From f2918ad89df5a5deb4773e13b5f6e21eabfce282 Mon Sep 17 00:00:00 2001 From: Felipe Balbi Date: Fri, 10 Oct 2014 15:21:56 -0500 Subject: [PATCH] usb: gadget: udc: document our sysfs ABI I noticed that this has been missing for quite some time so I decided it was about time to document it. Signed-off-by: Felipe Balbi --- Documentation/ABI/stable/sysfs-class-udc | 93 ++++++++++++++++++++++++ 1 file changed, 93 insertions(+) create mode 100644 Documentation/ABI/stable/sysfs-class-udc diff --git a/Documentation/ABI/stable/sysfs-class-udc b/Documentation/ABI/stable/sysfs-class-udc new file mode 100644 index 000000000000..85d3dac2e204 --- /dev/null +++ b/Documentation/ABI/stable/sysfs-class-udc @@ -0,0 +1,93 @@ +What: /sys/class/udc//a_alt_hnp_support +Date: June 2011 +KernelVersion: 3.1 +Contact: Felipe Balbi +Description: + Indicates if an OTG A-Host supports HNP at an alternate port. +Users: + +What: /sys/class/udc//a_hnp_support +Date: June 2011 +KernelVersion: 3.1 +Contact: Felipe Balbi +Description: + Indicates if an OTG A-Host supports HNP at this port. +Users: + +What: /sys/class/udc//b_hnp_enable +Date: June 2011 +KernelVersion: 3.1 +Contact: Felipe Balbi +Description: + Indicates if an OTG A-Host enabled HNP support. +Users: + +What: /sys/class/udc//current_speed +Date: June 2011 +KernelVersion: 3.1 +Contact: Felipe Balbi +Description: + Indicates the current negotiated speed at this port. +Users: + +What: /sys/class/udc//is_a_peripheral +Date: June 2011 +KernelVersion: 3.1 +Contact: Felipe Balbi +Description: + Indicates that this port is the default Host on an OTG session + but HNP was used to switch roles. +Users: + +What: /sys/class/udc//is_otg +Date: June 2011 +KernelVersion: 3.1 +Contact: Felipe Balbi +Description: + Indicates that this port support OTG. +Users: + +What: /sys/class/udc//maximum_speed +Date: June 2011 +KernelVersion: 3.1 +Contact: Felipe Balbi +Description: + Indicates the maximum USB speed supported by this port. +Users: + +What: /sys/class/udc//maximum_speed +Date: June 2011 +KernelVersion: 3.1 +Contact: Felipe Balbi +Description: + Indicates the maximum USB speed supported by this port. +Users: + +What: /sys/class/udc//soft_connect +Date: June 2011 +KernelVersion: 3.1 +Contact: Felipe Balbi +Description: + Allows users to disconnect data pullup resistors thus causing a + logical disconnection from the USB Host. +Users: + +What: /sys/class/udc//srp +Date: June 2011 +KernelVersion: 3.1 +Contact: Felipe Balbi +Description: + Allows users to manually start Session Request Protocol. +Users: + +What: /sys/class/udc//state +Date: June 2011 +KernelVersion: 3.1 +Contact: Felipe Balbi +Description: + Indicates current state of the USB Device Controller. Valid + states are: 'not-attached', 'attached', 'powered', + 'reconnecting', 'unauthenticated', 'default', 'addressed', + 'configured', and 'suspended'; however not all USB Device + Controllers support reporting all states. +Users: -- 2.20.1