[Alsa-user] meson S905 GX arecord: main:828: audio open error: Invalid argument

[Rezzonics R. <rez...@gm...>]

I have modified play driver and developed capture driver for meson S905 GX
device (Odroid-C2)  based on mainline Linux v5.6.
I have also modified CS4245 codec driver.
"play" works fine:
root@hardkernel-odroidc2:~# aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: S905 [GXBB ODROID-C2 S905], device 0: fe.dai-link-0 (*) []
  Subdevices: 1/1
  Subdevice #0: subdevice #0

root@hardkernel-odroidc2:~# aplay -D plughw:0,0 -c 1 -f dat
/usr/share/sounds/alsa/Front_Right.wav
Playing WAVE '/usr/share/sounds/alsa/Front_Right.wav' : Signed 16 bit
Little Endian, Rate 48000 Hz, Mono

but "arecord" gives me an error message:
root@hardkernel-odroidc2:~# arecord -l
**** List of CAPTURE Hardware Devices ****
card 0: S905 [GXBB ODROID-C2 S905], device 3: fe.dai-link-3 (*) []
  Subdevices: 1/1
  Subdevice #0: subdevice #0

root@hardkernel-odroidc2:~# arecord -D hw:0,3 -c 1 -f S16_LE -d 10 -t wav
-r 48000  /tmp/test.wav
arecord: main:828: audio open error: Invalid argument

root@hardkernel-odroidc2:~# arecord -D plughw:0,3 -c 1 -f dat /dev/null
arecord: main:828: audio open error: Invalid argument

Could you help me trying to debug this issue?
Thanks and regards
Rezzonics