Increase mouse in NRF desktop

[gandyhuang]

HI,

I am using nRFdestop sample in NCS 2.42, I want mouse+keyboard combo, So i add config in prj.conf below, and it can work now

CONFIG_DESKTOP_PERIPHERAL_TYPE_KEYBOARD=y

CONFIG_DESKTOP_HID_BOOT_INTERFACE_KEYBOARD=y

CONFIG_BT_HIDS_INPUT_REP_MAX=4

CONFIG_BT_HIDS_ATTR_MAX=42

CONFIG_BT_GATT_UUID16_POOL_SIZE=47

CONFIG_BT_GATT_CHRC_POOL_SIZE=25

i had follow by  RE: Can you configure nRF Desktop to be both a mouse and a keyboard at the same time? 

my question is : 

How to set  CONFIG_BT_HIDS_ATTR_MAX,CONFIG_BT_GATT_UUID16_POOL_SIZE,CONFIG_BT_GATT_CHRC_POOL_SIZE  when CONFIG_BT_HIDS_INPUT_REP_MAX=1 increase to 4? 

thanks

[Priyanka]

Hi Gandy,

Could you try with the following:

CONFIG_BT_HIDS_INPUT_REP_MAX=4

CONFIG_BT_HIDS_ATTR_MAX=49

CONFIG_BT_GATT_UUID16_POOL_SIZE=74

CONFIG_BT_GATT_CHRC_POOL_SIZE=24

Regards,

Priyanka

[gandyhuang]

hi Priyanka，

thanks you very much！

Is there a formulas to calculate those parameters？

[Priyanka]

Hi Gandy,

Please take a look at the CONFIG descriptions attached below:

https://developer.nordicsemi.com/nRF_Connect_SDK/doc/latest/kconfig/index.html#CONFIG_BT_HIDS_INPUT_REP_MAX 

https://developer.nordicsemi.com/nRF_Connect_SDK/doc/latest/kconfig/index.html#CONFIG_BT_HIDS_ATTR_MAX 

https://developer.nordicsemi.com/nRF_Connect_SDK/doc/latest/kconfig/index.html#CONFIG_BT_GATT_CHRC_POOL_SIZE 

https://developer.nordicsemi.com/nRF_Connect_SDK/doc/latest/kconfig/index.html#CONFIG_BT_GATT_UUID16_POOL_SIZE 

You can actually change the values according to how it fits your need as per the description.

Regards,

Priyanka