Modifications composed during UPF38
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- v1 Latest3 patches 7 repliesIn review
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| # | Subject and files | Size | Replies | Applied |
|---|---|---|---|---|
| 1/3 | Fixed def of ATT_UUID per BT Assigned Numberslib/ | +1 | 1 reply | |
| 2/3 | Add SDP registration of Primary GATT servicesattrib/ src/ src/ | +184 | 3 replies | |
| 3/3 | Add gatttool enhancements for UPFattrib/ | +52 | 3 replies |
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Cover letter [PATCH 0/3] Modifications composed during UPF38
The major change in these patches is to register Primary Services into the SDP databases as required when registering them into the attrib-server's database. The Core v4.0 specification indicates that the only valid/foolproof way for a BR/EDR client to query a server for Primary Services is to do so via an SDP query. This is from Core v4.0, Vol 3, Part G, Sec 4.4:
"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."
This also means that there can be "LE Only" primary services that do NOT need to be in the SDP database, so if a valid range is not specified when registering a Primary Service, it will be omitted from SDP, and only appear when performing a GATT based Primary Service Discover.
Also -- The ATT_UUID we were using was incorrect, and I extended the functionality of the gatttool to allow for listening without sending anything, and ability to perform both a char-write and char-cmd.
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Brian Gix [email protected] Employee of Qualcomm Innovation Center, Inc. Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum