Hi Billy, On 11/6/2017 2:45 PM, Felipe Balbi wrote: > > Hi, > > (please, always Cc linux-usb) > > Billy Araujo <billyara...@gmail.com> writes: >> I saw your contact on Linkedin and it seems you are specialist USB drivers >> for Linux. I I am having an issue dwc2 driver generating lots of interrupts >> 8000 /sec and was wondering if you could give me with some advice on that. > > sounds like SOF interrupt is enabled. > >> I saw the raspberry pi by uses a dwc_otg and doesn't seem to have that >> issue. >> >> I don't understand very much what it is doing on the interrupts but when I >> initialise a 3rd party kernel module and library it seems to process these >> interrupts and the system becomes very slow. Do you think that installing >> the raspberry pi version of the dwc_otg driver would help? > > I would refrain from doing that and sticking to what's in the mainline > kernel tree. If you have issues, please work with the MAINTAINER for > that driver instead. > > Also, remember to further describe what's going on, show some logs, > kernel version, etc. > > Without information, nobody will be able to help you. > > Best of luck >
Yes, it SOF interrupts. SOF interrupt enabled only in host mode (non DescDMA mode) if any periodic EP in use. Without periodic EP SOF interrupt's dynamically disabled. Thanks, Minas -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
