-25  7:18   ` i2c 2 issues on omap3430 naveen krishna ch
2008-08-25  8:41     ` [i2c] " Felipe Balbi
     [not found]     ` <ef0d8a250808250018w587c2de0s726511c52c0794e3-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2008-08-25 11:54       ` Nishanth Menon
     [not found]         ` <48B29D85.5030208-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2008-08-25 13:09           ` naveen krishna ch [this message]
     [not found]             ` <ef0d8a250808250609i2d95bdb8x5fa0bd78368bf610-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2008-08-25 13:23               ` Nishanth Menon

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=ef0d8a250808250609i2d95bdb8x5fa0bd78368bf610@mail.gmail.com \
    --to=naveenkrishna.ch-re5jqeeqqe8avxtiumwx3w@public.gmane.org \
    --cc=i2c-GZX6beZjE8VD60Wz+7aTrA@public.gmane.org \
    --cc=menon.nishanth-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox