linux-kernel - Re: [PATCH v2 1/1] can: ucan: add driver for Theobroma Systems UCAN devices

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Date:   Wed, 14 Mar 2018 11:19:51 +0100
From:   Jakob Unterwurzacher <jakob.unterwurzacher@...obroma-systems.com>
To:     Wolfgang Grandegger <wg@...ndegger.com>
Cc:     Martin Elshuber <martin.elshuber@...obroma-systems.com>,
        Philipp Tomsich <philipp.tomsich@...obroma-systems.com>,
        Marc Kleine-Budde <mkl@...gutronix.de>,
        linux-can@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 1/1] can: ucan: add driver for Theobroma Systems UCAN
 devices

On 14.03.18 11:04, Wolfgang Grandegger wrote:
>>>      controller-problem{rx-error-warning,tx-error-warning,rx-error-passive,tx-error-passive}
> 
> Just,
> 
>         controller-problem{rx-error-passive,tx-error-passive}

Ok.

>> (1b) cable gets connected:
>>
>>>   (000.000883)  can0  20000034   [8]  00 3C 00 00 00 00 80 00   ERRORFRAME
>>>      controller-problem{rx-error-warning,tx-error-warning,rx-error-passive,tx-error-passive}
>>>
>>>      transceiver-status
>>>      no-acknowledgement-on-tx
>>>      error-counter-tx-rx{{128}{0}}
>>>   (000.000996)  can0  20000004   [8]  00 0C 00 00 00 00 7F 00   ERRORFRAME
>>>      controller-problem{rx-error-warning,tx-error-warning}
>>>      error-counter-tx-rx{{127}{0}}
> 
> Back to error active is missing!? Have a look to:
> 
> https://elixir.bootlin.com/linux/latest/source/drivers/net/can/dev.c#L364

Should be sent out once the error counter drops further, will check.

Thanks,
Jakob