Re: [PATCH v4 10/11] Documentation: ABI: usb: sysfs Description for chipidea USB OTG HNP and SRP

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On Wed, Mar 19, 2014 at 06:01:43PM +0800, Li Jun wrote:
> From: Li Jun <b47624@xxxxxxxxxxxxx>
> 
> This patch adds sysfs interface description for chipidea USB OTG HNP and SRP.
> 
> Signed-off-by: Li Jun <b47624@xxxxxxxxxxxxx>
> ---
>  .../ABI/testing/sysfs-platform-chipidea-usb-otg    |   56 ++++++++++++++++++++
>  1 file changed, 56 insertions(+)
> 
> 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 0000000..6498810
> --- /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 <b47624@xxxxxxxxxxxxx>
> +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 <b47624@xxxxxxxxxxxxx>
> +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 <b47624@xxxxxxxxxxxxx>
> +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 <b47624@xxxxxxxxxxxxx>
> +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"
> -- 
> 1.7.9.5
> 
> 

-- 

Best Regards,
Peter Chen

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