Bin, I'm sorry but I cannot find that menuconfig at the Beagle... Does this mean I need to compile and configure a new kernel from Debian sources? On Fri, Oct 19, 2018 at 6:28 PM Bin Liu <b-liu@xxxxxx> wrote: > > On Fri, Oct 19, 2018 at 06:17:31PM +0200, Josep M. Mirats Tur wrote: > > Hi Bin, > > > > I was referring to the output of usbmon I attached in the previous > > message (attached again) > > > > I'm sorry but I do not know how to acces the kernel menuconfig to > > disable the MUSB CPPI DMA, how should I do that? > > In kernel menuconfig, go to > > Device Drivers ---> > [*] USB support ---> > <M> Inventra Highspeed Dual Role Controller (TI, ADI, AW, ...) > ... > <M> TI DSPS platforms > *** MUSB DMA mode *** > [*] Disable DMA (always use PIO) > > Please ensure the last option ("Disable DMA") is checked. > > Regards, > -Bin.