From 57f0f512b273f60d52568b8c6b77e17f5636edc0 Mon Sep 17 00:00:00 2001 From: André Fabian Silva Delgado Date: Wed, 5 Aug 2015 17:04:01 -0300 Subject: Initial import --- .../ABI/testing/sysfs-platform-chipidea-usb-otg | 56 ++++++++++++++++++++++ 1 file changed, 56 insertions(+) create mode 100644 Documentation/ABI/testing/sysfs-platform-chipidea-usb-otg (limited to 'Documentation/ABI/testing/sysfs-platform-chipidea-usb-otg') diff --git a/Documentation/ABI/testing/sysfs-platform-chipidea-usb-otg b/Documentation/ABI/testing/sysfs-platform-chipidea-usb-otg new file mode 100644 index 000000000..151c59578 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-platform-chipidea-usb-otg @@ -0,0 +1,56 @@ +What: /sys/bus/platform/devices/ci_hdrc.0/inputs/a_bus_req +Date: Feb 2014 +Contact: Li Jun +Description: + Can be set and read. + Set a_bus_req(A-device bus request) input to be 1 if + the application running on the A-device wants to use the bus, + and to be 0 when the application no longer wants to use + the bus(or wants to work as peripheral). a_bus_req can also + be set to 1 by kernel in response to remote wakeup signaling + from the B-device, the A-device should decide to resume the bus. + + Valid values are "1" and "0". + + Reading: returns 1 if the application running on the A-device + is using the bus as host role, otherwise 0. + +What: /sys/bus/platform/devices/ci_hdrc.0/inputs/a_bus_drop +Date: Feb 2014 +Contact: Li Jun +Description: + Can be set and read + The a_bus_drop(A-device bus drop) input is 1 when the + application running on the A-device wants to power down + the bus, and is 0 otherwise, When a_bus_drop is 1, then + the a_bus_req shall be 0. + + Valid values are "1" and "0". + + Reading: returns 1 if the bus is off(vbus is turned off) by + A-device, otherwise 0. + +What: /sys/bus/platform/devices/ci_hdrc.0/inputs/b_bus_req +Date: Feb 2014 +Contact: Li Jun +Description: + Can be set and read. + The b_bus_req(B-device bus request) input is 1 during the time + that the application running on the B-device wants to use the + bus as host, and is 0 when the application no longer wants to + work as host and decides to switch back to be peripheral. + + Valid values are "1" and "0". + + Reading: returns if the application running on the B device + is using the bus as host role, otherwise 0. + +What: /sys/bus/platform/devices/ci_hdrc.0/inputs/a_clr_err +Date: Feb 2014 +Contact: Li Jun +Description: + Only can be set. + The a_clr_err(A-device Vbus error clear) input is used to clear + vbus error, then A-device will power down the bus. + + Valid value is "1" -- cgit v1.2.3-54-g00ecf