ODROID I2C IOError

[kakl]

After a while I2C input and output operations with this code
8d32f31
an error ocured:

(most recent call last):
File "./ble.py", line 92, in
spi.SPI_write_byte(spi.I2CSPI_SS0, 0x39)
File "/home/odroid/git/pymlab/src/pymlab/sensors/bus_translators.py", line 53, in SPI_write_byte
self.bus.write_byte_data(self.address, chip_select, data)
File "/home/odroid/git/pymlab/src/pymlab/sensors/init.py", line 220, in write_byte_data
return self.driver.write_byte_data(address, register, value)
File "/home/odroid/git/pymlab/src/pymlab/sensors/iic.py", line 106, in write_byte_data
return self.smbus.write_byte_data(address, register, value)
IOError: [Errno 11] Resource temporarily unavailable

After that the I2C is permanently unavailable.

[kakl]

dmesg:
[ 318.150578@0] i2c i2c-1: [aml_i2c_xfer] error ret = -5 (-EIO) token 1, master_no(1) 100K addr 0xd
[ 318.159435@0] i2c i2c-1: [aml_i2c_xfer] error ret = -5 (-EIO) token 1, master_no(1) 100K addr 0xd
[ 318.168334@0] i2c i2c-1: [aml_i2c_xfer] error ret = -5 (-EIO) token 1, master_no(1) 100K addr 0xe
[ 318.177130@0] i2c i2c-1: [aml_i2c_xfer] error ret = -5 (-EIO) token 1, master_no(1) 100K addr 0xe
[ 318.186008@0] i2c i2c-1: [aml_i2c_xfer] error ret = -5 (-EIO) token 1, master_no(1) 100K addr 0xe
[ 318.194902@0] i2c i2c-1: [aml_i2c_xfer] error ret = -5 (-EIO) token 1, master_no(1) 100K addr 0xf
[ 318.203704@0] i2c i2c-1: [aml_i2c_xfer] error ret = -5 (-EIO) token 1, master_no(1) 100K addr 0xf

[kakl]

I found this issue:
http://forum.odroid.com/viewtopic.php?f=115&t=12366

[kakl]

It was solved by kernel
Linux odroid 3.10.80-134 #1 SMP PREEMPT Wed Nov 25 04:52:16 BRST 2015 armv7l armv7l armv7l GNU/Linux

syslog after patch:
[39839.169090@1] i2c i2c-1: [aml_i2c_xfer] error ret = -5 (-EIO) token 1, master_no(1) 100K addr 0x2e
[47051.804139@1] i2c i2c-1: Controller Error! manual_en = 0, ack_ignore = 1
[47051.805254@1] i2c i2c-1: [aml_i2c_xfer] error ret = -5 (-EIO) token 1, master_no(1) 100K addr 0x2e
[47192.952977@1] i2c i2c-1: Controller Error! manual_en = 0, ack_ignore = 1
[47192.954092@1] i2c i2c-1: [aml_i2c_xfer] error ret = -5 (-EIO) token 1, master_no(1) 100K addr 0x2e
[47288.975176@1] i2c i2c-1: [aml_i2c_xfer] error ret = -5 (-EIO) token 1, master_no(1) 100K addr 0x2e
[47366.221540@0] i2c i2c-1: Controller Error! manual_en = 0, ack_ignore = 1
[47366.222665@0] i2c i2c-1: [aml_i2c_xfer] error ret = -5 (-EIO) token 1, master_no(1) 100K addr 0x2e
[47374.911466@0] i2c i2c-1: Controller Error! manual_en = 0, ack_ignore = 1