Hi Stephane,

On 01/20/2012 03:53 PM, Stephane Grosjean wrote:

Hi,

Found time to answer to all of you:

- first, thanks for your review and tests
- next, I did a new version of the driver which fixes Alan's issue about
the variables in the stack, and which is *very* much less verbose too.
- the driver itself sets now the can state according to some usb adapter
events

When unplugging the can cable, candump displays now:

  can4  20000004  [8] 00 30 00 00 00 00 00 00   ERRORFRAME
        controller-problem{rx-error-passive,tx-error-passive}
  can4  20000004  [8] 00 30 00 00 00 00 00 00   ERRORFRAME
        controller-problem{rx-error-passive,tx-error-passive}
  can4  20000004  [8] 00 30 00 00 00 00 00 00   ERRORFRAME
        controller-problem{rx-error-passive,tx-error-passive}
  can4  20000004  [8] 00 30 00 00 00 00 00 00   ERRORFRAME
        controller-problem{rx-error-passive,tx-error-passive}
...

Does the device report state change to error *warning* as well? Also,
the state change to error passive should only be reported *once*. Well,
it's state change. I don't known what the hardware is actually
reporting. If it does report the current state periodically, you need to
handle it accordingly.
BTW: are the error counters also availabe/readable?

Wolfgang.