Odroid c2 spdif sound on usb sound cart sb omni surrond 5.1

Good afternoon! I have Odroid c2 and a creative soundblaster omni surround 5.1 usb-sound card with an optical SPDIF output. Unfortunately, the output of sound via this device (through the output spdif) does not work in libreelec (version 8.0.1 MR). The sound card was defined as ALSA: SB OMNI 5.1 SPDIF, however, there is no sound on the receiver (unlike wasapi in Kodi on windows 10). By hdmi the sound is. Prompt please that it is possible to make? Thank you!