CONFIG_NET_NBUF_USER_DATA_SIZE:

This is for drivers to set how much user_data shall be included in each network data fragment. Example: For Bluetooth, the user_data shall be at least 4 bytes as that is used for identifying the type of data they are carrying.

Symbol:

NET_NBUF_USER_DATA_SIZE
Type:

int
Value:

“”
User value:

(no user value)
Visibility:

“n”
Is choice item:

false
Is defined:

true
Is from env.:

false
Is special:

false
Prompts:
  • “Size of user_data reserved”
Default values:
  • 0 (value: “n”)
  • Condition: (none)
  • 4 (value: “n”)
  • Condition: NET_L2_BLUETOOTH (value: “n”)
Selects:

(no selects)
Reverse (select-related) dependencies:
 

(no reverse dependencies)
Additional dependencies from enclosing menus and ifs:
 

NETWORKING && NETWORKING (value: “n”)
Locations:
  • ../subsys/net/ip/Kconfig:254