Moin Wolfgang, On 10/13/2010 11:02 AM, Wolfgang Grandegger wrote: >>> is there a way to detect whether the CAN frame actually was sent on the >>> bus? I
[...] > I'm following the discussion and realized that it will not work for > devices doing the local loopback in hardware, like the flexcan > controller. Strictly speaking it will only work properly for drivers I realized that (yesterday while taking a shower), too. But that can be fixed. The TX-path of the flexcan only uses one buffer, that can be improved, too. > doing the local loopback in software when the TX done interrupt is > handled. Also some USB devices are not able to do that properly. Doesn't this devices have a TX complete interrupt? cheers, 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 |
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