Setting up Device Information Service with Zephyr

Question

I can't figure out how to set the DIS parameters in a Zephyr build. I've got 
 
 CONFIG_BT_DIS=y 
 
 In my prj.conf. And that exposes three characteristics: 
 
 0000180a-0000-1000-8000-00805f9b34fb (Handle: 16): Device Information
 Characteristic: 00002a24-0000-1000-8000-00805f9b34fb (Handle: 17): Model Number String
 Property: read
 Characteristic: 00002a29-0000-1000-8000-00805f9b34fb (Handle: 19): Manufacturer Name String
 Property: read
 Characteristic: 00002a50-0000-1000-8000-00805f9b34fb (Handle: 21): PnP ID
 Property: read
 But where in the setup files do I find the three strings so I can set their values? Tool chain v2.3.0 nRF Connect version 1.76.2

Hieu · Answer

Perhaps you misunderstood how Kconfigs are used. The file I referred to in my previous reply is the Kconfig definition. To configure them for your project, the simplest way is to update your prj.conf. 
 For example, if you want to set the SW Revision, the relevant definitions in Kconfig.dis are: 
 https://github.com/nrfconnect/sdk-zephyr/blob/v3.2.99-ncs2/subsys/bluetooth/services/Kconfig.dis#L134-L143 config BT_DIS_SW_REV
	bool "DIS Software Revision characteristic"
	help
 Enable Software Revision characteristic in Device Information Service.

config BT_DIS_SW_REV_STR
	string "Software revision"
	depends on BT_DIS_SW_REV
	help
 Enable software revision characteristic in Device Information Service. 
 From that, we would infer that we need to update our project prj.conf file as followed: 
 CONFIG_BT_DIS_SW_REV=y
CONFIG_BT_DIS_SW_REV_STR="2023.03.29.01" 
 I hope that example helps you understand my idea better. 
 See also: Configuration System (Kconfig) — Zephyr Project documentation (nRF Connect SDK) (nordicsemi.com) and its subpages. 
 Further see also: Build and Configuration Systems — Zephyr Project documentation (nRF Connect SDK) (nordicsemi.com) and its subpages (which include the first link).