On Fri, 24 Dec 2010 20:23:23 +0900, Murali K. Vemuri wrote: > 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? Check with i2cdetect and then i2cdump if you can talk to the device in question from user-space (using the i2c-dev driver). If you can't, it's a hardware issue. If you can, it's a driver issue. -- Jean Delvare -- To unsubscribe from this list: send the line "unsubscribe linux-i2c" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
