1 What: /config/usb-gadget 1 What: /config/usb-gadget
2 Date: Jun 2013 2 Date: Jun 2013
3 KernelVersion: 3.11 3 KernelVersion: 3.11
4 Description: 4 Description:
5 This group contains sub-groups 5 This group contains sub-groups corresponding to created
6 USB gadgets. 6 USB gadgets.
7 7
8 What: /config/usb-gadget/gadget 8 What: /config/usb-gadget/gadget
9 Date: Jun 2013 9 Date: Jun 2013
10 KernelVersion: 3.11 10 KernelVersion: 3.11
11 Description: 11 Description:
12 12
13 The attributes of a gadget: 13 The attributes of a gadget:
14 14
15 ================ ============ 15 ================ ============================================
16 UDC bind a gadge 16 UDC bind a gadget to UDC/unbind a gadget;
17 write UDC's 17 write UDC's name found in /sys/class/udc/*
18 to bind a ga 18 to bind a gadget, empty string "" to unbind.
19 19
20 max_speed maximum spee 20 max_speed maximum speed the driver supports. Valid
21 names are su 21 names are super-speed-plus, super-speed,
22 high-speed, 22 high-speed, full-speed, and low-speed.
23 23
24 bDeviceClass USB device c 24 bDeviceClass USB device class code
25 bDeviceSubClass USB device s 25 bDeviceSubClass USB device subclass code
26 bDeviceProtocol USB device p 26 bDeviceProtocol USB device protocol code
27 bMaxPacketSize0 maximum endp 27 bMaxPacketSize0 maximum endpoint 0 packet size
28 bcdDevice bcd device r 28 bcdDevice bcd device release number
29 bcdUSB bcd USB spec 29 bcdUSB bcd USB specification version number
30 idProduct product ID 30 idProduct product ID
31 idVendor vendor ID 31 idVendor vendor ID
32 ================ ============ 32 ================ ============================================
33 33
34 What: /config/usb-gadget/gadget/conf 34 What: /config/usb-gadget/gadget/configs
35 Date: Jun 2013 35 Date: Jun 2013
36 KernelVersion: 3.11 36 KernelVersion: 3.11
37 Description: 37 Description:
38 This group contains a USB gadg 38 This group contains a USB gadget's configurations
39 39
40 What: /config/usb-gadget/gadget/conf 40 What: /config/usb-gadget/gadget/configs/config
41 Date: Jun 2013 41 Date: Jun 2013
42 KernelVersion: 3.11 42 KernelVersion: 3.11
43 Description: 43 Description:
44 The attributes of a configurat 44 The attributes of a configuration:
45 45
46 ================ ============ 46 ================ ======================================
47 bmAttributes configuratio 47 bmAttributes configuration characteristics
48 MaxPower maximum powe 48 MaxPower maximum power consumption from the bus
49 ================ ============ 49 ================ ======================================
50 50
51 What: /config/usb-gadget/gadget/conf 51 What: /config/usb-gadget/gadget/configs/config/strings
52 Date: Jun 2013 52 Date: Jun 2013
53 KernelVersion: 3.11 53 KernelVersion: 3.11
54 Description: 54 Description:
55 This group contains subdirecto 55 This group contains subdirectories for language-specific
56 strings for this configuration 56 strings for this configuration.
57 57
58 What: /config/usb-gadget/gadget/conf 58 What: /config/usb-gadget/gadget/configs/config/strings/language
59 Date: Jun 2013 59 Date: Jun 2013
60 KernelVersion: 3.11 60 KernelVersion: 3.11
61 Description: 61 Description:
62 The attributes: 62 The attributes:
63 63
64 ================ ============ 64 ================ =========================
65 configuration configuratio 65 configuration configuration description
66 ================ ============ 66 ================ =========================
67 67
68 68
69 What: /config/usb-gadget/gadget/func 69 What: /config/usb-gadget/gadget/functions
70 Date: Jun 2013 70 Date: Jun 2013
71 KernelVersion: 3.11 71 KernelVersion: 3.11
72 Description: 72 Description:
73 This group contains functions 73 This group contains functions available to this USB gadget.
74 74
75 What: /config/usb-gadget/gadget/func 75 What: /config/usb-gadget/gadget/functions/<func>.<inst>/interface.<n>
76 Date: May 2014 76 Date: May 2014
77 KernelVersion: 3.16 77 KernelVersion: 3.16
78 Description: 78 Description:
79 This group contains "Feature D 79 This group contains "Feature Descriptors" specific for one
80 gadget's USB interface or one 80 gadget's USB interface or one interface group described
81 by an IAD. 81 by an IAD.
