Can't build nrf desktop after changing build to new .conf with identical contents

RE: Can't build nrf desktop after changing build to new .conf with identical contents

Sigurd Hellesvik — Wed, 06 Dec 2023 11:53:40 GMT

Is Kconfig: The Initial Configuration docs what you are looking for?

RE: Can't build nrf desktop after changing build to new .conf with identical contents

mrd — Wed, 06 Dec 2023 00:20:08 GMT

Okay, thank you.

Just to wrap this question up, could you explain or point to some resources that would explain how to rename prj_keyboard.conf and have it build, or more generally to add my own conf file?

I can just use prj_keyboard.conf for now, but it would be ideal if I could express in the filename that it is a modified conf file.

Thanks!

RE: Can't build nrf desktop after changing build to new .conf with identical contents

Sigurd Hellesvik — Mon, 04 Dec 2023 10:22:15 GMT

[quote user="mrd"]Why would I not be able to add my own custom .conf file with identical contents?[/quote]

Most likely because when you build with prj_keyboard.conf, other _keyboard files are automatically added to the build.
When you use a custom name, that will not be the case

RE: Can't build nrf desktop after changing build to support keyboard and mouse

Sigurd Hellesvik — Fri, 01 Dec 2023 08:44:09 GMT

[quote user="mrd"]If I build with a modified prj_keyboard.conf, it works.[/quote]

When you build with prj_keyboard.conf, the build system will also add other _keyboard files to the build, such as child_image/b0/prj_keyboard.conf

RE: Can't build nrf desktop after changing build to support keyboard and mouse

mrd — Thu, 30 Nov 2023 20:00:16 GMT

Ah I see!

I made a new .conf file with my new settings and attempted to link it into the project to cause the issue.

If I build with a modified prj_keyboard.conf, it works.

Why would I not be able to add my own custom .conf file with identical contents?

RE: Can't build nrf desktop after changing build to support keyboard and mouse

Sigurd Hellesvik — Thu, 30 Nov 2023 13:18:43 GMT

I tried to build the nrf_desktop sample for nRF52840DK with these configurations, and it builds without errors.

nRF Connect SDK v2.4.0

build command:

west build -p -b nrf52840dk_nrf52840 -- -DCONF_FILE=prj_keyboard.conf

Changes:

diff --git a/applications/nrf_desktop/configuration/nrf52840dk_nrf52840/prj_keyboard.conf b/applications/nrf_desktop/configuration/nrf52840dk_nrf52840/prj_keyboard.conf
index 6b32172e3..03302ecfb 100644
--- a/applications/nrf_desktop/configuration/nrf52840dk_nrf52840/prj_keyboard.conf
+++ b/applications/nrf_desktop/configuration/nrf52840dk_nrf52840/prj_keyboard.conf
@@ -115,3 +115,20 @@ CONFIG_BUILD_S1_VARIANT=y
 CONFIG_FW_INFO=y
 CONFIG_FW_INFO_FIRMWARE_VERSION=1
 CONFIG_SB_SIGNING_KEY_FILE="b0_private.pem"
+
+
+CONFIG_DESKTOP_HID_REPORT_MOUSE_SUPPORT=y
+CONFIG_DESKTOP_PERIPHERAL_TYPE_MOUSE=y
+CONFIG_DESKTOP_HID_BOOT_INTERFACE_MOUSE=y
+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
+CONFIG_DESKTOP_MOTION_SIMULATED_ENABLE=y
+CONFIG_DESKTOP_MOTION_SIMULATED_EDGE_TIME=32
+CONFIG_DESKTOP_MOTION_SIMULATED_SCALE_FACTOR=2
+CONFIG_DESKTOP_HID_REPORT_KEYBOARD_SUPPORT=y
+
+
+CONFIG_DESKTOP_HID_EVENT_QUEUE_SIZE=60

RE: Can't build nrf desktop after changing build to support keyboard and mouse

mrd — Wed, 29 Nov 2023 20:41:11 GMT

<nrf_desktop folder>/configuration/nrf52840dk_nrf52840/prj_keyboard.conf

and just in case it's relevant, I inserted the config definitions just below

CONFIG_DESKTOP_HID_EVENT_QUEUE_SIZE=60

RE: Can't build nrf desktop after changing build to support keyboard and mouse

Sigurd Hellesvik — Wed, 29 Nov 2023 11:36:26 GMT

[quote user=""]prj_keyboard.conf.[/quote]

Can you give the exact path?

Regards,
Sigurd Hellesvik