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- What: /config/usb-gadget
- Date: Jun 2013
- KernelVersion: 3.11
- Description:
- This group contains sub-groups corresponding to created
- USB gadgets.
- What: /config/usb-gadget/gadget
- Date: Jun 2013
- KernelVersion: 3.11
- Description:
- The attributes of a gadget:
- UDC - bind a gadget to UDC/unbind a gadget;
- write UDC's name found in /sys/class/udc/*
- to bind a gadget, empty string "" to unbind.
- bDeviceClass - USB device class code
- bDeviceSubClass - USB device subclass code
- bDeviceProtocol - USB device protocol code
- bMaxPacketSize0 - maximum endpoint 0 packet size
- bcdDevice - bcd device release number
- bcdUSB - bcd USB specification version number
- idProduct - product ID
- idVendor - vendor ID
- What: /config/usb-gadget/gadget/configs
- Date: Jun 2013
- KernelVersion: 3.11
- Description:
- This group contains a USB gadget's configurations
- What: /config/usb-gadget/gadget/configs/config
- Date: Jun 2013
- KernelVersion: 3.11
- Description:
- The attributes of a configuration:
- bmAttributes - configuration characteristics
- MaxPower - maximum power consumption from the bus
- What: /config/usb-gadget/gadget/configs/config/strings
- Date: Jun 2013
- KernelVersion: 3.11
- Description:
- This group contains subdirectories for language-specific
- strings for this configuration.
- What: /config/usb-gadget/gadget/configs/config/strings/language
- Date: Jun 2013
- KernelVersion: 3.11
- Description:
- The attributes:
- configuration - configuration description
- What: /config/usb-gadget/gadget/functions
- Date: Jun 2013
- KernelVersion: 3.11
- Description:
- This group contains functions available to this USB gadget.
- What: /config/usb-gadget/gadget/functions/<func>.<inst>/interface.<n>
- Date: May 2014
- KernelVersion: 3.16
- Description:
- This group contains "Feature Descriptors" specific for one
- gadget's USB interface or one interface group described
- by an IAD.
- The attributes:
- compatible_id - 8-byte string for "Compatible ID"
- sub_compatible_id - 8-byte string for "Sub Compatible ID"
- What: /config/usb-gadget/gadget/functions/<func>.<inst>/interface.<n>/<property>
- Date: May 2014
- KernelVersion: 3.16
- Description:
- This group contains "Extended Property Descriptors" specific for one
- gadget's USB interface or one interface group described
- by an IAD.
- The attributes:
- type - value 1..7 for interpreting the data
- 1: unicode string
- 2: unicode string with environment variable
- 3: binary
- 4: little-endian 32-bit
- 5: big-endian 32-bit
- 6: unicode string with a symbolic link
- 7: multiple unicode strings
- data - blob of data to be interpreted depending on
- type
- What: /config/usb-gadget/gadget/strings
- Date: Jun 2013
- KernelVersion: 3.11
- Description:
- This group contains subdirectories for language-specific
- strings for this gadget.
- What: /config/usb-gadget/gadget/strings/language
- Date: Jun 2013
- KernelVersion: 3.11
- Description:
- The attributes:
- serialnumber - gadget's serial number (string)
- product - gadget's product description
- manufacturer - gadget's manufacturer description
- What: /config/usb-gadget/gadget/os_desc
- Date: May 2014
- KernelVersion: 3.16
- Description:
- This group contains "OS String" extension handling attributes.
- use - flag turning "OS Desctiptors" support on/off
- b_vendor_code - one-byte value used for custom per-device and
- per-interface requests
- qw_sign - an identifier to be reported as "OS String"
- proper
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