Can compile but not working

[kkiyama117]

I finally got GC573.ko with some comments on other issues (thanks to #4 , #9, #12, etc.).
However, even though GC573 is running on Windows, I cannot run gst_1.0_raw_*.sh because there is no video device in /dev. lspci recognizes the device as 0054.
dmesg also recognizes gc573, but /dev/video0 does not exist and v4l2-ctl ends up outputting cannot open device /dev/video0,exiting.
I'm a novice in this field, so I don't know how to fix it, but I'd like to help out as much as possible to get it working.
Here is the code I tested.

uname -r
5.19.1-3-MANJARO

lspci | grep -i aver
03:00.0 Multimedia video controller: Avermedia Technologies Inc Device 0054

sudo dmesg | grep -i GC573
[    5.036368] gc573: loading out-of-tree module taints kernel.
[    5.070927] gc573: module verification failed: signature and/or required key missing - tainting kernel
[    5.078422] gc573: pci_model_driver_init, 607: pci_model_driver_init
[    5.078426] gc573: pci_model_driver_init, 646: id->device=54
[    5.078446] gc573: pci_model_probe, 134: pci_model_probe prepare
[    5.078454] GC573 0000:03:00.0: enabling device (0000 -> 0002)
[    5.083862]  pci_model_probe+0x1de/0x240 [gc573 0e0151cf0f821fd24a2df573ac8056b8bff2eac6]
[    5.084016]  pci_model_driver_init+0x209/0x251 [gc573 0e0151cf0f821fd24a2df573ac8056b8bff2eac6]
[    5.084060]  board_init+0x73/0xa0 [gc573 0e0151cf0f821fd24a2df573ac8056b8bff2eac6]
[    5.084092]  ? board_remove+0xa0/0xa0 [gc573 0e0151cf0f821fd24a2df573ac8056b8bff2eac6]
[    5.084123]  ? board_probe+0x540/0x540 [gc573 0e0151cf0f821fd24a2df573ac8056b8bff2eac6]
[    5.084152]  ? board_suspend+0x140/0x140 [gc573 0e0151cf0f821fd24a2df573ac8056b8bff2eac6]
[    5.084183]  ? framegrabber_s_reg+0x30/0x30 [gc573 0e0151cf0f821fd24a2df573ac8056b8bff2eac6]
[    5.101884] Modules linked in: snd_hda_codec_generic eeepc_wmi gc573(OE+) pcc_cpufreq(-) fjes(-) ledtrig_audio snd_hda_codec_hdmi videobuf2_dma_contig asus_wmi ccp videobuf2_vmalloc snd_hda_intel rng_core sparse_keymap videobuf2_dma_sg platform_profile snd_intel_dspcfg videobuf2_memops snd_intel_sdw_acpi rfkill videobuf2_v4l2 video wmi_bmof snd_hda_codec videobuf2_common kvm videodev snd_hda_core irqbypass nls_iso8859_1 crct10dif_pclmul mc snd_hwdep crc32_pclmul r8169 vfat ghash_clmulni_intel fat aesni_intel snd_pcm realtek mdio_devres crypto_simd snd_timer cryptd snd sp5100_tco e1000e rapl libphy pcspkr soundcore i2c_piix4 k10temp wmi gpio_amdpt gpio_generic mac_hid acpi_cpufreq crypto_user fuse bpf_preload ip_tables x_tables ext4 crc32c_generic crc16 mbcache jbd2 nvme crc32c_intel nvme_core xhci_pci xhci_pci_renesas