[BUG] unable to create file src/modules/alsa/mixer/samples/USB Device 0x46d:0x9a4--USB Mixer: Invalid argument

[raffaem]

Describe the bug
Harmless error in initializing submodule.

To Reproduce

raffaele@raffaele-Nitro-AN515-52:/media/raffaele/DATA/data/linux/software$ git clone https://github.com/EHfive/pulseaudio-modules-bt.git
Cloning into 'pulseaudio-modules-bt'...
remote: Enumerating objects: 11, done.
remote: Counting objects: 100% (11/11), done.
remote: Compressing objects: 100% (8/8), done.
remote: Total 1021 (delta 1), reused 5 (delta 0), pack-reused 1010
Receiving objects: 100% (1021/1021), 384.17 KiB | 341.00 KiB/s, done.
Resolving deltas: 100% (599/599), done.
raffaele@raffaele-Nitro-AN515-52:/media/raffaele/DATA/data/linux/software$ cd pulseaudio-modules-bt
raffaele@raffaele-Nitro-AN515-52:/media/raffaele/DATA/data/linux/software/pulseaudio-modules-bt$ git submodule update --init
Submodule 'pa' (https://github.com/pulseaudio/pulseaudio.git) registered for path 'pa'
Cloning into '/media/raffaele/DATA/data/linux/software/pulseaudio-modules-bt/pa'...
error: unable to create file src/modules/alsa/mixer/samples/USB Device 0x46d:0x9a4--USB Mixer: Invalid argument
Unable to checkout 'cdeac178019ed3e73840702cb1223df5edd9df43' in submodule path 'pa'

Expected behavior
No error. However, the error is harmless. Following the subsequent instructions allow to compile and install the module. LDAC support is successfully installed

Environment (please complete the following information):

• Distribution [e.g. Ubuntu, Fedora, Arch ...]: Kubuntu 20.10
• Pulseaudio Version [e.g. v12.2]: pulseaudio 13.99.2
• Version [e.g. v1.2]: version of what?
• Installing via [e.g. manually compiled, precompiled package from xxx, ...]: git clone

Pulseaudio logs:
Tell me if those are necessary

avinfo of device:
(guide: #31 (comment))

The package bluez-tools does not include avinfo

raffaele@raffaele-Nitro-AN515-52:/media/raffaele/DATA/data/linux/software/pulseaudio-modules-bt$ dpkg-query -L bluez-tools
/.
/usr
/usr/bin
/usr/bin/bt-adapter
/usr/bin/bt-agent
/usr/bin/bt-device
/usr/bin/bt-network
/usr/bin/bt-obex
/usr/share
/usr/share/doc
/usr/share/doc/bluez-tools
/usr/share/doc/bluez-tools/README
/usr/share/doc/bluez-tools/changelog.Debian.gz
/usr/share/doc/bluez-tools/copyright
/usr/share/man
/usr/share/man/man1
/usr/share/man/man1/bt-adapter.1.gz
/usr/share/man/man1/bt-agent.1.gz
/usr/share/man/man1/bt-device.1.gz
/usr/share/man/man1/bt-network.1.gz
/usr/share/man/man1/bt-obex.1.gz

[EHfive]

It is related with file system.
Assumed that /media/raffaele/DATA/data/linux/software/ is on NTFS, the character : inside filename "USB Device 0x46d:0x9a4--USB Mixer" is invalid under NTFS which causes file creating fail.

[raffaem]

Right, thanks!

But the module works anyway .. do I have to recompile?