LE GATT service discovery Over BR/EDR
Hi,
I am reading core spec 4.0.
GATT Features regarding Primary Service Discovery in page: 1911
"GATT service discovery over BR/EDR transport will list services that only run over an LE transport and therefore only SDP service discovery shall be used on BR/EDR."
Though SDP Service Discovery is able to get all the related service information. What is the use of GATT Service Discovery which gives only LE Information on BR/EDR Controller.
Thanks,
Sathish N
Hi Sathish:
Quoted 5 lines · Sathish Narasimman
Hi,
I am reading core spec 4.0.
GATT Features regarding Primary Service Discovery in page: 1911
Quoted 8 lines
"GATT service discovery over BR/EDR transport will list services that only run
over an LE transport and therefore only SDP service discovery shall be used on BR/EDR."Though SDP Service Discovery is able to get all the related service information. What is the use of
GATT Service Discovery which gives only LE Information on BR/EDR Controller.
SDP record will not provide information related to characteristics and descriptors.
For BR/EDR, GATT procedures are still required to discover, read and write characteristics.
Below is an example of a SDP record for GATT based services:
Service Name: Generic Access Profile
Service Provider: BlueZ
Service RecHandle: 0x10001
Service Class ID List:
"" (0x1800)
Protocol Descriptor List:
"L2CAP" (0x0100)
PSM: 31
"ATT" (0x0007)
uint16: 0x1
uint16: 0x5BR,
Claudio