On 10/26/2010 04:04 PM, Alexander Stein wrote: > On Tuesday 26 October 2010, 15:44:26 Marc Kleine-Budde wrote: >> On 10/26/2010 03:16 PM, Alexander Stein wrote: >>> I'm just wondering what's the correct way to change the bitrate. I >>> already noticed I need to shutdown the can interface previously. So I >>> use system() with "ip link..." to shutdown, set the new bitrate and >>> restart the interface. I kept my sockets during bitrate change and the >>> first read() or write() call return ENETDOWN once. Afterwards those >>> sockets work normally. >>> So, how can I get rid of this ENETDOWN? Close the sockets on this >>> interface previously? >> >> Yes. Shuttig down the interface causes all sockets bind()ed to that >> interface to get an -ENETDOWN. Either don't bind() to a specific can >> interface or close the sockets prior to shutdown and reopen them after. > > Unbound sockets receive frames from all interfaces, right? Well, this is > unusable in a test software on a multi channel hardware.
ACK :) Marc -- Pengutronix e.K. | Marc Kleine-Budde | Industrial Linux Solutions | Phone: +49-231-2826-924 | Vertretung West/Dortmund | Fax: +49-5121-206917-5555 | Amtsgericht Hildesheim, HRA 2686 | http://www.pengutronix.de |
signature.asc
Description: OpenPGP digital signature
_______________________________________________ Socketcan-users mailing list [email protected] https://lists.berlios.de/mailman/listinfo/socketcan-users