82 82
83 The attributes: 83 The attributes:
84 84
85 ================= ====== 85 ================= =====================================
86 compatible_id 8-byte 86 compatible_id 8-byte string for "Compatible ID"
87 sub_compatible_id 8-byte 87 sub_compatible_id 8-byte string for "Sub Compatible ID"
88 ================= ====== 88 ================= =====================================
89 89
90 What: /config/usb-gadget/gadget/func 90 What: /config/usb-gadget/gadget/functions/<func>.<inst>/interface.<n>/<property>
91 Date: May 2014 91 Date: May 2014
92 KernelVersion: 3.16 92 KernelVersion: 3.16
93 Description: 93 Description:
94 This group contains "Extended 94 This group contains "Extended Property Descriptors" specific for one
95 gadget's USB interface or one 95 gadget's USB interface or one interface group described
96 by an IAD. 96 by an IAD.
97 97
98 The attributes: 98 The attributes:
99 99
100 ===== ============== 100 ===== ===============================================
101 type value 1..7 for 101 type value 1..7 for interpreting the data
102 102
103 - 1: unicode s 103 - 1: unicode string
104 - 2: unicode s 104 - 2: unicode string with environment variable
105 - 3: binary 105 - 3: binary
106 - 4: little-en 106 - 4: little-endian 32-bit
107 - 5: big-endia 107 - 5: big-endian 32-bit
108 - 6: unicode s 108 - 6: unicode string with a symbolic link
109 - 7: multiple 109 - 7: multiple unicode strings
110 data blob of data t 110 data blob of data to be interpreted depending on
111 type 111 type
112 ===== ============== 112 ===== ===============================================
113 113
114 What: /config/usb-gadget/gadget/stri 114 What: /config/usb-gadget/gadget/strings
115 Date: Jun 2013 115 Date: Jun 2013
116 KernelVersion: 3.11 116 KernelVersion: 3.11
117 Description: 117 Description:
118 This group contains subdirecto 118 This group contains subdirectories for language-specific
119 strings for this gadget. 119 strings for this gadget.
120 120
121 What: /config/usb-gadget/gadget/stri 121 What: /config/usb-gadget/gadget/strings/language
122 Date: Jun 2013 122 Date: Jun 2013
123 KernelVersion: 3.11 123 KernelVersion: 3.11
124 Description: 124 Description:
125 The attributes: 125 The attributes:
126 126
127 ============ ============== 127 ============ =================================
128 serialnumber gadget's seria 128 serialnumber gadget's serial number (string)
129 product gadget's produ 129 product gadget's product description
130 manufacturer gadget's manuf 130 manufacturer gadget's manufacturer description
131 ============ ============== 131 ============ =================================
132 132
133 What: /config/usb-gadget/gadget/os_d 133 What: /config/usb-gadget/gadget/os_desc
134 Date: May 2014 134 Date: May 2014
135 KernelVersion: 3.16 135 KernelVersion: 3.16
136 Description: 136 Description:
137 This group contains "OS String 137 This group contains "OS String" extension handling attributes.
138 138
139 ============= ============== 139 ============= ===============================================
140 use flag turning " 140 use flag turning "OS Descriptors" support on/off
141 b_vendor_code one-byte value 141 b_vendor_code one-byte value used for custom per-device and
142 per-interface 142 per-interface requests
143 qw_sign an identifier 143 qw_sign an identifier to be reported as "OS String"
144 proper 144 proper
145 ============= ============== 145 ============= ===============================================
146 146
147 What: /config/usb-gadget/gadget/webu 147 What: /config/usb-gadget/gadget/webusb
148 Date: Dec 2022 148 Date: Dec 2022
149 KernelVersion: 6.3 149 KernelVersion: 6.3
150 Description: 150 Description:
151 This group contains "WebUSB" e 151 This group contains "WebUSB" extension handling attributes.
152 152
153 ============= ============== 153 ============= ===============================================
154 use flag turning " 154 use flag turning "WebUSB" support on/off
155 bcdVersion bcd WebUSB spe 155 bcdVersion bcd WebUSB specification version number
156 bVendorCode one-byte value 156 bVendorCode one-byte value used for custom per-device
157 landingPage UTF-8 encoded 157 landingPage UTF-8 encoded URL of the device's landing page
158 ============= ============== 158 ============= ===============================================
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.