1What:		/sys/class/udc/<udc>/a_alt_hnp_support
2Date:		June 2011
3KernelVersion:	3.1
4Contact:	Felipe Balbi <balbi@kernel.org>
5Description:
6		Indicates if an OTG A-Host supports HNP at an alternate port.
7Users:
8
9What:		/sys/class/udc/<udc>/a_hnp_support
10Date:		June 2011
11KernelVersion:	3.1
12Contact:	Felipe Balbi <balbi@kernel.org>
13Description:
14		Indicates if an OTG A-Host supports HNP at this port.
15Users:
16
17What:		/sys/class/udc/<udc>/b_hnp_enable
18Date:		June 2011
19KernelVersion:	3.1
20Contact:	Felipe Balbi <balbi@kernel.org>
21Description:
22		Indicates if an OTG A-Host enabled HNP support.
23Users:
24
25What:		/sys/class/udc/<udc>/current_speed
26Date:		June 2011
27KernelVersion:	3.1
28Contact:	Felipe Balbi <balbi@kernel.org>
29Description:
30		Indicates the current negotiated speed at this port.
31Users:
32
33What:		/sys/class/udc/<udc>/is_a_peripheral
34Date:		June 2011
35KernelVersion:	3.1
36Contact:	Felipe Balbi <balbi@kernel.org>
37Description:
38		Indicates that this port is the default Host on an OTG session
39		but HNP was used to switch roles.
40Users:
41
42What:		/sys/class/udc/<udc>/is_otg
43Date:		June 2011
44KernelVersion:	3.1
45Contact:	Felipe Balbi <balbi@kernel.org>
46Description:
47		Indicates that this port support OTG.
48Users:
49
50What:		/sys/class/udc/<udc>/maximum_speed
51Date:		June 2011
52KernelVersion:	3.1
53Contact:	Felipe Balbi <balbi@kernel.org>
54Description:
55		Indicates the maximum USB speed supported by this port.
56Users:
57
58What:		/sys/class/udc/<udc>/soft_connect
59Date:		June 2011
60KernelVersion:	3.1
61Contact:	Felipe Balbi <balbi@kernel.org>
62Description:
63		Allows users to disconnect data pullup resistors thus causing a
64		logical disconnection from the USB Host.
65Users:
66
67What:		/sys/class/udc/<udc>/srp
68Date:		June 2011
69KernelVersion:	3.1
70Contact:	Felipe Balbi <balbi@kernel.org>
71Description:
72		Allows users to manually start Session Request Protocol.
73Users:
74
75What:		/sys/class/udc/<udc>/state
76Date:		June 2011
77KernelVersion:	3.1
78Contact:	Felipe Balbi <balbi@kernel.org>
79Description:
80		Indicates current state of the USB Device Controller. Valid
81		states are: 'not-attached', 'attached', 'powered',
82		'reconnecting', 'unauthenticated', 'default', 'addressed',
83		'configured', and 'suspended'; however not all USB Device
84		Controllers support reporting all states.
85Users:
86
87What:		/sys/class/udc/<udc>/function
88Date:		June 2017
89KernelVersion:	4.13
90Contact:	Felipe Balbi <balbi@kernel.org>
91Description:
92		Prints out name of currently running USB Gadget Driver.
93Users:
94