Re: Setting bitrate from user-space application

[Marc Kleine-Budde <mkl@pengutronix.de>]

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On 12/23/2015 03:03 PM, Guillaume Picquet wrote:
> A status update, thanks to libsocketcan I am able to get and set bitrate.

\o/

> remarks:
> Before setting bitrate a stop must be performed.

Yes - this way you can be sure that the new frames are send with the new
bitrate. Also think of a multi application CAN environment.

> I use poll() on CAN socket and it returns and set errno to ENETDOWN 
> during the stop but sockets stay valid. (no need to close and reopen).
> I Suppose it is normal behaviour, right ?

ENETDOWN is expected behaviour. That you don't need to close and reopen
the socket is.....nice, isn't it :) Let's say it's implementation
defined behaviour. Better close and reopen the socket.

Marc

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