How do I Set the Device Name to Read Only?

[Andrew]

How do I change the properties of the Generic Access service's "Device Name" characteristic to be Read Only, not Read and Write? I see this

BLE_GAP_CONN_SEC_MODE_SET_OPEN(&sec_mode);

but this only offers security modes related to bonding and MITM protection. Is there something like this for the setting the Read/Write permissions?

I am using sdk10 with s130.

[FormerMember]

The first parameter in sd_ble_gap_device_name_set(..) sets the write permissions for the device name characteristic. Therefore, to make it read only, the sec_mode parameter should be set to "no access":

BLE_GAP_CONN_SEC_MODE_SET_NO_ACCESS(&sec_mode);

[Andrew]

That worked well. I had to make sure that I updated the nRF Connect app (deleting the bond, and re-bonding) so that it would re-scan the characteristics to reflect these changes as well. Thanks!