From be647b3bdca7fd7bff7736183cf4aedb411a1d23 Mon Sep 17 00:00:00 2001 From: Li Jun Date: Wed, 25 Jun 2014 15:28:45 +0800 Subject: ENGR00319720-9 Documentation: usb: chipidea: Update test procedure for HNP polling support Update HNP test procedure as HNP polling is supported. Signed-off-by: Li Jun --- Documentation/usb/chipidea.txt | 9 ++++----- 1 file changed, 4 insertions(+), 5 deletions(-) (limited to 'Documentation') diff --git a/Documentation/usb/chipidea.txt b/Documentation/usb/chipidea.txt index 8974578facc1..3dfda8de5f89 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: echo 0 > /sys/bus/platform/devices/ci_hdrc.0/inputs/b_bus_req A-device should switch back to host and enumrate B-device. -- cgit v1.2.3