Re: [Bluez-users] adding a sdp service with a 128bit uuid

[Ka Kin Cheung <michaelhku2002@yahoo.com.hk>]

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Hi Marco!
    Can you send the program you wrote to me for reference? Or can you tell briefly the algorithm about the program you wrote about adding a service profile, especially for which functions in sdptool.c are nneded? Thank you very much.
Michael

Marco Trudel <mtrudel@gmx.ch> wrote:
Hello everybody

by reading sdptool.c, I was able to write a little program that promotes my 
service. Realising this, 3 questions arised:

1. general:
how to browse the local sdp services?
[sdptool browse dev] seems to be only for remote devices. I now always did 
it from another device to see the local seervices. how to [sdptool browse 
localhost]?

2. from add_sp(...) in sdptool.c, changing:
# sdp_uuid16_create(&sp_uuid, SERIAL_PORT_SVCLASS_ID);
into:
# sdp_uuid128_create(&sp_uuid, a128bitUUID);
gives me (if I do [sdptool browse from the other device]):
# Service Class ID List:
# "Error: This is uuid128" (0x0a333444-5556-6677-7888-9aa99000a1a1)
Actually it works well. But why is it saying "Error: ..."? I noticed that 
using the avetana jsr82 implementation (that uses bluez), and creating a 
sdp entry with a 128bit uuid, it shows the same error.

3. actually this is more a c then a bluez question, but i'd appreciate if 
someone could tell it nevertheless:
# sdp_uuid32_create(uuid_t *uuid, uint32_t data);
# sdp_uuid128_create(uuid_t *uuid, const void *data);
the second function takes the uuid as "const void *data". What is the 
appropriate way to give a uuid like 2c3ef0c843674369b1dfb7315e76332a to 
that function?
I asked google and he (she?) told me this:
http://www.xgarreau.org/aide/devel/bluetooth/timeserver.c
but it seems a little big for me...


regards
Marco


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