[SOLVED][Odroid C2]: Repeated errors in dmesg, bug or feature?

cosmos · January 22, 2018 at 11:34 AM

I am receiving a lot of errors constantly repeating every second or so on my Odroid C2/official LE 8.2.2, when running dmesg:

Quote

[ 7694.416298@1] rtc-pcf8563 1-0051: pcf8563_get_datetime: read error

[ 7695.415998@1] i2c i2c-1: [aml_i2c_xfer] error ret = -5 (-EIO)

[ 7695.416012@1] i2c i2c-1: token 1, master_no(1) 300K addr 0x51

[ 7695.416064@1] i2c i2c-1: [aml_i2c_xfer] error ret = -5 (-EIO)

[ 7695.416069@1] i2c i2c-1: token 1, master_no(1) 300K addr 0x51

[ 7695.416120@1] i2c i2c-1: [aml_i2c_xfer] error ret = -5 (-EIO)

[ 7695.416125@1] i2c i2c-1: token 1, master_no(1) 300K addr 0x51

[ 7695.416133@1] rtc-pcf8563 1-0051: pcf8563_set_datetime: err=-11 addr=02, data=36

[ 7695.416194@1] i2c i2c-1: [aml_i2c_xfer] error ret = -5 (-EIO)

[ 7695.416199@1] i2c i2c-1: token 1, master_no(1) 300K addr 0x51

[ 7695.416250@1] i2c i2c-1: [aml_i2c_xfer] error ret = -5 (-EIO)

[ 7695.416255@1] i2c i2c-1: token 1, master_no(1) 300K addr 0x51

[ 7695.416305@1] i2c i2c-1: [aml_i2c_xfer] error ret = -5 (-EIO)

[ 7695.416311@1] i2c i2c-1: token 1, master_no(1) 300K addr 0x51

[ 7695.416315@1] rtc-pcf8563 1-0051: pcf8563_get_datetime: read error

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Is this normal behavior?

cosmos · January 23, 2018 at 11:46 AM

Possibly a bug, see: pcf8563_get_datetime: read error

**chewitt** · January 23, 2018 at 2:24 PM Official Post

Does your C2 have an RTC shield fitted?

cosmos · January 24, 2018 at 5:31 PM

No, it doesn't.

**chewitt** · January 25, 2018 at 6:00 AM Official Post

That will be why you see error messages about the RTC not initialising then.

cosmos · January 26, 2018 at 8:15 AM

Thanks. I followed a workaround described in the link above, and worked fine. Consider this thread solved as well.