On Mon, Feb 8, 2010 at 3:36 PM, Daniel Mack <daniel@xxxxxxxx> wrote: > On Mon, Feb 08, 2010 at 03:02:14PM +0800, Jebediah Huang wrote: >> >> output if max732x enabled is: >> # ./i2ctest >> [ 184.070025] i2c: error: exhausted retries >> fd=3 >> t=-1 >> [ 184.074256] i2c: msg_num: 0 msg_idx: -2000 msg_ptr: 0 >> [ 184.080428] i2c: ICR: 000007e0 ISR: 00000002 >> [ 184.080444] i2c: log: [00000006:00000000] [00000006:00000000] >> [00000006:00000000] [00000006:00000000] [00000006:00000000] >> [00000006:00000000] [00000006:00 >> 000000] [00000006:00000000] [00000006:00000000] [00000006:00000000] >> [00000006:00000000] [00000007:00000000] [00000447:000007e0] >> t=-1 > > How do you enable/disable the chip? As Eric said, the error above > indicates an eletrical issue with the bus. I disable by doing menuconfig and disable max732x: # CONFIG_GPIO_MAX732X is not set > >> disable max732x is: >> # ./i2ctest no button pressed > > What are you testing without the chip? > I am testing the I2C from i2ctest application using I2C_PXA. -- To unsubscribe from this list: send the line "unsubscribe linux-input" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
