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Diffstat (limited to 'Documentation/ABI/stable/sysfs-class-udc')
| -rw-r--r-- | Documentation/ABI/stable/sysfs-class-udc | 93 |
1 files changed, 93 insertions, 0 deletions
diff --git a/Documentation/ABI/stable/sysfs-class-udc b/Documentation/ABI/stable/sysfs-class-udc new file mode 100644 index 0000000000..d1e2f3ec1f --- /dev/null +++ b/Documentation/ABI/stable/sysfs-class-udc @@ -0,0 +1,93 @@ +What: /sys/class/udc/<udc>/a_alt_hnp_support +Date: June 2011 +KernelVersion: 3.1 +Contact: Felipe Balbi <balbi@kernel.org> +Description: + Indicates if an OTG A-Host supports HNP at an alternate port. +Users: + +What: /sys/class/udc/<udc>/a_hnp_support +Date: June 2011 +KernelVersion: 3.1 +Contact: Felipe Balbi <balbi@kernel.org> +Description: + Indicates if an OTG A-Host supports HNP at this port. +Users: + +What: /sys/class/udc/<udc>/b_hnp_enable +Date: June 2011 +KernelVersion: 3.1 +Contact: Felipe Balbi <balbi@kernel.org> +Description: + Indicates if an OTG A-Host enabled HNP support. +Users: + +What: /sys/class/udc/<udc>/current_speed +Date: June 2011 +KernelVersion: 3.1 +Contact: Felipe Balbi <balbi@kernel.org> +Description: + Indicates the current negotiated speed at this port. +Users: + +What: /sys/class/udc/<udc>/is_a_peripheral +Date: June 2011 +KernelVersion: 3.1 +Contact: Felipe Balbi <balbi@kernel.org> +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/<udc>/is_otg +Date: June 2011 +KernelVersion: 3.1 +Contact: Felipe Balbi <balbi@kernel.org> +Description: + Indicates that this port support OTG. +Users: + +What: /sys/class/udc/<udc>/maximum_speed +Date: June 2011 +KernelVersion: 3.1 +Contact: Felipe Balbi <balbi@kernel.org> +Description: + Indicates the maximum USB speed supported by this port. +Users: + +What: /sys/class/udc/<udc>/soft_connect +Date: June 2011 +KernelVersion: 3.1 +Contact: Felipe Balbi <balbi@kernel.org> +Description: + Allows users to disconnect data pullup resistors thus causing a + logical disconnection from the USB Host. +Users: + +What: /sys/class/udc/<udc>/srp +Date: June 2011 +KernelVersion: 3.1 +Contact: Felipe Balbi <balbi@kernel.org> +Description: + Allows users to manually start Session Request Protocol. +Users: + +What: /sys/class/udc/<udc>/state +Date: June 2011 +KernelVersion: 3.1 +Contact: Felipe Balbi <balbi@kernel.org> +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: + +What: /sys/class/udc/<udc>/function +Date: June 2017 +KernelVersion: 4.13 +Contact: Felipe Balbi <balbi@kernel.org> +Description: + Prints out name of currently running USB Gadget Driver. +Users: |