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From: "Murali K. Vemuri" <murali-p1q9eIIu2y1Wk0Htik3J/w@public.gmane.org>
To: linux-i2c-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: i2c Issues
Date: Fri, 24 Dec 2010 20:23:23 +0900	[thread overview]
Message-ID: <002101cba35c$fba6ea50$f2f4bef0$@com> (raw)

Hi there,
I am working on OMAP 3530 , Linux Kernel version 2.6.32.
On OMAP I connected Audio Codec WM8993 as I2C (bus3) slave, with slave
address 0x1A.

I am able to initialize the I2C Bus correctly, and I successfully bound the
device to the driver. By adding a few debug messages, I get like this.

i2c_omap i2c_omap.3: bus 3 rev3.12 at 400
kHz                                                                         
                                                                            
      
i2c i2c-3: adapter [OMAP I2C adapter]
registered                                    
                                                                            
                                       
i2c i2c-3: client [AK8859] registered with bus id
3-0044                                                                      
                                                                          
i2c i2c-3: client [wm8993] registered with bus id 3-001a   

This is what I exactly intend to happen. After this step, I get the
i2c_probe triggered into the device, and at that time, HW read fails,
constantly.
I checked the physical address that is being read from. This address is
correct as well. 

Any pointers to how I can resolve this?

Thanks & regards
Murali


             reply	other threads:[~2010-12-24 11:23 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-12-24 11:23 Murali K. Vemuri [this message]
2011-01-10 14:33 ` i2c Issues Jean Delvare

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