> > > > after a while of testing and searching I can come up with a patch > > that fixes g_ether <-> iperf for fsl_udc on ARM i.MX35. > > > > The sad part is that this kind of fix is already implemented for > > marvell mv_udc driver since last year but still _not_ in the ~15 > > other *udc.c drivers. > > It is a controller limitation (bug?) for chipidea controller when using dtd list to handle multi-dtds situation. The controller will read dtd's next pointer after this dtd's active bit has already been cleared. Freescale has an errata for this problem's description and solution. http://cache.freescale.com/files/dsp/doc/errata/IMX23CE.pdf See 2858 BR, Peter -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html