opcodes documentation

[Raoul]

hi all,

in the bluetooth man page i read:

SYNOPSIS
    bt_devsend(int s, uint16_t opcode, void *param, size_t plen);

    ...

DESCRIPTION
     The bt_devsend() function sends a Bluetooth HCI command with the given
     opcode to the provided socket s, previously obtained with bt_devopen(3).
     The opcode parameter is expected to be in the host byte order.  The param
     and plen parameters specify command parameters.  The bt_devsend() func-
     tion does not modify the HCI filter on the provided socket s.  The func-
     tion returns 0 on success, or -1 if an error occurred.

grep'ing in netgraph/...
i don't find any opcode other than in bt_devsend...

are they device specifics, or something like read/rwite and so on?

Sorry for thje naive newbie question, but sure some slight
additions to the man page would be appreciated on this topic.

Thanks.

Raoul
rmgls at free.fr