On Tue, Mar 17, 2015 at 10:37:52PM +0800, Li Jun wrote: > From: Li Jun <b47624@xxxxxxxxxxxxx> > > Update HNP test procedure as HNP polling is supported. > > Signed-off-by: Li Jun <jun.li@xxxxxxxxxxxxx> > --- > Documentation/usb/chipidea.txt | 9 ++++----- > 1 file changed, 4 insertions(+), 5 deletions(-) > > diff --git a/Documentation/usb/chipidea.txt b/Documentation/usb/chipidea.txt > index 3f848c1..95d9170 100644 > --- a/Documentation/usb/chipidea.txt > +++ b/Documentation/usb/chipidea.txt > @@ -26,14 +26,13 @@ cat /sys/kernel/debug/ci_hdrc.0/registers > On B-device: > echo 1 > /sys/bus/platform/devices/ci_hdrc.0/inputs/b_bus_req > > - if HNP polling is not supported, also need: > - On A-device: > - echo 0 > /sys/bus/platform/devices/ci_hdrc.0/inputs/a_bus_req > - > B-device should take host role and enumrate A-device. > > 4) A-device switch back to host. > - On B-device: > + On A-device: > + echo 1 > /sys/bus/platform/devices/ci_hdrc.0/inputs/a_bus_req > + > + or, on B-device: Would you explain how it affect by introducing HNP polling and add to comment, I have not found it at OTG A-device with HNP State Diagram at otg 2.0 spec. > echo 0 > /sys/bus/platform/devices/ci_hdrc.0/inputs/b_bus_req > > A-device should switch back to host and enumrate B-device. > -- > 1.7.9.5 > -- Best Regards, Peter Chen -- 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
