How to add the write permission to device name on GAP.

[WaSe_1778651]

Dear Infineon team,

I'm using the 89820 in my project. And I found some weird things in my project.

And I use the hello sensor application.

I found the device name of the GAP can have the write permission in the Bluetooth spec.

So I want to add that in my project but that is not working fine.

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//BEFORE

    // characteristics of GAP service

    PRIMARY_SERVICE_UUID16( HANDLE_PHUB_GAP_SERVICE, UUID_SERVICE_GAP ),

// Declare mandatory GAP service characteristic: Dev Name

CHARACTERISTIC_UUID16( HANDLE_PHUB_GAP_SERVICE_CHAR_DEV_NAME, HANDLE_PHUB_GAP_SERVICE_CHAR_DEV_NAME_VAL,

UUID_CHARACTERISTIC_DEVICE_NAME, LEGATTDB_CHAR_PROP_READ, LEGATTDB_PERM_READABLE ),

//AFTER

// Declare mandatory GAP service. Device Name and Appearance are mandatory

    // characteristics of GAP service

    PRIMARY_SERVICE_UUID16( HANDLE_PHUB_GAP_SERVICE, UUID_SERVICE_GAP ),

// Declare mandatory GAP service characteristic: Dev Name

CHARACTERISTIC_UUID16( HANDLE_PHUB_GAP_SERVICE_CHAR_DEV_NAME, HANDLE_PHUB_GAP_SERVICE_CHAR_DEV_NAME_VAL,

UUID_CHARACTERISTIC_DEVICE_NAME, LEGATTDB_CHAR_PROP_READ|LEGATTDB_CHAR_PROP_WRITE, LEGATTDB_PERM_READABLE|LEGATTDB_PERM_WRITABLE ),

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I'm adding the green high-light line but I could not find my whole characteristics in the phone application. (even though pairing is done.)

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Could you help me how to add the write permission to the device name characteristic?

Regards,

Wayne

[Owen_Zhang123 · Accepted solution]

As the spec says, if the device is discoverable, the device name should only be readable.