| Andrzej Pietrasiewicz | 5b92f46 | 2013-06-13 10:37:26 +0200 | [diff] [blame] | 1 | What: /config/usb-gadget |
| 2 | Date: Jun 2013 |
| Ard Biesheuvel | 06519e7 | 2014-01-29 14:05:54 -0800 | [diff] [blame] | 3 | KernelVersion: 3.11 |
| Andrzej Pietrasiewicz | 5b92f46 | 2013-06-13 10:37:26 +0200 | [diff] [blame] | 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 |
| Ard Biesheuvel | 06519e7 | 2014-01-29 14:05:54 -0800 | [diff] [blame] | 10 | KernelVersion: 3.11 |
| Andrzej Pietrasiewicz | 5b92f46 | 2013-06-13 10:37:26 +0200 | [diff] [blame] | 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 |
| Ard Biesheuvel | 06519e7 | 2014-01-29 14:05:54 -0800 | [diff] [blame] | 30 | KernelVersion: 3.11 |
| Andrzej Pietrasiewicz | 5b92f46 | 2013-06-13 10:37:26 +0200 | [diff] [blame] | 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 |
| Ard Biesheuvel | 06519e7 | 2014-01-29 14:05:54 -0800 | [diff] [blame] | 61 | KernelVersion: 3.11 |
| Andrzej Pietrasiewicz | 5b92f46 | 2013-06-13 10:37:26 +0200 | [diff] [blame] | 62 | Description: |
| 63 | This group contains functions available to this USB gadget. |
| 64 | |
| Andrzej Pietrasiewicz | da42431 | 2014-05-08 14:06:26 +0200 | [diff] [blame] | 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 | |
| Andrzej Pietrasiewicz | 7419485 | 2014-05-08 14:06:28 +0200 | [diff] [blame] | 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 | |
| Andrzej Pietrasiewicz | 5b92f46 | 2013-06-13 10:37:26 +0200 | [diff] [blame] | 99 | What: /config/usb-gadget/gadget/strings |
| 100 | Date: Jun 2013 |
| Ard Biesheuvel | 06519e7 | 2014-01-29 14:05:54 -0800 | [diff] [blame] | 101 | KernelVersion: 3.11 |
| Andrzej Pietrasiewicz | 5b92f46 | 2013-06-13 10:37:26 +0200 | [diff] [blame] | 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 |
| Ard Biesheuvel | 06519e7 | 2014-01-29 14:05:54 -0800 | [diff] [blame] | 108 | KernelVersion: 3.11 |
| Andrzej Pietrasiewicz | 5b92f46 | 2013-06-13 10:37:26 +0200 | [diff] [blame] | 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 | |
| Andrzej Pietrasiewicz | 87213d3 | 2014-05-08 14:06:25 +0200 | [diff] [blame] | 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 |