Hi Jignesh,

Thanks for your reply.

I did the changes as you suggested.
But i see the same message in the boot sequence and when i connect the
mouse.
Davinci I2C WARNING: NACK DETECTED

>From the boot sequence i do not understand for exactly which device is the
NAK error occuring.
Can you have a look at the booting sequence and tell exactly which device is
causing error?

Thanks.


Regards,
Aditya.

On Sat, Mar 5, 2011 at 6:39 PM, Jignesh Patel <[email protected]
> wrote:

>  Hi Aditya,
>
> Could you try out with additional flag : "*I2C_M_IGNORE_NAK*"
>
> You need to change code like:
> msg.flags = client->flags & I2C_M_TEN *|* *I2C_M_IGNORE_NAK*;
> in *i2c_master_send* and *i2c_master_recv* functions of i2c-core.c file.
>
> Fore more info:
> *http://lxr.linux.no/#linux+v2.6.37.2/Documentation/i2c/i2c-protocol*
> let me know this experiment works with you or not.
>
> Regards,
> Jignesh
>
> On 3/5/2011 12:15 PM, Aditya Barawkar wrote:
>
> Hi,
>
>    I am working on dm6446.
>
>  I am trying to connect a usb mouse to the board.
>
>  I'm now able to mount USB pendrive, and access the files in it.
>
> But when i insert USB mouse the i get error saying: Davinci I2C WARNING:
> NACK DETECTED
>
> In booting sequence too i get same error: Davinci I2C WARNING: NACK
> DETECTED
> I have attached the booting sequence. PFA.
>
>  The kernel is configured for USB host mode.
>
> Please suggest possible solution to my problem.
>
> Thanks in advance.
>
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