Hi,
I am working on project where the peripheral has 2 services, and each has multiple characteristics.
The central needs to subscribe to all the characteristics and when doing so I am seeing error: -120 (Socket already connected)
Below is the device log from the central, as you can see I am reading 2 characteristics COMMAND and INDICATION.
When trying to subscribe to the characteristics, I can subscribe to the first characteristics whereas when subscribing to the second characteristics I am getting the error.
Found CMD CHR: 14 Found IND CHR: 17 bt_gatt_subscribe: 0, ccc_handle: 15 [SUBSCRIBED] bt_gatt_subscribe: -120, ccc_handle: 18
Let me also add our peripheral service server list here for reference
BT_GATT_SERVICE_DEFINE(dev_svc,
BT_GATT_PRIMARY_SERVICE(BT_UUID_DEV),
BT_GATT_CHARACTERISTIC(BT_UUID_CMD,
(BT_GATT_CHRC_WRITE | BT_GATT_CHRC_INDICATE),
BT_GATT_PERM_WRITE,
NULL, callback_write_cmd,
NULL),
BT_GATT_CCC(notif_ccc_cfg_changed, BT_GATT_PERM_READ | BT_GATT_PERM_WRITE),
BT_GATT_CHARACTERISTIC(BT_UUID_IND,
(BT_GATT_CHRC_WRITE | BT_GATT_CHRC_INDICATE),
BT_GATT_PERM_WRITE,
NULL, callback_write_ind,
NULL),
BT_GATT_CCC(notif_ccc_cfg_changed, BT_GATT_PERM_READ | BT_GATT_PERM_WRITE),
);
Please let me know if I am doing anything wrong or any config we should add.
I am working on NRF Connect SDK v2.7.0
Board: NRF52840
