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ble custom service and desc

Hi.

I try to test using ble pc-drivce C library & 52840 dongle on pc.

except custom service. everything is fine.

under below is custom service pic.

1. is it normal custom service end handle is 0xFFFF?

2. when discover descriptor, only 2 handle was found. I need cccd handle. but there are not.

  on ble connect(first photo), there is normal.

How can i search normal descriptor handle like first photo?

thank you.

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