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Commit | Line | Data |
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5b92f46c AP |
1 | What: /config/usb-gadget |
2 | Date: Jun 2013 | |
06519e7f | 3 | KernelVersion: 3.11 |
5b92f46c AP |
4 | Description: |
5 | This group contains sub-groups corresponding to created | |
6 | USB gadgets. | |
7 | ||
8 | What: /config/usb-gadget/gadget | |
9 | Date: Jun 2013 | |
06519e7f | 10 | KernelVersion: 3.11 |
5b92f46c AP |
11 | Description: |
12 | ||
13 | The attributes of a gadget: | |
14 | ||
15 | UDC - bind a gadget to UDC/unbind a gadget; | |
16 | write UDC's name found in /sys/class/udc/* | |
17 | to bind a gadget, empty string "" to unbind. | |
18 | ||
19 | bDeviceClass - USB device class code | |
20 | bDeviceSubClass - USB device subclass code | |
21 | bDeviceProtocol - USB device protocol code | |
22 | bMaxPacketSize0 - maximum endpoint 0 packet size | |
23 | bcdDevice - bcd device release number | |
24 | bcdUSB - bcd USB specification version number | |
25 | idProduct - product ID | |
26 | idVendor - vendor ID | |
27 | ||
28 | What: /config/usb-gadget/gadget/configs | |
29 | Date: Jun 2013 | |
06519e7f | 30 | KernelVersion: 3.11 |
5b92f46c AP |
31 | Description: |
32 | This group contains a USB gadget's configurations | |
33 | ||
34 | What: /config/usb-gadget/gadget/configs/config | |
35 | Date: Jun 2013 | |
36 | KernelVersion: 3.11 | |
37 | Description: | |
38 | The attributes of a configuration: | |
39 | ||
40 | bmAttributes - configuration characteristics | |
41 | MaxPower - maximum power consumption from the bus | |
42 | ||
43 | What: /config/usb-gadget/gadget/configs/config/strings | |
44 | Date: Jun 2013 | |
45 | KernelVersion: 3.11 | |
46 | Description: | |
47 | This group contains subdirectories for language-specific | |
48 | strings for this configuration. | |
49 | ||
50 | What: /config/usb-gadget/gadget/configs/config/strings/language | |
51 | Date: Jun 2013 | |
52 | KernelVersion: 3.11 | |
53 | Description: | |
54 | The attributes: | |
55 | ||
56 | configuration - configuration description | |
57 | ||
58 | ||
59 | What: /config/usb-gadget/gadget/functions | |
60 | Date: Jun 2013 | |
06519e7f | 61 | KernelVersion: 3.11 |
5b92f46c AP |
62 | Description: |
63 | This group contains functions available to this USB gadget. | |
64 | ||
da424314 AP |
65 | What: /config/usb-gadget/gadget/functions/<func>.<inst>/interface.<n> |
66 | Date: May 2014 | |
67 | KernelVersion: 3.16 | |
68 | Description: | |
69 | This group contains "Feature Descriptors" specific for one | |
70 | gadget's USB interface or one interface group described | |
71 | by an IAD. | |
72 | ||
73 | The attributes: | |
74 | ||
75 | compatible_id - 8-byte string for "Compatible ID" | |
76 | sub_compatible_id - 8-byte string for "Sub Compatible ID" | |
77 | ||
7419485f AP |
78 | What: /config/usb-gadget/gadget/functions/<func>.<inst>/interface.<n>/<property> |
79 | Date: May 2014 | |
80 | KernelVersion: 3.16 | |
81 | Description: | |
82 | This group contains "Extended Property Descriptors" specific for one | |
83 | gadget's USB interface or one interface group described | |
84 | by an IAD. | |
85 | ||
86 | The attributes: | |
87 | ||
88 | type - value 1..7 for interpreting the data | |
89 | 1: unicode string | |
90 | 2: unicode string with environment variable | |
91 | 3: binary | |
92 | 4: little-endian 32-bit | |
93 | 5: big-endian 32-bit | |
94 | 6: unicode string with a symbolic link | |
95 | 7: multiple unicode strings | |
96 | data - blob of data to be interpreted depending on | |
97 | type | |
98 | ||
5b92f46c AP |
99 | What: /config/usb-gadget/gadget/strings |
100 | Date: Jun 2013 | |
06519e7f | 101 | KernelVersion: 3.11 |
5b92f46c AP |
102 | Description: |
103 | This group contains subdirectories for language-specific | |
104 | strings for this gadget. | |
105 | ||
106 | What: /config/usb-gadget/gadget/strings/language | |
107 | Date: Jun 2013 | |
06519e7f | 108 | KernelVersion: 3.11 |
5b92f46c AP |
109 | Description: |
110 | The attributes: | |
111 | ||
112 | serialnumber - gadget's serial number (string) | |
113 | product - gadget's product description | |
114 | manufacturer - gadget's manufacturer description | |
115 | ||
87213d38 AP |
116 | What: /config/usb-gadget/gadget/os_desc |
117 | Date: May 2014 | |
118 | KernelVersion: 3.16 | |
119 | Description: | |
120 | This group contains "OS String" extension handling attributes. | |
121 | ||
122 | use - flag turning "OS Desctiptors" support on/off | |
123 | b_vendor_code - one-byte value used for custom per-device and | |
124 | per-interface requests | |
125 | qw_sign - an identifier to be reported as "OS String" | |
126 | proper |